octave: liboctave/util/oct-inttypes.h annotate

annotate liboctave/util/oct-inttypes.h @ 17822:ebb3ef964372

maint: Use common #define syntax "octave_filename_h" in h_files. * libgui/src/dialog.h, libgui/src/find-files-dialog.h, libgui/src/find-files-model.h, libgui/src/m-editor/file-editor-tab.h, libgui/src/m-editor/octave-qscintilla.h, libgui/src/main-window.h, libgui/src/octave-dock-widget.h, libgui/src/workspace-model.h, libgui/src/workspace-view.h, libinterp/corefcn/Cell.h, libinterp/corefcn/gl-render.h, libinterp/corefcn/gl2ps-renderer.h, libinterp/corefcn/graphics.in.h, libinterp/corefcn/oct-errno.h, libinterp/corefcn/oct-fstrm.h, libinterp/corefcn/oct-handle.h, libinterp/corefcn/oct-hdf5.h, libinterp/corefcn/oct-hist.h, libinterp/corefcn/oct-iostrm.h, libinterp/corefcn/oct-lvalue.h, libinterp/corefcn/oct-prcstrm.h, libinterp/corefcn/oct-procbuf.h, libinterp/corefcn/oct-stdstrm.h, libinterp/corefcn/oct-stream.h, libinterp/corefcn/oct-strstrm.h, libinterp/corefcn/octave-link.h, libinterp/corefcn/pt-jit.h, libinterp/octave-value/ov-base-diag.h, libinterp/octave-value/ov-base-int.h, libinterp/octave-value/ov-base-mat.h, libinterp/octave-value/ov-base-scalar.h, libinterp/octave-value/ov-base-sparse.h, libinterp/octave-value/ov-base.h, libinterp/octave-value/ov-bool-mat.h, libinterp/octave-value/ov-bool-sparse.h, libinterp/octave-value/ov-bool.h, libinterp/octave-value/ov-builtin.h, libinterp/octave-value/ov-cell.h, libinterp/octave-value/ov-ch-mat.h, libinterp/octave-value/ov-class.h, libinterp/octave-value/ov-colon.h, libinterp/octave-value/ov-complex.h, libinterp/octave-value/ov-cs-list.h, libinterp/octave-value/ov-cx-diag.h, libinterp/octave-value/ov-cx-mat.h, libinterp/octave-value/ov-cx-sparse.h, libinterp/octave-value/ov-dld-fcn.h, libinterp/octave-value/ov-fcn-handle.h, libinterp/octave-value/ov-fcn-inline.h, libinterp/octave-value/ov-fcn.h, libinterp/octave-value/ov-float.h, libinterp/octave-value/ov-flt-complex.h, libinterp/octave-value/ov-flt-cx-diag.h, libinterp/octave-value/ov-flt-cx-mat.h, libinterp/octave-value/ov-flt-re-diag.h, libinterp/octave-value/ov-flt-re-mat.h, libinterp/octave-value/ov-int-traits.h, libinterp/octave-value/ov-int16.h, libinterp/octave-value/ov-int32.h, libinterp/octave-value/ov-int64.h, libinterp/octave-value/ov-int8.h, libinterp/octave-value/ov-java.h, libinterp/octave-value/ov-lazy-idx.h, libinterp/octave-value/ov-mex-fcn.h, libinterp/octave-value/ov-null-mat.h, libinterp/octave-value/ov-perm.h, libinterp/octave-value/ov-range.h, libinterp/octave-value/ov-re-diag.h, libinterp/octave-value/ov-re-mat.h, libinterp/octave-value/ov-re-sparse.h, libinterp/octave-value/ov-scalar.h, libinterp/octave-value/ov-str-mat.h, libinterp/octave-value/ov-struct.h, libinterp/octave-value/ov-typeinfo.h, libinterp/octave-value/ov-uint16.h, libinterp/octave-value/ov-uint32.h, libinterp/octave-value/ov-uint64.h, libinterp/octave-value/ov-uint8.h, libinterp/octave-value/ov-usr-fcn.h, libinterp/octave-value/ov.h, libinterp/parse-tree/pt-all.h, libinterp/parse-tree/pt-arg-list.h, libinterp/parse-tree/pt-array-list.h, libinterp/parse-tree/pt-assign.h, libinterp/parse-tree/pt-binop.h, libinterp/parse-tree/pt-bp.h, libinterp/parse-tree/pt-cbinop.h, libinterp/parse-tree/pt-cell.h, libinterp/parse-tree/pt-check.h, libinterp/parse-tree/pt-cmd.h, libinterp/parse-tree/pt-colon.h, libinterp/parse-tree/pt-const.h, libinterp/parse-tree/pt-decl.h, libinterp/parse-tree/pt-eval.h, libinterp/parse-tree/pt-except.h, libinterp/parse-tree/pt-exp.h, libinterp/parse-tree/pt-fcn-handle.h, libinterp/parse-tree/pt-id.h, libinterp/parse-tree/pt-idx.h, libinterp/parse-tree/pt-jump.h, libinterp/parse-tree/pt-loop.h, libinterp/parse-tree/pt-mat.h, libinterp/parse-tree/pt-misc.h, libinterp/parse-tree/pt-pr-code.h, libinterp/parse-tree/pt-select.h, libinterp/parse-tree/pt-stmt.h, libinterp/parse-tree/pt-unop.h, libinterp/parse-tree/pt-walk.h, libinterp/parse-tree/pt.h, liboctave/array/CColVector.h, liboctave/array/CDiagMatrix.h, liboctave/array/CMatrix.h, liboctave/array/CNDArray.h, liboctave/array/CRowVector.h, liboctave/array/boolMatrix.h, liboctave/array/chMatrix.h, liboctave/array/chNDArray.h, liboctave/array/dColVector.h, liboctave/array/dDiagMatrix.h, liboctave/array/dMatrix.h, liboctave/array/dNDArray.h, liboctave/array/dRowVector.h, liboctave/array/fCColVector.h, liboctave/array/fCDiagMatrix.h, liboctave/array/fCMatrix.h, liboctave/array/fCNDArray.h, liboctave/array/fCRowVector.h, liboctave/array/fColVector.h, liboctave/array/fDiagMatrix.h, liboctave/array/fMatrix.h, liboctave/array/fNDArray.h, liboctave/array/fRowVector.h, liboctave/cruft/misc/lo-error.h, liboctave/numeric/CmplxAEPBAL.h, liboctave/numeric/CmplxCHOL.h, liboctave/numeric/CmplxGEPBAL.h, liboctave/numeric/CmplxHESS.h, liboctave/numeric/CmplxLU.h, liboctave/numeric/CmplxQR.h, liboctave/numeric/CmplxQRP.h, liboctave/numeric/CmplxSCHUR.h, liboctave/numeric/CmplxSVD.h, liboctave/numeric/Quad.h, liboctave/numeric/SparseCmplxCHOL.h, liboctave/numeric/SparseCmplxLU.h, liboctave/numeric/SparseCmplxQR.h, liboctave/numeric/SparseQR.h, liboctave/numeric/SparsedbleCHOL.h, liboctave/numeric/SparsedbleLU.h, liboctave/numeric/bsxfun.h, liboctave/numeric/dbleAEPBAL.h, liboctave/numeric/dbleCHOL.h, liboctave/numeric/dbleGEPBAL.h, liboctave/numeric/dbleHESS.h, liboctave/numeric/dbleLU.h, liboctave/numeric/dbleQR.h, liboctave/numeric/dbleQRP.h, liboctave/numeric/dbleSCHUR.h, liboctave/numeric/dbleSVD.h, liboctave/numeric/fCmplxAEPBAL.h, liboctave/numeric/fCmplxCHOL.h, liboctave/numeric/fCmplxGEPBAL.h, liboctave/numeric/fCmplxHESS.h, liboctave/numeric/fCmplxLU.h, liboctave/numeric/fCmplxQR.h, liboctave/numeric/fCmplxQRP.h, liboctave/numeric/fCmplxSCHUR.h, liboctave/numeric/fCmplxSVD.h, liboctave/numeric/fEIG.h, liboctave/numeric/floatAEPBAL.h, liboctave/numeric/floatCHOL.h, liboctave/numeric/floatGEPBAL.h, liboctave/numeric/floatHESS.h, liboctave/numeric/floatLU.h, liboctave/numeric/floatQR.h, liboctave/numeric/floatQRP.h, liboctave/numeric/floatSCHUR.h, liboctave/numeric/floatSVD.h, liboctave/numeric/lo-mappers.h, liboctave/numeric/lo-specfun.h, liboctave/numeric/oct-convn.h, liboctave/numeric/oct-norm.h, liboctave/numeric/oct-rand.h, liboctave/operators/Sparse-diag-op-defs.h, liboctave/operators/Sparse-op-defs.h, liboctave/operators/Sparse-perm-op-defs.h, liboctave/system/lo-sysdep.h, liboctave/system/oct-env.h, liboctave/system/oct-group.h, liboctave/system/oct-openmp.h, liboctave/system/oct-passwd.h, liboctave/system/oct-syscalls.h, liboctave/system/oct-time.h, liboctave/system/oct-uname.h, liboctave/util/lo-array-gripes.h, liboctave/util/lo-cutils.h, liboctave/util/lo-ieee.h, liboctave/util/lo-macros.h, liboctave/util/lo-math.h, liboctave/util/lo-regexp.h, liboctave/util/lo-traits.h, liboctave/util/lo-utils.h, liboctave/util/oct-base64.h, liboctave/util/oct-binmap.h, liboctave/util/oct-glob.h, liboctave/util/oct-inttypes.h, liboctave/util/oct-locbuf.h, liboctave/util/oct-mem.h, liboctave/util/oct-mutex.h, liboctave/util/oct-refcount.h, liboctave/util/oct-rl-edit.h, liboctave/util/oct-rl-hist.h, liboctave/util/oct-shlib.h, liboctave/util/oct-sort.h, liboctave/util/oct-sparse.h: Use common #define syntax "octave_filename_h" in h_files.

