glibc/bits/fenv.h
Paul Eggert 581c785bf3 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2022-01-01 11:40:24 -08:00

64 lines
1.8 KiB
C

/* Copyright (C) 1997-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C 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 2.1 of the License, or (at your option) any later version.
The GNU C 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 C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _FENV_H
# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
#endif
/* Here should be the exception be defined:
FE_INVALID
FE_DIVBYZERO
FE_OVERFLOW
FE_UNDERFLOW
FE_INEXACT
We define no macro which signals no exception is supported. */
#define FE_ALL_EXCEPT 0
/* Here should the rounding modes be defined:
FE_TONEAREST
FE_DOWNWARD
FE_UPWARD
FE_TOWARDZERO
We define no macro which signals no rounding mode is selectable. */
/* Type representing exception flags. */
typedef unsigned int fexcept_t;
/* Type representing floating-point environment. */
typedef struct
{
fexcept_t __excepts;
/* XXX I don't know what else we should save. */
}
fenv_t;
/* If the default argument is used we use this value. */
#define FE_DFL_ENV ((const fenv_t *) -1l)
#if __GLIBC_USE (IEC_60559_BFP_EXT_C2X)
/* Type representing floating-point control modes. */
typedef unsigned int femode_t;
/* Default floating-point control modes. */
# define FE_DFL_MODE ((const femode_t *) -1L)
#endif