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| author | Ulrich Drepper <drepper@redhat.com> | 1998-07-30 12:47:25 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1998-07-30 12:47:25 +0000 |
| commit | bdd421cc6d055af6a1a561344b2fa56267cad617 (patch) | |
| tree | be16db84076d9a9aa58deed3f7452fabc5fa4d04 /sysdeps/generic/ffsll.c | |
| parent | ccd17b3265ed22f6add55b574b684f6e11a2ea8c (diff) | |
| download | glibc-bdd421cc6d055af6a1a561344b2fa56267cad617.tar.gz | |
Update.
1998-07-30 12:38 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/i386/ffs.c: Add ffsl entry point.
* sysdeps/i386/i686/ffs.c: Likewise.
* sysdeps/m68k/ffs.c: Likewise.
* sysdeps/powerpc/ffs.c: Likewise.
* sysdeps/i386/i486/bits/string.h: Add optimizations for ffs/ffsl
on i686.
1998-07-30 Richard Henderson <rth@cygnus.com>
* elf/Makefile (ld-map): Move initialization below Makeconfig include.
* sysdeps/libm-ieee754/k_standard.c (zero): Make non-const to
work around gcc bug.
* string/string.h (ffsl, ffsll): Prototype.
* string/Version (GLIBC_2.1): Add them.
* sysdeps/alpha/ffs.S: Schedule for EV5. Add ffsl and ffsll
entry points.
* sysdeps/alpha/ffsll.S: New file. Empty.
* sysdeps/generic/ffs.c: Add ffsl and ffsll entry points.
* sysdeps/generic/ffsll.c: New file.
* string/Makefile (routines): Add ffsll.
1998-07-30 10:03 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/alpha/bits/time.h: Don't define CLK_TCK for
strictly ISO C compliant programs.
* sysdeps/unix/sysv/linux/mips/bits/time.h: Likewise.
1998-07-22 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* inet/protocols/rwhod.h: Correct typo in comment.
* configure.in: Use better regex for gettext.
Diffstat (limited to 'sysdeps/generic/ffsll.c')
| -rw-r--r-- | sysdeps/generic/ffsll.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/sysdeps/generic/ffsll.c b/sysdeps/generic/ffsll.c new file mode 100644 index 0000000000..b6b836c1a3 --- /dev/null +++ b/sysdeps/generic/ffsll.c @@ -0,0 +1,42 @@ +/* Copyright (C) 1991, 1992, 1997, 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Torbjorn Granlund (tege@sics.se). + + 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 <limits.h> +#define ffsl __something_else +#include <string.h> + +#undef ffsll + +/* Find the first bit set in I. */ +int +ffsll (i) + long long int i; +{ + unsigned long long int x = i & -i; + + if (x <= 0xffffffff) + return ffs (i); + else + return 32 + ffs (i >> 32); +} + +#if ULONG_MAX != UINT_MAX +#undef ffsl +weak_alias (ffsll, ffsl) +#endif |