vasilito
facf0c92e0
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
143 lines
3.9 KiB
C
143 lines
3.9 KiB
C
/* Macros for signalling not-a-number.
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Copyright (C) 2023-2024 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef _SIGNED_SNAN_H
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#define _SIGNED_SNAN_H
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#include "signed-nan.h"
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#include "snan.h"
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#if HAVE_SNANF
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/* Returns a signalling 'float' NaN with sign bit == 0 in memory. */
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_GL_UNUSED static memory_float
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memory_positive_SNaNf ()
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{
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return construct_memory_SNaNf (positive_NaNf ());
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}
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/* Returns a signalling 'float' NaN with sign bit == 1 in memory. */
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_GL_UNUSED static memory_float
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memory_negative_SNaNf ()
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{
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return construct_memory_SNaNf (negative_NaNf ());
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}
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/* Note: On 32-bit x86 processors, as well as on x86_64 processors with
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CC="gcc -mfpmath=387", the following functions may return a quiet NaN
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instead. Use the functions with 'memory_' prefix if you need to avoid this.
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See <https://lists.gnu.org/archive/html/bug-gnulib/2023-10/msg00060.html>
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for details. */
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/* Returns a signalling 'float' NaN with sign bit == 0. */
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_GL_UNUSED static float
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positive_SNaNf ()
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{
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return memory_positive_SNaNf ().value;
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}
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/* Returns a signalling 'float' NaN with sign bit == 1. */
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_GL_UNUSED static float
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negative_SNaNf ()
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{
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return memory_negative_SNaNf ().value;
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}
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#endif
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#if HAVE_SNAND
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/* Returns a signalling 'double' NaN with sign bit == 0 in memory. */
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_GL_UNUSED static memory_double
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memory_positive_SNaNd ()
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{
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return construct_memory_SNaNd (positive_NaNd ());
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}
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/* Returns a signalling 'double' NaN with sign bit == 1 in memory. */
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_GL_UNUSED static memory_double
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memory_negative_SNaNd ()
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{
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return construct_memory_SNaNd (negative_NaNd ());
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}
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/* Note: On 32-bit x86 processors, as well as on x86_64 processors with
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CC="gcc -mfpmath=387", the following functions may return a quiet NaN
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instead. Use the functions with 'memory_' prefix if you need to avoid this.
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See <https://lists.gnu.org/archive/html/bug-gnulib/2023-10/msg00060.html>
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for details. */
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/* Returns a signalling 'double' NaN with sign bit == 0. */
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_GL_UNUSED static double
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positive_SNaNd ()
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{
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return memory_positive_SNaNd ().value;
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}
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/* Returns a signalling 'double' NaN with sign bit == 1. */
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_GL_UNUSED static double
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negative_SNaNd ()
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{
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return memory_negative_SNaNd ().value;
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}
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#endif
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#if HAVE_SNANL
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/* Returns a signalling 'long double' NaN with sign bit == 0 in memory. */
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_GL_UNUSED static memory_long_double
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memory_positive_SNaNl ()
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{
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return construct_memory_SNaNl (positive_NaNl ());
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}
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/* Returns a signalling 'long double' NaN with sign bit == 1 in memory. */
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_GL_UNUSED static memory_long_double
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memory_negative_SNaNl ()
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{
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return construct_memory_SNaNl (negative_NaNl ());
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}
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/* Note: On 32-bit x86 processors, as well as on x86_64 processors with
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CC="gcc -mfpmath=387", if HAVE_SAME_LONG_DOUBLE_AS_DOUBLE is 1, the
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following functions may return a quiet NaN instead. Use the functions
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with 'memory_' prefix if you need to avoid this. See
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<https://lists.gnu.org/archive/html/bug-gnulib/2023-10/msg00060.html>
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for details. */
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/* Returns a signalling 'long double' NaN with sign bit == 0. */
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_GL_UNUSED static long double
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positive_SNaNl ()
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{
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return memory_positive_SNaNl ().value;
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}
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/* Returns a signalling 'long double' NaN with sign bit == 1. */
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_GL_UNUSED static long double
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negative_SNaNl ()
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{
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return memory_negative_SNaNl ().value;
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}
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#endif
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#endif /* _SIGNED_SNAN_H */
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