author	Rik <rik@octave.org>
date	Thu, 31 Oct 2013 22:19:07 -0700
parents	49a5a4be04a1
children	824c05a6d3ec

rev	line source
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	1 /*
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	2
17744 d63878346099 maint: Update copyright notices for release. John W. Eaton <jwe@octave.org> parents: 15271 diff changeset	3 Copyright (C) 2004-2013 John W. Eaton
11523 fd0a3ac60b0e update copyright notices John W. Eaton <jwe@octave.org> parents: 10436 diff changeset	4 Copyright (C) 2008-2009 Jaroslav Hajek
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	5
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	6 This file is part of Octave.
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	7
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	8 Octave is free software; you can redistribute it and/or modify it
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	9 under the terms of the GNU General Public License as published by the
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6764 diff changeset	10 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6764 diff changeset	11 option) any later version.
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	12
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	13 Octave is distributed in the hope that it will be useful, but WITHOUT
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	16 for more details.
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	17
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	18 You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6764 diff changeset	19 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6764 diff changeset	20 <http://www.gnu.org/licenses/>.
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	21
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	22 */
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	23
17822 ebb3ef964372 maint: Use common #define syntax "octave_filename_h" in h_files. Rik <rik@octave.org> parents: 17769 diff changeset	24 #if !defined (octave_oct_inttypes_h)
ebb3ef964372 maint: Use common #define syntax "octave_filename_h" in h_files. Rik <rik@octave.org> parents: 17769 diff changeset	25 #define octave_oct_inttypes_h 1
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	26
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	27 #include <cstdlib>
6482 7e958a1532c6 [project @ 2007-04-04 02:37:07 by jwe] jwe parents: 6402 diff changeset	28
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	29 #include <limits>
8950 d865363208d6 include <iosfwd> instead of <iostream> in header files John W. Eaton <jwe@octave.org> parents: 8920 diff changeset	30 #include <iosfwd>
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	31
8731 5abe5ae55465 use lo-traits in oct-inttypes Jaroslav Hajek <highegg@gmail.com> parents: 8333 diff changeset	32 #include "lo-traits.h"
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	33 #include "lo-math.h"
4969 52f808101130 [project @ 2004-09-08 02:44:04 by jwe] jwe parents: 4968 diff changeset	34 #include "lo-mappers.h"
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	35
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	36 #ifdef OCTAVE_INT_USE_LONG_DOUBLE
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	37 inline long double xround (long double x) { return roundl (x); }
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	38 inline long double xisnan (long double x)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	39 { return xisnan (static_cast<double> (x)); }
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	40 #endif
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	41
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	42 // FIXME: we define this by our own because some compilers, such as
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	43 // MSVC, do not provide std::abs (int64_t) and std::abs (uint64_t). In
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	44 // the future, it should go away in favor of std::abs.
8293 ad5bb02d267a workaround missing std::abs(int64_t) in MSVC Jaroslav Hajek <highegg@gmail.com> parents: 8202 diff changeset	45 template <class T>
ad5bb02d267a workaround missing std::abs(int64_t) in MSVC Jaroslav Hajek <highegg@gmail.com> parents: 8202 diff changeset	46 inline T octave_int_abs (T x) { return x >= 0 ? x : -x; }
ad5bb02d267a workaround missing std::abs(int64_t) in MSVC Jaroslav Hajek <highegg@gmail.com> parents: 8202 diff changeset	47
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	48 // Query for an integer type of certain sizeof, and signedness.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	49 template<int qsize, bool qsigned>
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	50 struct query_integer_type
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	51 {
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	52 public:
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	53 static const bool registered = false;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	54 typedef void type; // Void shall result in a compile-time error if we
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	55 // attempt to use it in computations.
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	56 };
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	57
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	58 #define REGISTER_INT_TYPE(TYPE) \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	59 template <> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	60 class query_integer_type<sizeof (TYPE), std::numeric_limits<TYPE>::is_signed> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	61 { \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	62 public: \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	63 static const bool registered = true; \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	64 typedef TYPE type; \
7598 a89b3fa632ee partial specialization for octave_int_fit_to_range John W. Eaton <jwe@octave.org> parents: 7596 diff changeset	65 }
7596 6929e40fc597 compatible handling of NaN -> int conversions John W. Eaton <jwe@octave.org> parents: 7534 diff changeset	66
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	67 // No two registered integers can share sizeof and signedness.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	68 REGISTER_INT_TYPE (int8_t);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	69 REGISTER_INT_TYPE (uint8_t);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	70 REGISTER_INT_TYPE (int16_t);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	71 REGISTER_INT_TYPE (uint16_t);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	72 REGISTER_INT_TYPE (int32_t);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	73 REGISTER_INT_TYPE (uint32_t);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	74 REGISTER_INT_TYPE (int64_t);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	75 REGISTER_INT_TYPE (uint64_t);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	76
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	77 // Rationale: Comparators have a single static method, rel(), that returns the
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	78 // result of the binary relation. They also have two static boolean fields:
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	79 // ltval, gtval determine the value of x OP y if x < y, x > y, respectively.
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	80 #define REGISTER_OCTAVE_CMP_OP(NM,OP) \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	81 class NM \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	82 { \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	83 public: \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	84 static const bool ltval = (0 OP 1), gtval = (1 OP 0); \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	85 template <class T> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	86 static bool op (T x, T y) { return x OP y; } \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	87 }
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	88
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	89 // We also provide two special relations: ct, yielding always true, and cf,
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	90 // yielding always false.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	91 #define REGISTER_OCTAVE_CONST_OP(NM,value) \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	92 class NM \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	93 { \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	94 public: \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	95 static const bool ltval = value, gtval = value; \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	96 template <class T> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	97 static bool op (T, T) { return value; } \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	98 }
4943 1a499d0c58f5 [project @ 2004-08-31 00:51:31 by jwe] jwe parents: 4920 diff changeset	99
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	100 // Handles non-homogeneous integer comparisons. Avoids doing useless tests.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	101 class octave_int_cmp_op
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	102 {
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	103 // This determines a suitable promotion type for T1 when meeting T2 in a
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	104 // binary relation. If promotion to int or T2 is safe, it is used. Otherwise,
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	105 // the signedness of T1 is preserved and it is widened if T2 is wider.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	106 // Notice that if this is applied to both types, they must end up with equal
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	107 // size.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	108 template <class T1, class T2>
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	109 class prom
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	110 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	111 // Promote to int?
