Mercurial > octave
view liboctave/util/lo-utils.cc @ 31607:aac27ad79be6 stable
maint: Re-indent code after switch to using namespace macros.
* build-env.h, build-env.in.cc, Cell.h, __betainc__.cc, __eigs__.cc,
__ftp__.cc, __ichol__.cc, __ilu__.cc, __isprimelarge__.cc, __magick_read__.cc,
__pchip_deriv__.cc, amd.cc, base-text-renderer.cc, base-text-renderer.h,
besselj.cc, bitfcns.cc, bsxfun.cc, c-file-ptr-stream.h, call-stack.cc,
call-stack.h, ccolamd.cc, cellfun.cc, chol.cc, colamd.cc, dasrt.cc, data.cc,
debug.cc, defaults.cc, defaults.h, det.cc, display.cc, display.h, dlmread.cc,
dynamic-ld.cc, dynamic-ld.h, ellipj.cc, environment.cc, environment.h,
error.cc, error.h, errwarn.h, event-manager.cc, event-manager.h,
event-queue.cc, event-queue.h, fcn-info.cc, fcn-info.h, fft.cc, fft2.cc,
file-io.cc, filter.cc, find.cc, ft-text-renderer.cc, ft-text-renderer.h,
gcd.cc, gl-render.cc, gl-render.h, gl2ps-print.cc, gl2ps-print.h,
graphics-toolkit.cc, graphics-toolkit.h, graphics.cc, gsvd.cc, gtk-manager.cc,
gtk-manager.h, help.cc, help.h, hook-fcn.cc, hook-fcn.h, input.cc, input.h,
interpreter-private.cc, interpreter-private.h, interpreter.cc, interpreter.h,
inv.cc, jsondecode.cc, jsonencode.cc, latex-text-renderer.cc,
latex-text-renderer.h, load-path.cc, load-path.h, load-save.cc, load-save.h,
lookup.cc, ls-hdf5.cc, ls-mat4.cc, ls-mat5.cc, lsode.cc, lu.cc, mappers.cc,
matrix_type.cc, max.cc, mex.cc, mexproto.h, mxarray.h, mxtypes.in.h,
oct-errno.in.cc, oct-hdf5-types.cc, oct-hist.cc, oct-hist.h, oct-map.cc,
oct-map.h, oct-opengl.h, oct-prcstrm.h, oct-process.cc, oct-process.h,
oct-stdstrm.h, oct-stream.cc, oct-stream.h, oct-strstrm.h,
octave-default-image.h, ordqz.cc, ordschur.cc, pager.cc, pager.h, pinv.cc,
pow2.cc, pr-output.cc, psi.cc, qr.cc, quadcc.cc, rand.cc, regexp.cc,
settings.cc, settings.h, sighandlers.cc, sighandlers.h, sparse-xpow.cc,
sqrtm.cc, stack-frame.cc, stack-frame.h, stream-euler.cc, strfns.cc, svd.cc,
syminfo.cc, syminfo.h, symrcm.cc, symrec.cc, symrec.h, symscope.cc, symscope.h,
symtab.cc, symtab.h, sysdep.cc, sysdep.h, text-engine.cc, text-engine.h,
text-renderer.cc, text-renderer.h, time.cc, toplev.cc, typecast.cc,
url-handle-manager.cc, url-handle-manager.h, urlwrite.cc, utils.cc, utils.h,
variables.cc, variables.h, xdiv.cc, __delaunayn__.cc, __init_fltk__.cc,
__init_gnuplot__.cc, __ode15__.cc, __voronoi__.cc, audioread.cc, convhulln.cc,
gzip.cc, cdef-class.cc, cdef-class.h, cdef-fwd.h, cdef-manager.cc,
cdef-manager.h, cdef-method.cc, cdef-method.h, cdef-object.cc, cdef-object.h,
cdef-package.cc, cdef-package.h, cdef-property.cc, cdef-property.h,
cdef-utils.cc, cdef-utils.h, ov-base-diag.cc, ov-base-int.cc, ov-base-mat.cc,
ov-base-mat.h, ov-base-scalar.cc, ov-base.cc, ov-base.h, ov-bool-mat.cc,
ov-bool-mat.h, ov-bool-sparse.cc, ov-bool.cc, ov-builtin.h, ov-cell.cc,
ov-ch-mat.cc, ov-class.cc, ov-class.h, ov-classdef.cc, ov-classdef.h,
ov-complex.cc, ov-cx-diag.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-dld-fcn.cc,
ov-dld-fcn.h, ov-fcn-handle.cc, ov-fcn-handle.h, ov-fcn.h, ov-float.cc,
ov-flt-complex.cc, ov-flt-cx-diag.cc, ov-flt-cx-mat.cc, ov-flt-re-diag.cc,
ov-flt-re-mat.cc, ov-flt-re-mat.h, ov-intx.h, ov-java.cc, ov-lazy-idx.cc,
