glibc/sysdeps/powerpc/fpu/s_modff.c
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

56 lines
1.6 KiB
C

/* Copyright (C) 2013-2022 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, see <https://www.gnu.org/licenses/>. */
/* ISA 2.07 provides fast GPR to FP instruction (mfvsr{d,wz}) which make
generic implementation faster. Also disables for old ISAs that do not
have ceil/floor instructions. */
#if defined(_ARCH_PWR8) || !defined(_ARCH_PWR5X)
# include <sysdeps/ieee754/flt-32/s_modff.c>
#else
# include <math.h>
# include <libm-alias-float.h>
float
__modff (float x, float *iptr)
{
if (__builtin_isinff (x))
{
*iptr = x;
return copysignf (0.0, x);
}
else if (__builtin_isnanf (x))
{
*iptr = NAN;
return NAN;
}
if (x >= 0.0)
{
*iptr = floorf (x);
return copysignf (x - *iptr, x);
}
else
{
*iptr = ceilf (x);
return copysignf (x - *iptr, x);
}
}
# ifndef __modff
libm_alias_float (__modf, modf)
# endif
#endif