mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-26 15:00:06 +00:00
41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
/* Software floating-point emulation.
|
|
Return !a
|
|
Copyright (C) 1997,1999 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Richard Henderson (rth@cygnus.com) and
|
|
Jakub Jelinek (jj@ultra.linux.cz).
|
|
|
|
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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include "soft-fp.h"
|
|
#include "quad.h"
|
|
|
|
long double _Q_neg(const long double a)
|
|
{
|
|
FP_DECL_EX;
|
|
long double c = a;
|
|
|
|
#if (__BYTE_ORDER == __BIG_ENDIAN)
|
|
((UWtype *)&c)[0] ^= (((UWtype)1) << (W_TYPE_SIZE - 1));
|
|
#elif (__BYTE_ORDER == __LITTLE_ENDIAN) && (W_TYPE_SIZE == 64)
|
|
((UWtype *)&c)[1] ^= (((UWtype)1) << (W_TYPE_SIZE - 1));
|
|
#elif (__BYTE_ORDER == __LITTLE_ENDIAN) && (W_TYPE_SIZE == 32)
|
|
((UWtype *)&c)[3] ^= (((UWtype)1) << (W_TYPE_SIZE - 1));
|
|
#else
|
|
FP_DECL_Q(A); FP_DECL_Q(C);
|
|
|
|
FP_UNPACK_Q(A, a);
|
|
FP_NEG_Q(C, A);
|
|
FP_PACK_Q(c, C);
|
|
#endif
|
|
FP_CLEAR_EXCEPTIONS;
|
|
FP_HANDLE_EXCEPTIONS;
|
|
return c;
|
|
}
|