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	112 static const bool pint = (sizeof (T1) < sizeof (int)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	113 && sizeof (T2) < sizeof (int));
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	114 static const bool t1sig = std::numeric_limits<T1>::is_signed;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	115 static const bool t2sig = std::numeric_limits<T2>::is_signed;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	116 static const bool psig =
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	117 (pint \|\| (sizeof (T2) > sizeof (T1) && t2sig) \|\| t1sig);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	118 static const int psize =
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	119 (pint ? sizeof (int) : (sizeof (T2) > sizeof (T1)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	120 ? sizeof (T2) : sizeof (T1)));
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	121 public:
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	122 typedef typename query_integer_type<psize, psig>::type type;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	123 };
4943 1a499d0c58f5 [project @ 2004-08-31 00:51:31 by jwe] jwe parents: 4920 diff changeset	124
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	125 // Implements comparisons between two types of equal size but
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	126 // possibly different signedness.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	127 template<class xop, int size>
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	128 class uiop
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	129 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	130 typedef typename query_integer_type<size, false>::type utype;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	131 typedef typename query_integer_type<size, true>::type stype;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	132 public:
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	133 static bool op (utype x, utype y)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	134 { return xop::op (x, y); }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	135 static bool op (stype x, stype y)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	136 { return xop::op (x, y); }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	137 static bool op (stype x, utype y)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	138 { return (x < 0) ? xop::ltval : xop::op (static_cast<utype> (x), y); }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	139 static bool op (utype x, stype y)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	140 { return (y < 0) ? xop::gtval : xop::op (x, static_cast<utype> (y)); }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	141 };
4943 1a499d0c58f5 [project @ 2004-08-31 00:51:31 by jwe] jwe parents: 4920 diff changeset	142
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	143 public:
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	144 REGISTER_OCTAVE_CMP_OP (lt, <);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	145 REGISTER_OCTAVE_CMP_OP (le, <=);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	146 REGISTER_OCTAVE_CMP_OP (gt, >);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	147 REGISTER_OCTAVE_CMP_OP (ge, >=);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	148 REGISTER_OCTAVE_CMP_OP (eq, ==);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	149 REGISTER_OCTAVE_CMP_OP (ne, !=);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	150 REGISTER_OCTAVE_CONST_OP (ct, true);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	151 REGISTER_OCTAVE_CONST_OP (cf, false);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	152
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	153 // Universal comparison operation.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	154 template<class xop, class T1, class T2>
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	155 static bool
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	156 op (T1 x, T2 y)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	157 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	158 typedef typename prom<T1, T2>::type PT1;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	159 typedef typename prom<T2, T1>::type PT2;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	160 return uiop<xop, sizeof (PT1)>::op (static_cast<PT1> (x),
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	161 static_cast<PT2> (y));
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	162 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	163
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	164 public:
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	165
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	166 // Mixed comparisons
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	167 template <class xop, class T>
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	168 static bool
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	169 mop (T x, double y)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	170 { return xop::op (static_cast<double> (x), y); }
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	171
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	172 template <class xop, class T>
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	173 static bool
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	174 mop (double x, T y)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	175 { return xop::op (x, static_cast<double> (y)); }
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	176
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	177 // Typecasting to doubles won't work properly for 64-bit integers --
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	178 // they lose precision.
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	179 // If we have long doubles, use them...
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	180 #ifdef OCTAVE_INT_USE_LONG_DOUBLE
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	181 #define DEFINE_LONG_DOUBLE_CMP_OP(T1, T2) \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	182 template <class xop> \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	183 static bool \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	184 mop (T1 x, T2 y) \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	185 { \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	186 return xop::op (static_cast<long double> (x), \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	187 static_cast<long double> (y)); \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	188 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	189 #else
8856 ab4db66e286f workaround gcc 4.3 explicit instantiation bug in octave_int_cmp_op Jaroslav Hajek <highegg@gmail.com> parents: 8731 diff changeset	190 // ... otherwise, use external handlers
ab4db66e286f workaround gcc 4.3 explicit instantiation bug in octave_int_cmp_op Jaroslav Hajek <highegg@gmail.com> parents: 8731 diff changeset	191
ab4db66e286f workaround gcc 4.3 explicit instantiation bug in octave_int_cmp_op Jaroslav Hajek <highegg@gmail.com> parents: 8731 diff changeset	192 // FIXME: We could declare directly the mop methods as external,
ab4db66e286f workaround gcc 4.3 explicit instantiation bug in octave_int_cmp_op Jaroslav Hajek <highegg@gmail.com> parents: 8731 diff changeset	193 // but we can't do this because bugs in gcc (<= 4.3) prevent
ab4db66e286f workaround gcc 4.3 explicit instantiation bug in octave_int_cmp_op Jaroslav Hajek <highegg@gmail.com> parents: 8731 diff changeset	194 // explicit instantiations later in that case.
ab4db66e286f workaround gcc 4.3 explicit instantiation bug in octave_int_cmp_op Jaroslav Hajek <highegg@gmail.com> parents: 8731 diff changeset	195 #define DEFINE_LONG_DOUBLE_CMP_OP(T1, T2) \
ab4db66e286f workaround gcc 4.3 explicit instantiation bug in octave_int_cmp_op Jaroslav Hajek <highegg@gmail.com> parents: 8731 diff changeset	196 template <class xop> static OCTAVE_API bool \
ab4db66e286f workaround gcc 4.3 explicit instantiation bug in octave_int_cmp_op Jaroslav Hajek <highegg@gmail.com> parents: 8731 diff changeset	197 emulate_mop (T1, T2); \
ab4db66e286f workaround gcc 4.3 explicit instantiation bug in octave_int_cmp_op Jaroslav Hajek <highegg@gmail.com> parents: 8731 diff changeset	198 template <class xop> \
ab4db66e286f workaround gcc 4.3 explicit instantiation bug in octave_int_cmp_op Jaroslav Hajek <highegg@gmail.com> parents: 8731 diff changeset	199 static bool \
ab4db66e286f workaround gcc 4.3 explicit instantiation bug in octave_int_cmp_op Jaroslav Hajek <highegg@gmail.com> parents: 8731 diff changeset	200 mop (T1 x, T2 y) \
ab4db66e286f workaround gcc 4.3 explicit instantiation bug in octave_int_cmp_op Jaroslav Hajek <highegg@gmail.com> parents: 8731 diff changeset	201 { \
ab4db66e286f workaround gcc 4.3 explicit instantiation bug in octave_int_cmp_op Jaroslav Hajek <highegg@gmail.com> parents: 8731 diff changeset	202 return emulate_mop<xop> (x, y); \
ab4db66e286f workaround gcc 4.3 explicit instantiation bug in octave_int_cmp_op Jaroslav Hajek <highegg@gmail.com> parents: 8731 diff changeset	203 }
ab4db66e286f workaround gcc 4.3 explicit instantiation bug in octave_int_cmp_op Jaroslav Hajek <highegg@gmail.com> parents: 8731 diff changeset	204 #endif
ab4db66e286f workaround gcc 4.3 explicit instantiation bug in octave_int_cmp_op Jaroslav Hajek <highegg@gmail.com> parents: 8731 diff changeset	205
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	206 DEFINE_LONG_DOUBLE_CMP_OP(double, uint64_t)
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	207 DEFINE_LONG_DOUBLE_CMP_OP(double, int64_t)
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	208 DEFINE_LONG_DOUBLE_CMP_OP(int64_t, double)
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	209 DEFINE_LONG_DOUBLE_CMP_OP(uint64_t, double)
8856 ab4db66e286f workaround gcc 4.3 explicit instantiation bug in octave_int_cmp_op Jaroslav Hajek <highegg@gmail.com> parents: 8731 diff changeset	210
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	211 #undef DEFINE_LONG_DOUBLE_CMP_OP
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	212 };
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	213
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	214 // Base integer class. No data, just conversion methods and exception flags.
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	215 template <class T>
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	216 class octave_int_base
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	217 {
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	218 protected:
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	219
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	220 static T min_val () { return std::numeric_limits<T>:: min (); }
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	221 static T max_val () { return std::numeric_limits<T>:: max (); }
4943 1a499d0c58f5 [project @ 2004-08-31 00:51:31 by jwe] jwe parents: 4920 diff changeset	222
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	223 public:
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	224
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	225 // Convert integer value.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	226 template <class S>
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	227 static T
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	228 truncate_int (const S& value)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	229 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	230 // An exhaustive test whether the max and/or min check can be omitted.
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	231 static const bool t_is_signed = std::numeric_limits<T>::is_signed;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	232 static const bool s_is_signed = std::numeric_limits<S>::is_signed;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	233 static const int t_size = sizeof (T), s_size = sizeof (S);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	234 static const bool omit_chk_min =
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	235 (! s_is_signed \|\| (t_is_signed && t_size >= s_size));
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	236 static const bool omit_chk_max =
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	237 (t_size > s_size \|\| (t_size == s_size
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	238 && (! t_is_signed \|\| s_is_signed)));
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	239 // If the check can be omitted, substitute constant false relation.
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	240 typedef octave_int_cmp_op::cf cf;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	241 typedef octave_int_cmp_op::lt lt;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	242 typedef octave_int_cmp_op::gt gt;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	243 typedef typename if_then_else<omit_chk_min, cf, lt>::result chk_min;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	244 typedef typename if_then_else<omit_chk_max, cf, gt>::result chk_max;
4943 1a499d0c58f5 [project @ 2004-08-31 00:51:31 by jwe] jwe parents: 4920 diff changeset	245
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	246 // Efficiency of the following depends on inlining and dead code
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	247 // elimination, but that should be a piece of cake for most compilers.
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	248 if (chk_min::op (value, static_cast<S> (min_val ())))
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	249 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	250 return min_val ();
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	251 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	252 else if (chk_max::op (value, static_cast<S> (max_val ())))
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	253 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	254 return max_val ();
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	255 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	256 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	257 return static_cast<T> (value);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	258 }
4943 1a499d0c58f5 [project @ 2004-08-31 00:51:31 by jwe] jwe parents: 4920 diff changeset	259
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	260 private:
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	261
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	262 // Computes a real-valued threshold for a max/min check.
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	263 template <class S>
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	264 static S
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	265 compute_threshold (S val, T orig_val)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	266 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	267 val = xround (val); // Fool optimizations (maybe redundant)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	268 // If val is even, but orig_val is odd, we're one unit off.
