mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-21 01:12:26 +08:00
bfc04a9ff1
* sysdeps/posix/utimes.c (__utimes): There are 1000000 usecs in a sec. Sun Feb 18 13:56:00 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * elf/Makefile, time/Makefile: Make `all' the default target. Mon Feb 19 18:09:04 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu> * misc/sys/ptrace.h: Moved to ... * sysdeps/generic/sys/ptrace.h: ... here. * sys/ptrace.h: File removed. Sun Feb 18 12:13:07 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/Makefile (headers): Add fpu_control.h. * sysdeps/unix/sysv/linux/i386/sysdep.S (errno): Put it into .bss so that the symbol alias works. * sysdeps/unix/sysv/linux/m68k/fpu_control.h (_FPU_SETCW): Corrected. * sysdeps/unix/sysv/linux/resourcebits.h: New file. * sysdeps/unix/sysv/linux/sys/ptrace.h: New file. * sysdeps/unix/sysv/linux/syscalls.list: Add getegid, geteuid, getppid and reboot. * sysdeps/unix/sysv/linux/sysconf.c: Special version that does not use getdtablesize. Sat Feb 17 10:30:21 1996 David Mosberger-Tang <davidm@AZStarNet.com> * stdio-common/printf_fp.c, stdlib/strtod.c, sysdeps/ieee754/dbl2mpn.c, sysdeps/ieee754/ldbl2mpn.c, sysdeps/ieee754/mpn2dbl.c, sysdeps/ieee754/mpn2ldbl.c: Cast left operands of shift instructions to `long' where necessary. Thu Feb 15 20:04:50 1996 Ulrich Drepper <drepper@gnu.ai.mit.edu> * stdlib/fpioconst.h: Introduce new constant _FPIO_CONST_OFFSET. * stdio-common/printf_fp.c, stdlib/strtod.c: Use _FPIO_CONST_OFFSET to correctly access MPN array depending on architecture.
47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
/* Copyright (C) 1995, 1996 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., 675 Mass Ave,
|
|
Cambridge, MA 02139, USA. */
|
|
|
|
#include "gmp.h"
|
|
#include "gmp-impl.h"
|
|
#include "ieee754.h"
|
|
#include <float.h>
|
|
|
|
/* Convert a multi-precision integer of the needed number of bits (64 for
|
|
long double) and an integral power of two to a `long double' in IEEE854
|
|
extended-precision format. */
|
|
|
|
long double
|
|
__mpn_construct_long_double (mp_srcptr frac_ptr, int expt, int sign)
|
|
{
|
|
union ieee854_long_double u;
|
|
|
|
u.ieee.negative = sign;
|
|
u.ieee.exponent = expt + IEEE854_LONG_DOUBLE_BIAS;
|
|
#if BITS_PER_MP_LIMB == 32
|
|
u.ieee.mantissa1 = frac_ptr[0];
|
|
u.ieee.mantissa0 = frac_ptr[1];
|
|
#elif BITS_PER_MP_LIMB == 64
|
|
u.ieee.mantissa1 = frac_ptr[0] & ((1L << 32) - 1);
|
|
u.ieee.mantissa0 = frac_ptr[0] >> 32;
|
|
#else
|
|
#error "mp_limb size " BITS_PER_MP_LIMB "not accounted for"
|
|
#endif
|
|
|
|
return u.d;
|
|
}
|