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authorUlrich Drepper <drepper@redhat.com>1998-07-30 12:47:25 +0000
committerUlrich Drepper <drepper@redhat.com>1998-07-30 12:47:25 +0000
commitbdd421cc6d055af6a1a561344b2fa56267cad617 (patch)
treebe16db84076d9a9aa58deed3f7452fabc5fa4d04 /sysdeps/generic/ffsll.c
parentccd17b3265ed22f6add55b574b684f6e11a2ea8c (diff)
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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.c42
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