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	269 if (orig_val % 2 && val / 2 == xround (val / 2))
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	270 // FIXME: is this always correct?
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	271 val *= (static_cast<S>(1) - (std::numeric_limits<S>::epsilon () / 2));
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	272 return val;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	273 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	274
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	275 public:
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	276 // Convert a real number (check NaN and non-int).
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	277 template <class S>
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	278 static T
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	279 convert_real (const S& value)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	280 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	281 // Compute proper thresholds.
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	282 static const S thmin = compute_threshold (static_cast<S> (min_val ()),
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	283 min_val ());
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	284 static const S thmax = compute_threshold (static_cast<S> (max_val ()),
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	285 max_val ());
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	286 if (xisnan (value))
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	287 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	288 return static_cast<T> (0);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	289 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	290 else if (value < thmin)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	291 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	292 return min_val ();
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	293 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	294 else if (value > thmax)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	295 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	296 return max_val ();
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	297 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	298 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	299 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	300 S rvalue = xround (value);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	301 return static_cast<T> (rvalue);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	302 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	303 }
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	304 };
7521 6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	305
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	306 // Saturated (homogeneous) integer arithmetics. The signed and unsigned
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	307 // implementations are significantly different, so we implement another layer
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	308 // and completely specialize. Arithmetics inherits from octave_int_base so that
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	309 // it can use its exceptions and truncation functions.
7521 6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	310
6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	311 template <class T, bool is_signed>
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	312 class octave_int_arith_base
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	313 { };
7521 6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	314
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	315 // Unsigned arithmetics. C++ standard requires it to be modular, so the
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	316 // overflows can be handled efficiently and reliably.
7521 6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	317 template <class T>
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	318 class octave_int_arith_base<T, false> : octave_int_base<T>
7521 6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	319 {
6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	320 public:
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	321
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	322 static T
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	323 abs (T x) { return x; }
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	324
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	325 static T
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	326 signum (T x) { return x ? static_cast<T> (1) : static_cast<T> (0); }
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	327
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	328 // Shifts do not overflow.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	329 static T
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	330 rshift (T x, int n) { return x >> n; }
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	331
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	332 static T
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	333 lshift (T x, int n) { return x << n; }
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	334
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	335 static T
10405 cc69a17ec801 remove integer math warnings Jaroslav Hajek <highegg@gmail.com> parents: 10346 diff changeset	336 minus (T)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	337 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	338 return static_cast<T> (0);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	339 }
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	340
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	341 // the overflow behaviour for unsigned integers is guaranteed by C/C++,
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	342 // so the following should always work.
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	343 static T
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	344 add (T x, T y)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	345 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	346 T u = x + y;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	347 if (u < x)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	348 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	349 u = octave_int_base<T>::max_val ();
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	350 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	351 return u;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	352 }
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	353
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	354 static T
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	355 sub (T x, T y)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	356 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	357 T u = x - y;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	358 if (u > x)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	359 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	360 u = 0;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	361 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	362 return u;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	363 }
7521 6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	364
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	365 // Multiplication is done using promotion to wider integer type. If there is
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	366 // no suitable promotion type, this operation MUST be specialized.
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	367 static T
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	368 mul (T x, T y)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	369 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	370 // Promotion type for multiplication (if exists).
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	371 typedef typename query_integer_type<2*sizeof (T), false>::type mptype;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	372 return octave_int_base<T>::truncate_int (static_cast<mptype> (x)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	373 * static_cast<mptype> (y));
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	374 }
7521 6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	375
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	376 // Division with rounding to nearest. Note that / and % are probably
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	377 // computed by a single instruction.
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	378 static T
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	379 div (T x, T y)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	380 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	381 if (y != 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	382 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	383 T z = x / y, w = x % y;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	384 if (w >= y-w) z += 1;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	385 return z;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	386 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	387 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	388 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	389 return x ? octave_int_base<T>::max_val () : 0;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	390 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	391 }
10436 00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	392
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	393 // Remainder.
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	394 static T
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	395 rem (T x, T y)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	396 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	397 return y != 0 ? x % y : 0;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	398 }
10436 00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	399
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	400 // Modulus. Note the weird y = 0 case for Matlab compatibility.
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	401 static T
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	402 mod (T x, T y)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	403 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	404 return y != 0 ? x % y : x;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	405 }
7521 6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	406 };
6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	407
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	408 #ifdef OCTAVE_INT_USE_LONG_DOUBLE
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	409 // Handle 64-bit multiply using long double
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	410 template <>
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	411 inline uint64_t
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	412 octave_int_arith_base<uint64_t, false>:: mul (uint64_t x, uint64_t y)
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	413 {
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	414 long double p = static_cast<long double> (x) * static_cast<long double> (y);
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	415 if (p > static_cast<long double> (octave_int_base<uint64_t>::max_val ()))
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	416 {
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	417 return octave_int_base<uint64_t>::max_val ();
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	418 }
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	419 else
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	420 return static_cast<uint64_t> (p);
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	421 }
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	422 #else
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	423 // Special handler for 64-bit integer multiply.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	424 template <>
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	425 OCTAVE_API uint64_t
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	426 octave_int_arith_base<uint64_t, false>::mul (uint64_t, uint64_t);
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	427 #endif
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	428
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	429 // Signed integer arithmetics.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	430 // Rationale: If HAVE_FAST_INT_OPS is defined, the following conditions
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	431 // should hold:
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	432 // 1. Signed numbers are represented by twos complement
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	433 // (see <http://en.wikipedia.org/wiki/Two%27s_complement>)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	434 // 2. static_cast to unsigned int counterpart works like interpreting
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	435 // the signed bit pattern as unsigned (and is thus zero-cost).
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	436 // 3. Signed addition and subtraction yield the same bit results as unsigned.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	437 // (We use casts to prevent optimization interference, so there is no
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	438 // need for things like -ftrapv).
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	439 // 4. Bit operations on signed integers work like on unsigned integers,
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	440 // except for the shifts. Shifts are arithmetic.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	441 //
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	442 // The above conditions are satisfied by most modern platforms. If
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	443 // HAVE_FAST_INT_OPS is defined, bit tricks and wraparound arithmetics are used
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	444 // to avoid conditional jumps as much as possible, thus being friendly to
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	445 // modern pipeline processor architectures.
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	446 // Otherwise, we fall back to a bullet-proof code that only uses assumptions
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	447 // guaranteed by the standard.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	448
7521 6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	449 template <class T>
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	450 class octave_int_arith_base<T, true> : octave_int_base<T>
7521 6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	451 {
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	452 // The corresponding unsigned type.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	453 typedef typename query_integer_type<sizeof (T), false>::type UT;
7521 6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	454 public:
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	455
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	456 // Returns 1 for negative number, 0 otherwise.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	457 static T
13734 28ddb3150943 Rename signbit to __signbit, until the problem is fixed in gnulib. Michael Goffioul <michael.goffioul@gmail.com> parents: 13012 diff changeset	458 __signbit (T x)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	459 {
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	460 #ifdef HAVE_FAST_INT_OPS
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	461 return static_cast<UT> (x) >> std::numeric_limits<T>::digits;
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	462 #else
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	463 return (x < 0) ? 1 : 0;
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	464 #endif
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	465 }
7521 6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	466
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	467 static T
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	468 abs (T x)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	469 {
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	470 #ifdef HAVE_FAST_INT_OPS
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	471 // This is close to how GCC does std::abs, but we can't just use std::abs,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	472 // because its behaviour for INT_MIN is undefined and the compiler could
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	473 // discard the following test.
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	474 T m = x >> std::numeric_limits<T>::digits;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	475 T y = (x ^ m) - m;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	476 if (y < 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	477 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	478 y = octave_int_base<T>::max_val ();
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	479 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	480 return y;
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	481 #else
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	482 // -INT_MAX is safe because C++ actually allows only three implementations
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	483 // of integers: sign & magnitude, ones complement and twos complement.
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	484 // The first test will, with modest optimizations, evaluate at compile
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	485 // time, and maybe eliminate the branch completely.
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	486 T y;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	487 if (octave_int_base<T>::min_val () < -octave_int_base<T>::max_val ()
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	488 && x == octave_int_base<T>::min_val ())
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	489 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	490 y = octave_int_base<T>::max_val ();
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	491 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	492 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	493 y = (x < 0) ? -x : x;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	494 return y;
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	495 #endif
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	496 }
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	497
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	498 static T
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	499 signum (T x)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	500 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	501 // With modest optimizations, this will compile without a jump.
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	502 return ((x > 0) ? 1 : 0) - __signbit (x);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	503 }
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	504
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	505 // FIXME: we do not have an authority what signed shifts should
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	506 // exactly do, so we define them the easy way. Note that Matlab does
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	507 // not define signed shifts.
