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/* Functions for saving the floating-point exception status flags.
Copyright (C) 1997-2025 Free Software Foundation, Inc.
This file 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 2.1 of the
License, or (at your option) any later version.
This file 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 this program. If not, see <https://www.gnu.org/licenses/>. */
/* Based on glibc/math/fetestexceptflag.c
together with glibc/sysdeps/<cpu>/{fpu_control.h,fenv_private.h,fenv_libc.h}. */
#include <config.h>
/* Specification. */
#include <fenv.h>
#if (defined __x86_64__ || defined _M_X64) || (defined __i386 || defined _M_IX86)
int
fetestexceptflag (fexcept_t const *saved_flags, int exceptions)
{
unsigned int flags = (unsigned int) *saved_flags;
return flags & FE_ALL_EXCEPT & exceptions;
}
#elif defined __aarch64__ /* arm64 */
int
fetestexceptflag (fexcept_t const *saved_flags, int exceptions)
{
unsigned long flags = (unsigned long) *saved_flags;
return flags & FE_ALL_EXCEPT & exceptions;
}
#elif defined __arm__
int
fetestexceptflag (fexcept_t const *saved_flags, int exceptions)
{
unsigned int flags = (unsigned int) *saved_flags;
return flags & FE_ALL_EXCEPT & exceptions;
}
#elif defined __alpha
int
fetestexceptflag (fexcept_t const *saved_flags, int exceptions)
{
unsigned long flags = (unsigned long) *saved_flags;
return flags & FE_ALL_EXCEPT & exceptions;
}
#elif defined __hppa
int
fetestexceptflag (fexcept_t const *saved_flags, int exceptions)
{
unsigned int flags = (unsigned int) *saved_flags;
return flags & FE_ALL_EXCEPT & exceptions;
}
#elif defined __ia64__
int
fetestexceptflag (fexcept_t const *saved_flags, int exceptions)
{
unsigned long flags = (unsigned long) *saved_flags;
return flags & FE_ALL_EXCEPT & exceptions;
}
#elif defined __m68k__
int
fetestexceptflag (fexcept_t const *saved_flags, int exceptions)
{
unsigned int flags = (unsigned int) *saved_flags;
return flags & FE_ALL_EXCEPT & exceptions;
}
#elif defined __mips__
int
fetestexceptflag (fexcept_t const *saved_flags, int exceptions)
{
unsigned int flags = (unsigned int) *saved_flags;
return flags & FE_ALL_EXCEPT & exceptions;
}
#elif defined __loongarch__
int
fetestexceptflag (fexcept_t const *saved_flags, int exceptions)
{
unsigned int flags = (unsigned int) *saved_flags;
return flags & FE_ALL_EXCEPT & exceptions;
}
#elif defined __powerpc__
int
fetestexceptflag (fexcept_t const *saved_flags, int exceptions)
{
unsigned int flags = (unsigned int) *saved_flags;
return flags & FE_ALL_EXCEPT & exceptions;
}
#elif defined __riscv
int
fetestexceptflag (fexcept_t const *saved_flags, int exceptions)
{
unsigned int flags = (unsigned int) *saved_flags;
return flags & FE_ALL_EXCEPT & exceptions;
}
#elif defined __s390__ || defined __s390x__
int
fetestexceptflag (fexcept_t const *saved_flags, int exceptions)
{
unsigned int flags = (unsigned int) *saved_flags;
return flags & FE_ALL_EXCEPT & exceptions;
}
#elif defined __sh__
int
fetestexceptflag (fexcept_t const *saved_flags, int exceptions)
{
unsigned int flags = (unsigned int) *saved_flags;
return flags & FE_ALL_EXCEPT & exceptions;
}
#elif defined __sparc
int
fetestexceptflag (fexcept_t const *saved_flags, int exceptions)
{
unsigned long flags = (unsigned long) *saved_flags;
return flags & FE_ALL_EXCEPT & exceptions;
}
#else
# if defined __GNUC__ || defined __clang__
# warning "Unknown CPU / architecture. Please report your platform and compiler to <bug-gnulib@gnu.org>."
# endif
# define NEED_FALLBACK 1
#endif
#if NEED_FALLBACK
/* A dummy fallback. */
int
fetestexceptflag (fexcept_t const *saved_flags, int exceptions)
{
return 0;
}
#endif
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