ov-legacy-range.cc, ov-magic-int.cc, ov-mex-fcn.cc, ov-mex-fcn.h,
ov-null-mat.cc, ov-perm.cc, ov-range.cc, ov-re-diag.cc, ov-re-mat.cc,
ov-re-mat.h, ov-re-sparse.cc, ov-scalar.cc, ov-str-mat.cc, ov-struct.cc,
ov-typeinfo.cc, ov-typeinfo.h, ov-usr-fcn.cc, ov-usr-fcn.h, ov.cc, ov.h, ovl.h,
octave.cc, octave.h, op-b-sbm.cc, op-bm-sbm.cc, op-cs-scm.cc, op-fm-fcm.cc,
op-fs-fcm.cc, op-s-scm.cc, op-scm-cs.cc, op-scm-s.cc, op-sm-cs.cc, ops.h,
anon-fcn-validator.cc, anon-fcn-validator.h, bp-table.cc, bp-table.h,
comment-list.cc, comment-list.h, filepos.h, lex.h, oct-lvalue.cc, oct-lvalue.h,
parse.h, profiler.cc, profiler.h, pt-anon-scopes.cc, pt-anon-scopes.h,
pt-arg-list.cc, pt-arg-list.h, pt-args-block.cc, pt-args-block.h,
pt-array-list.cc, pt-array-list.h, pt-assign.cc, pt-assign.h, pt-binop.cc,
pt-binop.h, pt-bp.cc, pt-bp.h, pt-cbinop.cc, pt-cbinop.h, pt-cell.cc,
pt-cell.h, pt-check.cc, pt-check.h, pt-classdef.cc, pt-classdef.h, pt-cmd.h,
pt-colon.cc, pt-colon.h, pt-const.cc, pt-const.h, pt-decl.cc, pt-decl.h,
pt-eval.cc, pt-eval.h, pt-except.cc, pt-except.h, pt-exp.cc, pt-exp.h,
pt-fcn-handle.cc, pt-fcn-handle.h, pt-id.cc, pt-id.h, pt-idx.cc, pt-idx.h,
pt-jump.h, pt-loop.cc, pt-loop.h, pt-mat.cc, pt-mat.h, pt-misc.cc, pt-misc.h,
pt-pr-code.cc, pt-pr-code.h, pt-select.cc, pt-select.h, pt-spmd.cc, pt-spmd.h,
pt-stmt.cc, pt-stmt.h, pt-tm-const.cc, pt-tm-const.h, pt-unop.cc, pt-unop.h,
pt-walk.cc, pt-walk.h, pt.cc, pt.h, token.cc, token.h, Range.cc, Range.h,
idx-vector.cc, idx-vector.h, range-fwd.h, CollocWt.cc, CollocWt.h,
aepbalance.cc, aepbalance.h, chol.cc, chol.h, gepbalance.cc, gepbalance.h,
gsvd.cc, gsvd.h, hess.cc, hess.h, lo-mappers.cc, lo-mappers.h, lo-specfun.cc,
lo-specfun.h, lu.cc, lu.h, oct-convn.cc, oct-convn.h, oct-fftw.cc, oct-fftw.h,
oct-norm.cc, oct-norm.h, oct-rand.cc, oct-rand.h, oct-spparms.cc,
oct-spparms.h, qr.cc, qr.h, qrp.cc, qrp.h, randgamma.cc, randgamma.h,
randmtzig.cc, randmtzig.h, randpoisson.cc, randpoisson.h, schur.cc, schur.h,
sparse-chol.cc, sparse-chol.h, sparse-lu.cc, sparse-lu.h, sparse-qr.cc,
sparse-qr.h, svd.cc, svd.h, child-list.cc, child-list.h, dir-ops.cc, dir-ops.h,
file-ops.cc, file-ops.h, file-stat.cc, file-stat.h, lo-sysdep.cc, lo-sysdep.h,
lo-sysinfo.cc, lo-sysinfo.h, mach-info.cc, mach-info.h, oct-env.cc, oct-env.h,
oct-group.cc, oct-group.h, oct-password.cc, oct-password.h, oct-syscalls.cc,
oct-syscalls.h, oct-time.cc, oct-time.h, oct-uname.cc, oct-uname.h,
action-container.cc, action-container.h, base-list.h, cmd-edit.cc, cmd-edit.h,
cmd-hist.cc, cmd-hist.h, f77-fcn.h, file-info.cc, file-info.h,
lo-array-errwarn.cc, lo-array-errwarn.h, lo-hash.cc, lo-hash.h, lo-ieee.h,
lo-regexp.cc, lo-regexp.h, lo-utils.cc, lo-utils.h, oct-base64.cc,
oct-base64.h, oct-glob.cc, oct-glob.h, oct-inttypes.h, oct-mutex.cc,
oct-mutex.h, oct-refcount.h, oct-shlib.cc, oct-shlib.h, oct-sparse.cc,
oct-sparse.h, oct-string.h, octave-preserve-stream-state.h, pathsearch.cc,
pathsearch.h, quit.cc, quit.h, unwind-prot.cc, unwind-prot.h, url-transfer.cc,
url-transfer.h:
Re-indent code after switch to using namespace macros.
author | Rik <rik@octave.org> |
---|---|
date | Thu, 01 Dec 2022 18:02:15 -0800 |
parents | e88a07dec498 |