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	508
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	509 static T
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	510 rshift (T x, int n) { return x >> n; }
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	511
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	512 static T
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	513 lshift (T x, int n) { return x << n; }
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	514
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	515 // Minus has problems similar to abs.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	516 static T
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	517 minus (T x)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	518 {
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	519 #ifdef HAVE_FAST_INT_OPS
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	520 T y = -x;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	521 if (y == octave_int_base<T>::min_val ())
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	522 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	523 --y;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	524 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	525 return y;
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	526 #else
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	527 T y;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	528 if (octave_int_base<T>::min_val () < -octave_int_base<T>::max_val ()
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	529 && x == octave_int_base<T>::min_val ())
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	530 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	531 y = octave_int_base<T>::max_val ();
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	532 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	533 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	534 y = -x;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	535 return y;
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	536 #endif
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	537 }
7521 6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	538
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	539 static T
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	540 add (T x, T y)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	541 {
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	542 #ifdef HAVE_FAST_INT_OPS
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	543 // The typecasts do nothing, but they are here to prevent an optimizing
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	544 // compiler from interfering. Also, the signed operations on small types
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	545 // actually return int.
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	546 T u = static_cast<UT> (x) + static_cast<UT> (y);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	547 T ux = u ^ x, uy = u ^ y;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	548 if ((ux & uy) < 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	549 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	550 u = octave_int_base<T>::max_val () + __signbit (~u);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	551 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	552 return u;
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	553 #else
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	554 // We shall carefully avoid anything that may overflow.
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	555 T u;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	556 if (y < 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	557 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	558 if (x < octave_int_base<T>::min_val () - y)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	559 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	560 u = octave_int_base<T>::min_val ();
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	561 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	562 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	563 u = x + y;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	564 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	565 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	566 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	567 if (x > octave_int_base<T>::max_val () - y)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	568 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	569 u = octave_int_base<T>::max_val ();
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	570 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	571 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	572 u = x + y;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	573 }
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	574
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	575 return u;
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	576 #endif
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	577 }
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	578
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	579 // This is very similar to addition.
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	580 static T
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	581 sub (T x, T y)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	582 {
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	583 #ifdef HAVE_FAST_INT_OPS
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	584 // The typecasts do nothing, but they are here to prevent an optimizing
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	585 // compiler from interfering. Also, the signed operations on small types
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	586 // actually return int.
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	587 T u = static_cast<UT> (x) - static_cast<UT> (y);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	588 T ux = u ^ x, uy = u ^ ~y;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	589 if ((ux & uy) < 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	590 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	591 u = octave_int_base<T>::max_val () + __signbit (~u);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	592 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	593 return u;
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	594 #else
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	595 // We shall carefully avoid anything that may overflow.
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	596 T u;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	597 if (y < 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	598 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	599 if (x > octave_int_base<T>::max_val () + y)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	600 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	601 u = octave_int_base<T>::max_val ();
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	602 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	603 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	604 u = x - y;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	605 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	606 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	607 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	608 if (x < octave_int_base<T>::min_val () + y)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	609 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	610 u = octave_int_base<T>::min_val ();
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	611 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	612 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	613 u = x - y;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	614 }
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	615
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	616 return u;
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	617 #endif
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	618 }
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	619
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	620 // Multiplication is done using promotion to wider integer type. If there is
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	621 // no suitable promotion type, this operation MUST be specialized.
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	622 static T
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	623 mul (T x, T y)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	624 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	625 // Promotion type for multiplication (if exists).
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	626 typedef typename query_integer_type<2*sizeof (T), true>::type mptype;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	627 return octave_int_base<T>::truncate_int (static_cast<mptype> (x)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	628 * static_cast<mptype> (y));
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	629 }
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	630
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	631 // Division.
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	632 static T
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	633 div (T x, T y)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	634 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	635 T z;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	636 if (y == 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	637 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	638 if (x < 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	639 z = octave_int_base<T>::min_val ();
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	640 else if (x != 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	641 z = octave_int_base<T>::max_val ();
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	642 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	643 z = 0;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	644 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	645 else if (y < 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	646 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	647 // This is a special case that overflows as well.
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	648 if (y == -1 && x == octave_int_base<T>::min_val ())
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	649 {
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	650 z = octave_int_base<T>::max_val ();
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	651 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	652 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	653 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	654 z = x / y;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	655 // Can't overflow, but std::abs (x) can!
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	656 T w = -octave_int_abs (x % y);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	657 if (w <= y - w)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	658 z -= 1 - (__signbit (x) << 1);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	659 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	660 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	661 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	662 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	663 z = x / y;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	664 // FIXME: this is a workaround due to MSVC's absence of
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	665 // std::abs (int64_t). The call to octave_int_abs can't
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	666 // overflow, but std::abs (x) can!
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	667 T w = octave_int_abs (x % y);
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	668
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	669 if (w >= y - w)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	670 z += 1 - (__signbit (x) << 1);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	671 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	672 return z;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	673 }
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	674
10436 00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	675 // Remainder.
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	676 static T
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	677 rem (T x, T y)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	678 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	679 return y != 0 ? x % y : 0;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	680 }
10436 00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	681
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	682 // Modulus. Note the weird y = 0 case for Matlab compatibility.
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	683 static T
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	684 mod (T x, T y)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	685 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	686 if (y != 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	687 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	688 T r = x % y;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	689 return ((r < 0) != (y < 0)) ? r + y : r;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	690 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	691 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	692 return x;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	693 }
7521 6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	694 };
6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	695
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	696 #ifdef OCTAVE_INT_USE_LONG_DOUBLE
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	697 // Handle 64-bit multiply using long double
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	698 template <>
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	699 inline int64_t
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	700 octave_int_arith_base<int64_t, true>:: mul (int64_t x, int64_t y)
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	701 {
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	702 long double p = static_cast<long double> (x) * static_cast<long double> (y);
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	703 // NOTE: We could maybe do it with a single branch if HAVE_FAST_INT_OPS,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	704 // but it would require one more runtime conversion, so the question is
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	705 // whether it would really be faster.
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	706 if (p > static_cast<long double> (octave_int_base<int64_t>::max_val ()))
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	707 {
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	708 return octave_int_base<int64_t>::max_val ();
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	709 }
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	710 else if (p < static_cast<long double> (octave_int_base<int64_t>::min_val ()))
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	711 {
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	712 return octave_int_base<int64_t>::min_val ();
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	713 }
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	714 else
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	715 return static_cast<int64_t> (p);
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	716 }
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	717 #else
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	718 // Special handler for 64-bit integer multiply.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	719 template <>
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	720 OCTAVE_API int64_t
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	721 octave_int_arith_base<int64_t, true>::mul (int64_t, int64_t);
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	722 #endif
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	723
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	724 // This class simply selects the proper arithmetics.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	725 template<class T>
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	726 class octave_int_arith
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	727 : public octave_int_arith_base<T, std::numeric_limits<T>::is_signed>
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	728 { };
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	729
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	730 template <class T>
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	731 class
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	732 octave_int : public octave_int_base<T>
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	733 {
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	734 public:
4943 1a499d0c58f5 [project @ 2004-08-31 00:51:31 by jwe] jwe parents: 4920 diff changeset	735 typedef T val_type;
1a499d0c58f5 [project @ 2004-08-31 00:51:31 by jwe] jwe parents: 4920 diff changeset	736
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	737 octave_int (void) : ival () { }
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	738
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	739 octave_int (T i) : ival (i) { }
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	740
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	741 octave_int (double d) : ival (octave_int_base<T>::convert_real (d)) { }
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	742
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	743 octave_int (float d) : ival (octave_int_base<T>::convert_real (d)) { }
6402 fe9817a6ee98 [project @ 2007-03-13 02:25:31 by jwe] jwe parents: 6108 diff changeset	744
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	745 #ifdef OCTAVE_INT_USE_LONG_DOUBLE
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	746 octave_int (long double d) : ival (octave_int_base<T>::convert_real (d)) { }
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	747 #endif
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	748
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	749 octave_int (bool b) : ival (b) { }
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	750
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	751 template <class U>
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	752 octave_int (const U& i) : ival(octave_int_base<T>::truncate_int (i)) { }
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	753
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	754 template <class U>
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	755 octave_int (const octave_int<U>& i)
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	756 : ival (octave_int_base<T>::truncate_int (i.value ())) { }
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	757
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	758 octave_int (const octave_int<T>& i) : ival (i.ival) { }
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	759
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	760 octave_int& operator = (const octave_int<T>& i)
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	761 {
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	762 ival = i.ival;
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	763 return *this;
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	764 }
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	765
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	766 T value (void) const { return ival; }
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	767
4949 f6b63ff1119b [project @ 2004-08-31 19:17:44 by jwe] jwe parents: 4943 diff changeset	768 const unsigned char * iptr (void) const
f6b63ff1119b [project @ 2004-08-31 19:17:44 by jwe] jwe parents: 4943 diff changeset	769 { return reinterpret_cast<const unsigned char *> (& ival); }
f6b63ff1119b [project @ 2004-08-31 19:17:44 by jwe] jwe parents: 4943 diff changeset	770
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	771 bool operator ! (void) const { return ! ival; }
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	772
7198 4555c116b420 [project @ 2007-11-27 03:06:10 by jwe] jwe parents: 7177 diff changeset	773 bool bool_value (void) const { return static_cast<bool> (value ()); }
4555c116b420 [project @ 2007-11-27 03:06:10 by jwe] jwe parents: 7177 diff changeset	774
4555c116b420 [project @ 2007-11-27 03:06:10 by jwe] jwe parents: 7177 diff changeset	775 char char_value (void) const { return static_cast<char> (value ()); }
4555c116b420 [project @ 2007-11-27 03:06:10 by jwe] jwe parents: 7177 diff changeset	776
4555c116b420 [project @ 2007-11-27 03:06:10 by jwe] jwe parents: 7177 diff changeset	777 double double_value (void) const { return static_cast<double> (value ()); }
4555c116b420 [project @ 2007-11-27 03:06:10 by jwe] jwe parents: 7177 diff changeset	778
4555c116b420 [project @ 2007-11-27 03:06:10 by jwe] jwe parents: 7177 diff changeset	779 float float_value (void) const { return static_cast<float> (value ()); }
4555c116b420 [project @ 2007-11-27 03:06:10 by jwe] jwe parents: 7177 diff changeset	780
7177 57d2546ad8d5 [project @ 2007-11-14 22:21:35 by jwe] jwe parents: 7017 diff changeset	781 operator T (void) const { return value (); }
57d2546ad8d5 [project @ 2007-11-14 22:21:35 by jwe] jwe parents: 7017 diff changeset	782
7198 4555c116b420 [project @ 2007-11-27 03:06:10 by jwe] jwe parents: 7177 diff changeset	783 // char and bool operators intentionally omitted.
