sysdeps/powerpc/powerpc32/power6/wcschr.c

   1 /* wcschr.c - Wide Character Search for powerpc32/power6.
   2    Copyright (C) 2012-2013 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   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; see the file COPYING.LIB.  If
  17    not, see <http://www.gnu.org/licenses/>.  */
  18
  19 #include <wchar.h>
  20
  21
  22 /* Find the first occurrence of WC in WCS.  */
  23 wchar_t *
  24 wcschr (wcs, wc)
  25      register const wchar_t *wcs;
  26      register const wchar_t wc;
  27 {
  28   register const wchar_t *wcs2 = wcs + 1;
  29
  30   if (*wcs == wc)
  31     return (wchar_t *) wcs;
  32   if (*wcs == L'\0')
  33     return NULL;
  34
  35   do
  36     {
  37       wcs += 2;
  38
  39       if (*wcs2 == wc)
  40         return (wchar_t *) wcs2;
  41       if (*wcs2 == L'\0')
  42         return NULL;
  43        wcs2 += 2;
  44
  45       if (*wcs == wc)
  46         return (wchar_t *) wcs;
  47       if (*wcs == L'\0')
  48         return NULL;
  49       wcs += 2;
  50
  51       if (*wcs2 == wc)
  52         return (wchar_t *) wcs2;
  53       if (*wcs2 == L'\0')
  54         return NULL;
  55       wcs2 += 2;
  56
  57       if (*wcs == wc)
  58         return (wchar_t *) wcs;
  59       if (*wcs == L'\0')
  60         return NULL;
  61       wcs += 2;
  62
  63       if (*wcs2 == wc)
  64         return (wchar_t *) wcs2;
  65       if (*wcs2 == L'\0')
  66         return NULL;
  67       wcs2 += 2;
  68
  69       if (*wcs == wc)
  70         return (wchar_t *) wcs;
  71       if (*wcs == L'\0')
  72         return NULL;
  73       wcs += 2;
  74
  75       if (*wcs2 == wc)
  76         return (wchar_t *) wcs2;
  77       if (*wcs2 == L'\0')
  78         return NULL;
  79       wcs2 += 2;
  80
  81       if (*wcs == wc)
  82         return (wchar_t *) wcs;
  83     }
  84   while (*wcs != L'\0');
  85
  86   return NULL;
  87 }
  88 libc_hidden_def (wcschr)