children | 23664317f0d3 597f3ee61a48 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 1996-2022 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // This file is part of Octave. // // Octave is free software: you can redistribute it and/or modify it // under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // Octave is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with Octave; see the file COPYING. If not, see // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include <cstdlib> #include <cstring> #include <complex> #include <istream> #include <limits> #include <ostream> #include <string> #include "quit.h" #include "intprops-wrappers.h" #include "lo-error.h" #include "lo-ieee.h" #include "lo-mappers.h" #include "lo-utils.h" #include "oct-inttypes.h" OCTAVE_BEGIN_NAMESPACE(octave) bool is_int_or_inf_or_nan (double x) { return math::isnan (x) || math::x_nint (x) == x; } bool too_large_for_float (double x) { return (math::isfinite (x) && fabs (x) > std::numeric_limits<float>::max ()); } bool too_large_for_float (const Complex& x) { return (too_large_for_float (x.real ()) || too_large_for_float (x.imag ())); } bool is_int_or_inf_or_nan (float x) { return math::isnan (x) || math::x_nint (x) == x; } // Save a string. char * strsave (const char *s) { if (! s) return nullptr; int len = strlen (s); char *tmp = new char [len+1]; tmp = strcpy (tmp, s); return tmp; } std::string fgets (FILE *f) { bool eof; return fgets (f, eof); } std::string fgets (FILE *f, bool& eof) { eof = false; std::string retval; int grow_size = 1024; int max_size = grow_size; char *buf = static_cast<char *> (std::malloc (max_size)); if (! buf) (*current_liboctave_error_handler) ("octave_fgets: unable to malloc %d bytes", max_size); char *bufptr = buf; int len = 0; do { if (std::fgets (bufptr, grow_size, f)) { len = strlen (bufptr); if (len == grow_size - 1) { int tmp = bufptr - buf + grow_size - 1; grow_size *= 2; max_size += grow_size; auto tmpbuf = static_cast<char *> (std::realloc (buf, max_size)); if (! tmpbuf) { free (buf); (*current_liboctave_error_handler) ("octave_fgets: unable to realloc %d bytes", max_size); } buf = tmpbuf; bufptr = buf + tmp; if (*(bufptr-1) == '\n') { *bufptr = '\0'; retval = buf; } } else if (bufptr[len-1] != '\n') { bufptr[len++] = '\n'; bufptr[len] = '\0'; retval = buf; } else retval = buf; } else { if (len == 0) { eof = true; free (buf); buf = nullptr; } break; } } while (retval.empty ()); free (buf); octave_quit (); return retval; } std::string fgetl (FILE *f) { bool eof; return fgetl (f, eof); } std::string fgetl (FILE *f, bool& eof) { std::string retval = fgets (f, eof); if (! retval.empty () && retval.back () == '\n') retval.pop_back (); return retval; } template <typename T> T read_value (std::istream& is) { T retval; is >> retval; return retval; } template OCTAVE_API bool read_value<bool> (std::istream& is); template OCTAVE_API octave_int8 read_value<octave_int8> (std::istream& is); template OCTAVE_API octave_int16 read_value<octave_int16> (std::istream& is); template OCTAVE_API octave_int32 read_value<octave_int32> (std::istream& is); template OCTAVE_API octave_int64 read_value<octave_int64> (std::istream& is); template OCTAVE_API octave_uint8 read_value<octave_uint8> (std::istream& is); template