5533 667ad2becb63 [project @ 2005-11-10 21:40:48 by jwe] jwe parents: 5420 diff changeset	784
7198 4555c116b420 [project @ 2007-11-27 03:06:10 by jwe] jwe parents: 7177 diff changeset	785 operator double (void) const { return double_value (); }
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	786
7198 4555c116b420 [project @ 2007-11-27 03:06:10 by jwe] jwe parents: 7177 diff changeset	787 operator float (void) const { return float_value (); }
5030 160365410ad4 [project @ 2004-09-24 03:22:23 by jwe] jwe parents: 5029 diff changeset	788
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	789 octave_int<T>
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	790 operator + () const
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	791 { return *this; }
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	792
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	793 // unary operators & mappers
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	794 #define OCTAVE_INT_UN_OP(OPNAME,NAME) \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	795 inline octave_int<T> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	796 OPNAME () const \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	797 { return octave_int_arith<T>::NAME (ival); }
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	798
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	799 OCTAVE_INT_UN_OP(operator -, minus)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	800 OCTAVE_INT_UN_OP(abs, abs)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	801 OCTAVE_INT_UN_OP(signum, signum)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	802
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	803 #undef OCTAVE_INT_UN_OP
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	804
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	805 // Homogeneous binary integer operations.
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	806 #define OCTAVE_INT_BIN_OP(OP, NAME, ARGT) \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	807 inline octave_int<T> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	808 operator OP (const ARGT& y) const \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	809 { return octave_int_arith<T>::NAME (ival, y); } \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	810 inline octave_int<T>& \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	811 operator OP##= (const ARGT& y) \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	812 { \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	813 ival = octave_int_arith<T>::NAME (ival, y); \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	814 return *this; \
4952 bfd57b466752 [project @ 2004-09-01 00:49:05 by jwe] jwe parents: 4949 diff changeset	815 }
bfd57b466752 [project @ 2004-09-01 00:49:05 by jwe] jwe parents: 4949 diff changeset	816
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	817 OCTAVE_INT_BIN_OP(+, add, octave_int<T>)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	818 OCTAVE_INT_BIN_OP(-, sub, octave_int<T>)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	819 OCTAVE_INT_BIN_OP(*, mul, octave_int<T>)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	820 OCTAVE_INT_BIN_OP(/, div, octave_int<T>)
10436 00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	821 OCTAVE_INT_BIN_OP(%, rem, octave_int<T>)
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	822 OCTAVE_INT_BIN_OP(<<, lshift, int)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	823 OCTAVE_INT_BIN_OP(>>, rshift, int)
4952 bfd57b466752 [project @ 2004-09-01 00:49:05 by jwe] jwe parents: 4949 diff changeset	824
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	825 #undef OCTAVE_INT_BIN_OP
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7198 diff changeset	826
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	827 static octave_int<T> min (void) { return std::numeric_limits<T>::min (); }
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	828 static octave_int<T> max (void) { return std::numeric_limits<T>::max (); }
4906 6754342ef7ad [project @ 2004-06-23 11:11:50 by jwe] jwe parents: 4902 diff changeset	829
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	830 static int nbits (void) { return std::numeric_limits<T>::digits; }
4909 5c9e36402f17 [project @ 2004-07-12 17:08:24 by jwe] jwe parents: 4906 diff changeset	831
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14168 diff changeset	832 static int byte_size (void) { return sizeof (T); }
4949 f6b63ff1119b [project @ 2004-08-31 19:17:44 by jwe] jwe parents: 4943 diff changeset	833
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	834 static const char *type_name ();
7997 2b8952e133c9 implement checked conversions between integers Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	835
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	836 // The following are provided for convenience.
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	837 static const octave_int zero, one;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	838
5900 c20eb7330d13 [project @ 2006-07-22 08:31:16 by jwe] jwe parents: 5898 diff changeset	839 // Unsafe. This function exists to support the MEX interface.
c20eb7330d13 [project @ 2006-07-22 08:31:16 by jwe] jwe parents: 5898 diff changeset	840 // You should not use it anywhere else.
c20eb7330d13 [project @ 2006-07-22 08:31:16 by jwe] jwe parents: 5898 diff changeset	841 void mex_get_data (void) const { return const_cast<T > (&ival); }
c20eb7330d13 [project @ 2006-07-22 08:31:16 by jwe] jwe parents: 5898 diff changeset	842
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	843 private:
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	844
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	845 T ival;
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	846 };
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	847
10436 00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	848 template <class T>
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	849 inline octave_int<T>
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	850 rem (const octave_int<T>& x, const octave_int<T>& y)
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	851 { return octave_int_arith<T>::rem (x.value (), y.value ()); }
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	852
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	853 template <class T>
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	854 inline octave_int<T>
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	855 mod (const octave_int<T>& x, const octave_int<T>& y)
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	856 { return octave_int_arith<T>::mod (x.value (), y.value ()); }
00219bdd2d17 implement built-in rem and mod Jaroslav Hajek <highegg@gmail.com> parents: 10405 diff changeset	857
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	858 // No mixed integer binary operations!
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	859
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	860 template <class T>
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	861 inline bool
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	862 xisnan (const octave_int<T>&)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	863 { return false; }
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	864
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	865 // FIXME: can/should any of these be inline?
7997 2b8952e133c9 implement checked conversions between integers Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	866
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	867 template <class T>
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	868 extern OCTAVE_API octave_int<T>
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	869 pow (const octave_int<T>&, const octave_int<T>&);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	870
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	871 template <class T>
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	872 extern OCTAVE_API octave_int<T>
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	873 pow (const double& a, const octave_int<T>& b);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	874
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	875 template <class T>
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	876 extern OCTAVE_API octave_int<T>
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	877 pow (const octave_int<T>& a, const double& b);
7922 935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7789 diff changeset	878
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7789 diff changeset	879 template <class T>
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	880 extern OCTAVE_API octave_int<T>
13012 15eefbd9d4e8 Implement a few missing automatic bsxfun power operators Jordi Gutiérrez Hermoso <jordigh@gmail.com> parents: 11586 diff changeset	881 pow (const float& a, const octave_int<T>& b);
15eefbd9d4e8 Implement a few missing automatic bsxfun power operators Jordi Gutiérrez Hermoso <jordigh@gmail.com> parents: 11586 diff changeset	882
15eefbd9d4e8 Implement a few missing automatic bsxfun power operators Jordi Gutiérrez Hermoso <jordigh@gmail.com> parents: 11586 diff changeset	883 template <class T>
15eefbd9d4e8 Implement a few missing automatic bsxfun power operators Jordi Gutiérrez Hermoso <jordigh@gmail.com> parents: 11586 diff changeset	884 extern OCTAVE_API octave_int<T>
15eefbd9d4e8 Implement a few missing automatic bsxfun power operators Jordi Gutiérrez Hermoso <jordigh@gmail.com> parents: 11586 diff changeset	885 pow (const octave_int<T>& a, const float& b);
15eefbd9d4e8 Implement a few missing automatic bsxfun power operators Jordi Gutiérrez Hermoso <jordigh@gmail.com> parents: 11586 diff changeset	886
15eefbd9d4e8 Implement a few missing automatic bsxfun power operators Jordi Gutiérrez Hermoso <jordigh@gmail.com> parents: 11586 diff changeset	887 // FIXME: Do we really need a differently named single-precision
15eefbd9d4e8 Implement a few missing automatic bsxfun power operators Jordi Gutiérrez Hermoso <jordigh@gmail.com> parents: 11586 diff changeset	888 // function integer power function here instead of an overloaded
15eefbd9d4e8 Implement a few missing automatic bsxfun power operators Jordi Gutiérrez Hermoso <jordigh@gmail.com> parents: 11586 diff changeset	889 // one?
