Mercurial > octave-nkf
view liboctave/util/lo-ieee.cc @ 19632:76478d2da117
unconditionally disable the octave_allocator class
* configure.ac: Delete the --enable-octave-allocator option.
* oct-alloc.h: Delete octave_allocator class. Warn if file is
included. Unconditionally define macros to be empty.
* NEWS: Make note of these changes.
* oct-alloc.cc: Delete.
* liboctave/util/module.mk (UTIL_SRC): Remove it from the list.
* make_int.cc, Cell.h, oct-obj.cc, oct-obj.h, audiodevinfo.cc,
ov-base-int.h, ov-base-scalar.h, ov-bool-mat.cc, ov-bool-mat.h,
ov-bool-sparse.cc, ov-bool-sparse.h, ov-bool.cc, ov-bool.h,
ov-builtin.cc, ov-builtin.h, ov-cell.cc, ov-cell.h, ov-ch-mat.h,
ov-class.cc, ov-class.h, ov-classdef.cc, ov-classdef.h, ov-complex.cc,
ov-complex.h, ov-cs-list.cc, ov-cs-list.h, ov-cx-diag.cc,
ov-cx-diag.h, ov-cx-mat.cc, ov-cx-mat.h, ov-cx-sparse.cc,
ov-cx-sparse.h, ov-dld-fcn.cc, ov-dld-fcn.h, ov-fcn-handle.cc,
ov-fcn-handle.h, ov-fcn-inline.cc, ov-fcn-inline.h, ov-fcn.cc,
ov-fcn.h, ov-float.cc, ov-float.h, ov-flt-complex.cc,
ov-flt-complex.h, ov-flt-cx-diag.cc, ov-flt-cx-diag.h,
ov-flt-cx-mat.cc, ov-flt-cx-mat.h, ov-flt-re-diag.cc,
ov-flt-re-diag.h, ov-flt-re-mat.cc, ov-flt-re-mat.h, ov-int16.cc,
ov-int32.cc, ov-int64.cc, ov-int8.cc, ov-intx.h, ov-java.cc,
ov-java.h, ov-mex-fcn.cc, ov-mex-fcn.h, ov-perm.cc, ov-perm.h,
ov-range.cc, ov-range.h, ov-re-diag.cc, ov-re-diag.h, ov-re-mat.cc,
ov-re-mat.h, ov-re-sparse.cc, ov-re-sparse.h, ov-scalar.cc,
ov-scalar.h, ov-str-mat.cc, ov-str-mat.h, ov-struct.cc, ov-struct.h,
ov-uint16.cc, ov-uint32.cc, ov-uint64.cc, ov-uint8.cc, ov-usr-fcn.cc,
ov-usr-fcn.h, ov.cc, ov.h, pt-const.cc, pt-const.h, idx-vector.cc,
idx-vector.h: Delete uses of oct-alloc.h and OCTAVE_ALLOCATOR macros.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Tue, 20 Jan 2015 13:43:29 -0500 |
parents | 5b263e517c95 |
children | 4197fc428c7d |
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/* Copyright (C) 1996-2013 John W. Eaton 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 <http://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include <cfloat> #include <cmath> #include <cstdlib> #include <limits> static double lo_inf; static double lo_nan; static double lo_na; static float lo_float_inf; static float lo_float_nan; static float lo_float_na; static int lo_ieee_hw; static int lo_ieee_lw; #include "lo-error.h" #include "lo-ieee.h" #include "lo-math.h" #include "mach-info.h" int __lo_ieee_isnan (double x) { #if defined (HAVE_CMATH_ISNAN) return std::isnan (x); #else // Gnulib provides. return isnan (x); #endif } int __lo_ieee_finite (double x) { #if defined (HAVE_CMATH_ISFINITE) return std::isfinite (x); #else // Gnulib provides. return finite (x); #endif } int __lo_ieee_isinf (double x) { #if defined (HAVE_CMATH_ISINF) return std::isinf (x); #else // Gnulib provides. return isinf (x); #endif } int __lo_ieee_is_NA (double x) { lo_ieee_double t; t.value = x; return (__lo_ieee_isnan (x) && t.word[lo_ieee_hw] == LO_IEEE_NA_HW && t.word[lo_ieee_lw] == LO_IEEE_NA_LW) ? 