OCTAVE_API octave_uint16 read_value<octave_uint16> (std::istream& is); template OCTAVE_API octave_uint32 read_value<octave_uint32> (std::istream& is); template OCTAVE_API octave_uint64 read_value<octave_uint64> (std::istream& is); // Note that the caller is responsible for repositioning the stream on // failure. template <typename T> T read_inf_nan_na (std::istream& is, char c0) { T val = 0.0; switch (c0) { case 'i': case 'I': { char c1 = is.get (); if (c1 == 'n' || c1 == 'N') { char c2 = is.get (); if (c2 == 'f' || c2 == 'F') val = std::numeric_limits<T>::infinity (); else is.setstate (std::ios::failbit); } else is.setstate (std::ios::failbit); } break; case 'n': case 'N': { char c1 = is.get (); if (c1 == 'a' || c1 == 'A') { char c2 = is.get (); if (c2 == 'n' || c2 == 'N') val = std::numeric_limits<T>::quiet_NaN (); else { val = numeric_limits<T>::NA (); if (c2 != std::istream::traits_type::eof ()) is.putback (c2); else is.clear (is.rdstate () & ~std::ios::failbit); } } else is.setstate (std::ios::failbit); } break; default: (*current_liboctave_error_handler) ("read_inf_nan_na: invalid character '%c'", c0); } return val; } // Read a double value. Discard any sign on NaN and NA. template <typename T> double read_fp_value (std::istream& is) { T val = 0.0; // FIXME: resetting stream position is likely to fail unless we are // reading from a file. std::streampos pos = is.tellg (); char c1 = ' '; while (isspace (c1)) c1 = is.get (); bool neg = false; switch (c1) { case '-': neg = true; OCTAVE_FALLTHROUGH; case '+': { char c2 = 0; c2 = is.get (); if (c2 == 'i' || c2 == 'I' || c2 == 'n' || c2 == 'N') val = read_inf_nan_na<T> (is, c2); else { is.putback (c2); is >> val; } if (neg && ! is.fail ()) val = -val; } break; case 'i': case 'I': case 'n': case 'N': val = read_inf_nan_na<T> (is, c1); break; default: is.putback (c1); is >> val; break; } std::ios::iostate status = is.rdstate (); if (status & std::ios::failbit) { // Convert MAX_VAL returned by C++ streams for very large numbers to Inf if (val == std::numeric_limits<T>::max ()) { if (neg) val = -std::numeric_limits<T>::infinity (); else val = std::numeric_limits<T>::infinity (); is.clear (status & ~std::ios::failbit); } else { // True error. Reset stream to original position and pass status on. is.clear (); is.seekg (pos); is.setstate (status); } } return val; } template <typename T> std::complex<T> read_cx_fp_value (std::istream& is) { T re = 0.0; T im = 0.0; std::complex<T> cx = 0.0; char ch = ' '; while (isspace (ch)) ch = is.get (); if (ch == '(') { re = read_value<T> (is); ch = is.get (); if (ch == ',') { im = read_value<T> (is); ch = is.get (); if (ch == ')') cx = std::complex<T> (re, im); else is.setstate (std::ios::failbit); } else if (ch == ')') cx = re; else is.setstate (std::ios::failbit); } else { is.putback (ch); cx = read_value<T> (is); } return cx; } // FIXME: Could we use traits and enable_if to avoid duplication in the // following specializations? template <> OCTAVE_API double read_value (std::istream& is) { return read_fp_value<double> (is); } template <> OCTAVE_API Complex read_value (std::istream& is) { return read_cx_fp_value<double> (is); } template <> OCTAVE_API float read_value (std::istream& is) { return