sysdeps/tile/ffs.c

   1 /* Copyright (C) 2011-2017 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library.  If not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <limits.h>
  20 #define ffsl __something_else
  21 #include <string.h>
  22
  23 #undef ffs
  24 int
  25 __ffs (int x)
  26 {
  27   return __builtin_ffs (x);
  28 }
  29 weak_alias (__ffs, ffs)
  30 libc_hidden_def (__ffs)
  31 libc_hidden_builtin_def (ffs)
  32
  33 #if ULONG_MAX == UINT_MAX
  34 #undef ffsl
  35 weak_alias (__ffs, ffsl)
  36 #endif