15eefbd9d4e8 Implement a few missing automatic bsxfun power operators Jordi Gutiérrez Hermoso <jordigh@gmail.com> parents: 11586 diff changeset	890 template <class T>
15eefbd9d4e8 Implement a few missing automatic bsxfun power operators Jordi Gutiérrez Hermoso <jordigh@gmail.com> parents: 11586 diff changeset	891 extern OCTAVE_API octave_int<T>
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	892 powf (const float& a, const octave_int<T>& b);
4952 bfd57b466752 [project @ 2004-09-01 00:49:05 by jwe] jwe parents: 4949 diff changeset	893
bfd57b466752 [project @ 2004-09-01 00:49:05 by jwe] jwe parents: 4949 diff changeset	894 template <class T>
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	895 extern OCTAVE_API octave_int<T>
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	896 powf (const octave_int<T>& a, const float& b);
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	897
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	898 // Binary relations
4953 7a3a480e8645 [project @ 2004-09-01 21:10:28 by jwe] jwe parents: 4952 diff changeset	899
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	900 #define OCTAVE_INT_CMP_OP(OP, NAME) \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	901 template<class T1, class T2> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	902 inline bool \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	903 operator OP (const octave_int<T1>& x, const octave_int<T2>& y) \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	904 { return octave_int_cmp_op::op<octave_int_cmp_op::NAME, T1, T2> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	905 (x.value (), y.value ()); }
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	906
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	907 OCTAVE_INT_CMP_OP (<, lt)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	908 OCTAVE_INT_CMP_OP (<=, le)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	909 OCTAVE_INT_CMP_OP (>, gt)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	910 OCTAVE_INT_CMP_OP (>=, ge)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	911 OCTAVE_INT_CMP_OP (==, eq)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	912 OCTAVE_INT_CMP_OP (!=, ne)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	913
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	914 #undef OCTAVE_INT_CMP_OP
4953 7a3a480e8645 [project @ 2004-09-01 21:10:28 by jwe] jwe parents: 4952 diff changeset	915
7a3a480e8645 [project @ 2004-09-01 21:10:28 by jwe] jwe parents: 4952 diff changeset	916 template <class T>
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	917 inline std::ostream&
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	918 operator << (std::ostream& os, const octave_int<T>& ival)
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	919 {
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	920 os << ival.value ();
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	921 return os;
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	922 }
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	923
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	924 template <class T>
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	925 inline std::istream&
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	926 operator >> (std::istream& is, octave_int<T>& ival)
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	927 {
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	928 T tmp = 0;
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	929 is >> tmp;
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	930 ival = tmp;
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	931 return is;
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	932 }
bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	933
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	934 // Bitwise operations
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7598 diff changeset	935
4906 6754342ef7ad [project @ 2004-06-23 11:11:50 by jwe] jwe parents: 4902 diff changeset	936 #define OCTAVE_INT_BITCMP_OP(OP) \
6754342ef7ad [project @ 2004-06-23 11:11:50 by jwe] jwe parents: 4902 diff changeset	937 template <class T> \
6754342ef7ad [project @ 2004-06-23 11:11:50 by jwe] jwe parents: 4902 diff changeset	938 octave_int<T> \
6754342ef7ad [project @ 2004-06-23 11:11:50 by jwe] jwe parents: 4902 diff changeset	939 operator OP (const octave_int<T>& x, const octave_int<T>& y) \
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	940 { return x.value () OP y.value (); }
4906 6754342ef7ad [project @ 2004-06-23 11:11:50 by jwe] jwe parents: 4902 diff changeset	941
6754342ef7ad [project @ 2004-06-23 11:11:50 by jwe] jwe parents: 4902 diff changeset	942 OCTAVE_INT_BITCMP_OP (&)
6754342ef7ad [project @ 2004-06-23 11:11:50 by jwe] jwe parents: 4902 diff changeset	943 OCTAVE_INT_BITCMP_OP (\|)
6754342ef7ad [project @ 2004-06-23 11:11:50 by jwe] jwe parents: 4902 diff changeset	944 OCTAVE_INT_BITCMP_OP (^)
6754342ef7ad [project @ 2004-06-23 11:11:50 by jwe] jwe parents: 4902 diff changeset	945
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	946 #undef OCTAVE_INT_BITCMP_OP
4906 6754342ef7ad [project @ 2004-06-23 11:11:50 by jwe] jwe parents: 4902 diff changeset	947
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	948 // General bit shift.
4909 5c9e36402f17 [project @ 2004-07-12 17:08:24 by jwe] jwe parents: 4906 diff changeset	949 template <class T>
5c9e36402f17 [project @ 2004-07-12 17:08:24 by jwe] jwe parents: 4906 diff changeset	950 octave_int<T>
4920 b22a7a1db0d5 [project @ 2004-07-27 18:15:25 by jwe] jwe parents: 4919 diff changeset	951 bitshift (const octave_int<T>& a, int n,
10312 cbc402e64d83 untabify liboctave header files John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	952 const octave_int<T>& mask = std::numeric_limits<T>::max ())
4909 5c9e36402f17 [project @ 2004-07-12 17:08:24 by jwe] jwe parents: 4906 diff changeset	953 {
5c9e36402f17 [project @ 2004-07-12 17:08:24 by jwe] jwe parents: 4906 diff changeset	954 if (n > 0)
4952 bfd57b466752 [project @ 2004-09-01 00:49:05 by jwe] jwe parents: 4949 diff changeset	955 return (a << n) & mask;
4909 5c9e36402f17 [project @ 2004-07-12 17:08:24 by jwe] jwe parents: 4906 diff changeset	956 else if (n < 0)
4952 bfd57b466752 [project @ 2004-09-01 00:49:05 by jwe] jwe parents: 4949 diff changeset	957 return (a >> -n) & mask;
4909 5c9e36402f17 [project @ 2004-07-12 17:08:24 by jwe] jwe parents: 4906 diff changeset	958 else
8963 d1eab3ddb02d oct-inttypes.h (bitshift): apply mask even if not shifting John W. Eaton <jwe@octave.org> parents: 8950 diff changeset	959 return a & mask;
4909 5c9e36402f17 [project @ 2004-07-12 17:08:24 by jwe] jwe parents: 4906 diff changeset	960 }
5c9e36402f17 [project @ 2004-07-12 17:08:24 by jwe] jwe parents: 4906 diff changeset	961
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	962 typedef octave_int<int8_t> octave_int8;
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	963 typedef octave_int<int16_t> octave_int16;
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	964 typedef octave_int<int32_t> octave_int32;
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	965 typedef octave_int<int64_t> octave_int64;
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	966
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	967 typedef octave_int<uint8_t> octave_uint8;
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	968 typedef octave_int<uint16_t> octave_uint16;
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	969 typedef octave_int<uint32_t> octave_uint32;
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	970 typedef octave_int<uint64_t> octave_uint64;
5072 97b62f0c1bee [project @ 2004-11-09 05:51:30 by jwe] jwe parents: 5030 diff changeset	971
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	972 #define OCTAVE_INT_DOUBLE_BIN_OP0(OP) \
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	973 template <class T> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	974 inline octave_int<T> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	975 operator OP (const octave_int<T>& x, const double& y) \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	976 { return octave_int<T> (static_cast<double> (x) OP y); } \
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	977 template <class T> \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	978 inline octave_int<T> \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	979 operator OP (const double& x, const octave_int<T>& y) \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	980 { return octave_int<T> (x OP static_cast<double> (y)); } \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	981
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	982 #ifdef OCTAVE_INT_USE_LONG_DOUBLE
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	983 // Handle mixed op using long double
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	984 #define OCTAVE_INT_DOUBLE_BIN_OP(OP) \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	985 OCTAVE_INT_DOUBLE_BIN_OP0(OP) \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	986 template <> \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	987 inline octave_int64 \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	988 operator OP (const double& x, const octave_int64& y) \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	989 { return octave_int64 (x OP static_cast<long double> (y.value ())); } \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	990 template <> \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	991 inline octave_uint64 \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	992 operator OP (const double& x, const octave_uint64& y) \
8191 9cb73236e552 fix uint64 mixed operations Jaroslav Hajek <highegg@gmail.com> parents: 8185 diff changeset	993 { return octave_uint64 (x OP static_cast<long double> (y.value ())); } \
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	994 template <> \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	995 inline octave_int64 \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	996 operator OP (const octave_int64& x, const double& y) \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	997 { return octave_int64 (static_cast<long double> (x.value ()) OP y); } \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	998 template <> \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	999 inline octave_uint64 \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1000 operator OP (const octave_uint64& x, const double& y) \
