ff4ff35918
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.
73 lines
2.5 KiB
C
73 lines
2.5 KiB
C
/* MPFR internal header related to Static Assertions
|
|
|
|
Copyright 2012-2025 Free Software Foundation, Inc.
|
|
Contributed by the Pascaline and Caramba projects, INRIA.
|
|
|
|
This file is part of the GNU MPFR Library.
|
|
|
|
The GNU MPFR Library is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or (at your
|
|
option) any later version.
|
|
|
|
The GNU MPFR Library 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 Lesser General Public
|
|
License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with the GNU MPFR Library; see the file COPYING.LESSER.
|
|
If not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef __MPFR_STATIC_ASSERT_H__
|
|
#define __MPFR_STATIC_ASSERT_H__
|
|
|
|
#include "mpfr-cvers.h" /* for __MPFR_GNUC */
|
|
|
|
/* How to use:
|
|
===========
|
|
MPFR_STAT_STATIC_ASSERT:
|
|
+ to check a condition at compile time within the statement section.
|
|
|
|
Note: In case one would need a static assertion in an expression,
|
|
a sizeof(...) instead of a typedef could be used. For instance,
|
|
see https://stackoverflow.com/questions/9229601/what-is-in-c-code
|
|
(about BUILD_BUG_ON_ZERO in the Linux kernel).
|
|
*/
|
|
|
|
#ifdef MPFR_USE_STATIC_ASSERT
|
|
|
|
/* C11 version */
|
|
# if defined (__STDC_VERSION__)
|
|
# if (__STDC_VERSION__ >= 201112L)
|
|
# define MPFR_STAT_STATIC_ASSERT(c) _Static_assert((c), #c )
|
|
# endif
|
|
# endif
|
|
|
|
/* Default version which should be compatible with nearly all compilers */
|
|
# if !defined(MPFR_STAT_STATIC_ASSERT)
|
|
# if __MPFR_GNUC(4,8)
|
|
/* Get rid of annoying warnings "typedef '...' locally defined but not used"
|
|
(new in GCC 4.8). Thanks to Jonathan Wakely for this solution:
|
|
https://gcc.gnu.org/legacy-ml/gcc-help/2013-07/msg00142.html */
|
|
# define MPFR_TYPEDEF_UNUSED __attribute__ ((unused))
|
|
# else
|
|
# define MPFR_TYPEDEF_UNUSED
|
|
# endif
|
|
# define MPFR_ASSERT_CAT(a,b) MPFR_ASSERT_CAT_(a,b)
|
|
# define MPFR_ASSERT_CAT_(a,b) a ## b
|
|
# define MPFR_STAT_STATIC_ASSERT(c) do { \
|
|
typedef enum { MPFR_ASSERT_CAT(MPFR_STATIC_ASSERT_CONST_,__LINE__) = !(c) } \
|
|
MPFR_ASSERT_CAT(MPFR_ASSERT_,__LINE__)[!!(c) ? 1 : -1] \
|
|
MPFR_TYPEDEF_UNUSED; } while (0)
|
|
# endif
|
|
|
|
#else
|
|
|
|
/* No support: default to classic assertions */
|
|
# define MPFR_STAT_STATIC_ASSERT(c) MPFR_ASSERTN(c)
|
|
|
|
#endif
|
|
|
|
#endif
|