1 : 0; } int __lo_ieee_is_old_NA (double x) { lo_ieee_double t; t.value = x; return (__lo_ieee_isnan (x) && t.word[lo_ieee_lw] == LO_IEEE_NA_LW_OLD && t.word[lo_ieee_hw] == LO_IEEE_NA_HW_OLD) ? 1 : 0; } double __lo_ieee_replace_old_NA (double x) { if (__lo_ieee_is_old_NA (x)) return lo_ieee_na_value (); else return x; } double lo_ieee_inf_value (void) { octave_ieee_init (); return lo_inf; } double lo_ieee_na_value (void) { octave_ieee_init (); return lo_na; } double lo_ieee_nan_value (void) { octave_ieee_init (); return lo_nan; } int __lo_ieee_signbit (double x) { #if defined (HAVE_CMATH_SIGNBIT) return std::signbit (x); #else // Gnulib provides. return signbit (x); #endif } int __lo_ieee_float_isnan (float x) { #if defined (HAVE_CMATH_ISNAN) return std::isnan (x); #else // Gnulib provides. return isnan (x); #endif } int __lo_ieee_float_finite (float x) { #if defined (HAVE_CMATH_ISFINITE) return std::isfinite (x) != 0 && ! __lo_ieee_float_isnan (x); #else // Gnulib provides. return finite (x); #endif } int __lo_ieee_float_isinf (float x) { #if defined (HAVE_CMATH_ISINF) return std::isinf (x); #else // Gnulib provides. return isinf (x); #endif } int __lo_ieee_float_is_NA (float x) { lo_ieee_float t; t.value = x; return (__lo_ieee_float_isnan (x) && (t.word == LO_IEEE_NA_FLOAT)) ? 1 : 0; } float lo_ieee_float_inf_value (void) { octave_ieee_init (); return lo_float_inf; } float lo_ieee_float_na_value (void) { octave_ieee_init (); return lo_float_na; } float lo_ieee_float_nan_value (void) { octave_ieee_init (); return lo_float_nan; } int __lo_ieee_float_signbit (float x) { #if defined (HAVE_CMATH_SIGNBIT) return std::signbit (x); #else // Gnulib provides. return signbit (x); #endif } void octave_ieee_init (void) { bool initialized = false; if (! initialized) { oct_mach_info::float_format ff = oct_mach_info::native_float_format (); switch (ff) { case oct_mach_info::flt_fmt_ieee_big_endian: case oct_mach_info::flt_fmt_ieee_little_endian: { lo_nan = std::numeric_limits<double>::quiet_NaN (); lo_inf = std::numeric_limits<double>::infinity (); lo_float_nan = std::numeric_limits<float>::quiet_NaN (); lo_float_inf = std::numeric_limits<float>::infinity (); // The following is patterned after code in R. if (ff == oct_mach_info::flt_fmt_ieee_big_endian) { lo_ieee_hw = 0; lo_ieee_lw = 1; } else { lo_ieee_hw = 1; lo_ieee_lw = 0; } lo_ieee_double t; t.word[lo_ieee_hw] = LO_IEEE_NA_HW; t.word[lo_ieee_lw] = LO_IEEE_NA_LW; lo_na = t.value; lo_ieee_float tf; tf.word = LO_IEEE_NA_FLOAT; lo_float_na = tf.value; } break; default: // If the format is unknown, then you will probably not have a // useful system, so we will abort here. Anyone wishing to // experiment with building Octave on a system without IEEE // floating point should be capable of removing this check and // the configure test. (*current_liboctave_error_handler) ("lo_ieee_init: floating point format is not IEEE! Maybe DLAMCH is miscompiled, or you are using some strange system without IEEE floating point math?"); abort (); } initialized = true; } }