read_fp_value<float> (is); } template <> OCTAVE_API FloatComplex read_value (std::istream& is) { return read_cx_fp_value<float> (is); } template <typename T> void write_value (std::ostream& os, const T& value) { os << value; } template OCTAVE_API void write_value<bool> (std::ostream& os, const bool& value); template OCTAVE_API void write_value<octave_int8> (std::ostream& os, const octave_int8& value); template OCTAVE_API void write_value<octave_int16> (std::ostream& os, const octave_int16& value); template OCTAVE_API void write_value<octave_int32> (std::ostream& os, const octave_int32& value); template OCTAVE_API void write_value<octave_int64> (std::ostream& os, const octave_int64& value); template OCTAVE_API void write_value<octave_uint8> (std::ostream& os, const octave_uint8& value); template OCTAVE_API void write_value<octave_uint16> (std::ostream& os, const octave_uint16& value); template OCTAVE_API void write_value<octave_uint32> (std::ostream& os, const octave_uint32& value); template OCTAVE_API void write_value<octave_uint64> (std::ostream& os, const octave_uint64& value); // Note: precision is supposed to be managed outside of this function by // setting stream parameters. template <> OCTAVE_API void write_value (std::ostream& os, const double& value) { if (lo_ieee_is_NA (value)) os << "NA"; else if (lo_ieee_isnan (value)) os << "NaN"; else if (lo_ieee_isinf (value)) os << (value < 0 ? "-Inf" : "Inf"); else os << value; } template <> OCTAVE_API void write_value (std::ostream& os, const Complex& value) { os << '('; write_value<double> (os, real (value)); os << ','; write_value<double> (os, imag (value)); os << ')'; } // Note: precision is supposed to be managed outside of this function by // setting stream parameters. template <> OCTAVE_API void write_value (std::ostream& os, const float& value) { if (lo_ieee_is_NA (value)) os << "NA"; else if (lo_ieee_isnan (value)) os << "NaN"; else if (lo_ieee_isinf (value)) os << (value < 0 ? "-Inf" : "Inf"); else os << value; } template <> OCTAVE_API void write_value (std::ostream& os, const FloatComplex& value) { os << '('; write_value<float> (os, real (value)); os << ','; write_value<float> (os, imag (value)); os << ')'; } OCTAVE_BEGIN_NAMESPACE(math) bool int_multiply_overflow (int a, int b, int *r) { return octave_i_multiply_overflow_wrapper (a, b, r); } bool int_multiply_overflow (long int a, long int b, long int *r) { return octave_li_multiply_overflow_wrapper (a, b, r); } #if defined (OCTAVE_HAVE_LONG_LONG_INT) bool int_multiply_overflow (long long int a, long long int b, long long int *r) { return octave_lli_multiply_overflow_wrapper (a, b, r); } #endif bool int_multiply_overflow (unsigned int a, unsigned int b, unsigned int *r) { return octave_ui_multiply_overflow_wrapper (a, b, r); } bool int_multiply_overflow (unsigned long int a, unsigned long int b, unsigned long int *r) { return octave_uli_multiply_overflow_wrapper (a, b, r); } #if defined (OCTAVE_HAVE_UNSIGNED_LONG_LONG_INT) bool int_multiply_overflow (unsigned long long int a, unsigned long long int b, unsigned long long int *r) { return octave_ulli_multiply_overflow_wrapper (a, b, r); } #endif OCTAVE_END_NAMESPACE(math) OCTAVE_END_NAMESPACE(octave)