mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-07 13:50:07 +00:00
b62990918e
* sysdeps/powerpc/fpu/s_rint.c: Handle rounding to -0 correctly. * sysdeps/powerpc/fpu/s_rintf.c: Likewise. * sysdeps/unix/sysv/linux/powerpc/syscalls.list: Add getrlimit and setrlimit syscalls for backwards compatibility. 2000-04-11 Geoff Keating <geoffk@cygnus.com> * sysdeps/powerpc/dl-machine.c: Include dl-machine.h after the other header files. Mention about 128-byte cache line sizes. (__elf_machine_fixup_plt): Make types match elf_machine_fixup_plt. * sysdeps/powerpc/dl-machine.h (elf_machine_fixup_plt): Update for current calling sequence. * sysdeps/powerpc/dl-start.S (_dl_start_user): Close comment. * sysdeps/powerpc/fpu/s_rint.c: Handle rounding to -0 correctly. * sysdeps/powerpc/fpu/s_rintf.c: Likewise. * sysdeps/unix/sysv/linux/powerpc/syscalls.list: Add getrlimit and setrlimit syscalls for backwards compatibility.
48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
/* Round a 64-bit floating point value to the nearest integer.
|
|
Copyright (C) 1997, 2000 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,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include "math.h"
|
|
|
|
double
|
|
__rint (double x)
|
|
{
|
|
static const float TWO52 = 4503599627370496.0;
|
|
|
|
if (fabs (x) < TWO52)
|
|
{
|
|
if (x > 0.0)
|
|
{
|
|
x += TWO52;
|
|
x -= TWO52;
|
|
}
|
|
else if (x < 0.0)
|
|
{
|
|
x = TWO52 - x;
|
|
x = -(x - TWO52);
|
|
}
|
|
}
|
|
|
|
return x;
|
|
}
|
|
weak_alias (__rint, rint)
|
|
#ifdef NO_LONG_DOUBLE
|
|
strong_alias (__rint, __rintl)
|
|
weak_alias (__rint, rintl)
|
|
#endif
|