8191 9cb73236e552 fix uint64 mixed operations Jaroslav Hajek <highegg@gmail.com> parents: 8185 diff changeset	1001 { return octave_uint64 (static_cast<long double> (x.value ()) OP y); }
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1002
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1003 #else
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1004 // external handlers
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1005 #define OCTAVE_INT_DOUBLE_BIN_OP(OP) \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1006 OCTAVE_INT_DOUBLE_BIN_OP0(OP) \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1007 template <> \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1008 OCTAVE_API octave_int64 \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1009 operator OP (const double&, const octave_int64&); \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1010 template <> \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1011 OCTAVE_API octave_uint64 \
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1012 operator OP (const double&, const octave_uint64&); \
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1013 template <> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1014 OCTAVE_API octave_int64 \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1015 operator OP (const octave_int64&, const double&); \
7521 6f10bbb2854a avoid some GCC warnings for unsigned comparisons John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	1016 template <> \
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1017 OCTAVE_API octave_uint64 \
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1018 operator OP (const octave_uint64&, const double&);
5072 97b62f0c1bee [project @ 2004-11-09 05:51:30 by jwe] jwe parents: 5030 diff changeset	1019
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1020 #endif
5072 97b62f0c1bee [project @ 2004-11-09 05:51:30 by jwe] jwe parents: 5030 diff changeset	1021
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1022 OCTAVE_INT_DOUBLE_BIN_OP (+)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1023 OCTAVE_INT_DOUBLE_BIN_OP (-)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1024 OCTAVE_INT_DOUBLE_BIN_OP (*)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1025 OCTAVE_INT_DOUBLE_BIN_OP (/)
5072 97b62f0c1bee [project @ 2004-11-09 05:51:30 by jwe] jwe parents: 5030 diff changeset	1026
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1027 #undef OCTAVE_INT_DOUBLE_BIN_OP0
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1028 #undef OCTAVE_INT_DOUBLE_BIN_OP
5072 97b62f0c1bee [project @ 2004-11-09 05:51:30 by jwe] jwe parents: 5030 diff changeset	1029
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1030 #define OCTAVE_INT_DOUBLE_CMP_OP(OP,NAME) \
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1031 template <class T> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1032 inline bool \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1033 operator OP (const octave_int<T>& x, const double& y) \
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1034 { return octave_int_cmp_op::mop<octave_int_cmp_op::NAME> (x.value (), y); } \
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1035 template <class T> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1036 inline bool \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1037 operator OP (const double& x, const octave_int<T>& y) \
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1038 { return octave_int_cmp_op::mop<octave_int_cmp_op::NAME> (x, y.value ()); }
5072 97b62f0c1bee [project @ 2004-11-09 05:51:30 by jwe] jwe parents: 5030 diff changeset	1039
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1040 OCTAVE_INT_DOUBLE_CMP_OP (<, lt)
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1041 OCTAVE_INT_DOUBLE_CMP_OP (<=, le)
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1042 OCTAVE_INT_DOUBLE_CMP_OP (>=, ge)
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1043 OCTAVE_INT_DOUBLE_CMP_OP (>, gt)
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1044 OCTAVE_INT_DOUBLE_CMP_OP (==, eq)
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1045 OCTAVE_INT_DOUBLE_CMP_OP (!=, ne)
5072 97b62f0c1bee [project @ 2004-11-09 05:51:30 by jwe] jwe parents: 5030 diff changeset	1046
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1047 #undef OCTAVE_INT_DOUBLE_CMP_OP
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1048
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1049 // Floats are handled by simply converting to doubles.
5072 97b62f0c1bee [project @ 2004-11-09 05:51:30 by jwe] jwe parents: 5030 diff changeset	1050
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1051 #define OCTAVE_INT_FLOAT_BIN_OP(OP) \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1052 template <class T> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1053 inline octave_int<T> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1054 operator OP (const octave_int<T>& x, float y) \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1055 { return x OP static_cast<double> (y); } \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1056 template <class T> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1057 inline octave_int<T> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1058 operator OP (float x, const octave_int<T>& y) \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1059 { return static_cast<double> (x) OP y; }
5072 97b62f0c1bee [project @ 2004-11-09 05:51:30 by jwe] jwe parents: 5030 diff changeset	1060
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1061 OCTAVE_INT_FLOAT_BIN_OP (+)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1062 OCTAVE_INT_FLOAT_BIN_OP (-)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1063 OCTAVE_INT_FLOAT_BIN_OP (*)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1064 OCTAVE_INT_FLOAT_BIN_OP (/)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1065
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1066 #undef OCTAVE_INT_FLOAT_BIN_OP
5072 97b62f0c1bee [project @ 2004-11-09 05:51:30 by jwe] jwe parents: 5030 diff changeset	1067
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1068 #define OCTAVE_INT_FLOAT_CMP_OP(OP) \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1069 template <class T> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1070 inline bool \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1071 operator OP (const octave_int<T>& x, const float& y) \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1072 { return x OP static_cast<double> (y); } \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1073 template <class T> \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1074 bool \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1075 operator OP (const float& x, const octave_int<T>& y) \
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1076 { return static_cast<double> (x) OP y; }
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	1077
8169 66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1078 OCTAVE_INT_FLOAT_CMP_OP (<)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1079 OCTAVE_INT_FLOAT_CMP_OP (<=)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1080 OCTAVE_INT_FLOAT_CMP_OP (>=)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1081 OCTAVE_INT_FLOAT_CMP_OP (>)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1082 OCTAVE_INT_FLOAT_CMP_OP (==)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1083 OCTAVE_INT_FLOAT_CMP_OP (!=)
66bc6f9b4f72 rewrite integer arithmetics and conversions Jaroslav Hajek <highegg@gmail.com> parents: 8104 diff changeset	1084
8185 69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1085 #undef OCTAVE_INT_FLOAT_CMP_OP
69c5cce38c29 implement 64-bit arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8169 diff changeset	1086
9743 26abff55f6fe optimize bsxfun for common built-in operations Jaroslav Hajek <highegg@gmail.com> parents: 9648 diff changeset	1087 template <class T>
26abff55f6fe optimize bsxfun for common built-in operations Jaroslav Hajek <highegg@gmail.com> parents: 9648 diff changeset	1088 octave_int<T>
26abff55f6fe optimize bsxfun for common built-in operations Jaroslav Hajek <highegg@gmail.com> parents: 9648 diff changeset	1089 xmax (const octave_int<T>& x, const octave_int<T>& y)
26abff55f6fe optimize bsxfun for common built-in operations Jaroslav Hajek <highegg@gmail.com> parents: 9648 diff changeset	1090 {
26abff55f6fe optimize bsxfun for common built-in operations Jaroslav Hajek <highegg@gmail.com> parents: 9648 diff changeset	1091 const T xv = x.value (), yv = y.value ();
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1092 return octave_int<T> (xv >= yv ? xv : yv);
9743 26abff55f6fe optimize bsxfun for common built-in operations Jaroslav Hajek <highegg@gmail.com> parents: 9648 diff changeset	1093 }
26abff55f6fe optimize bsxfun for common built-in operations Jaroslav Hajek <highegg@gmail.com> parents: 9648 diff changeset	1094
26abff55f6fe optimize bsxfun for common built-in operations Jaroslav Hajek <highegg@gmail.com> parents: 9648 diff changeset	1095 template <class T>
26abff55f6fe optimize bsxfun for common built-in operations Jaroslav Hajek <highegg@gmail.com> parents: 9648 diff changeset	1096 octave_int<T>
26abff55f6fe optimize bsxfun for common built-in operations Jaroslav Hajek <highegg@gmail.com> parents: 9648 diff changeset	1097 xmin (const octave_int<T>& x, const octave_int<T>& y)
26abff55f6fe optimize bsxfun for common built-in operations Jaroslav Hajek <highegg@gmail.com> parents: 9648 diff changeset	1098 {
26abff55f6fe optimize bsxfun for common built-in operations Jaroslav Hajek <highegg@gmail.com> parents: 9648 diff changeset	1099 const T xv = x.value (), yv = y.value ();
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1100 return octave_int<T> (xv <= yv ? xv : yv);
9743 26abff55f6fe optimize bsxfun for common built-in operations Jaroslav Hajek <highegg@gmail.com> parents: 9648 diff changeset	1101 }
26abff55f6fe optimize bsxfun for common built-in operations Jaroslav Hajek <highegg@gmail.com> parents: 9648 diff changeset	1102
4902 bd043a433918 [project @ 2004-06-14 18:46:20 by jwe] jwe parents: diff changeset	1103 #endif

Mercurial > octave

annotate liboctave/util/oct-inttypes.h @ 17822:ebb3ef964372