libc/string/strcspn.c

   1 /*
   2  * Copyright (C) 2002     Manuel Novoa III
   3  * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
   4  *
   5  * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
   6  */
   7
   8 #include "_string.h"
   9
  10 #ifdef WANT_WIDE
  11 # define Wstrcspn wcscspn
  12 #else
  13 # define Wstrcspn strcspn
  14 #endif
  15
  16 size_t Wstrcspn(const Wchar *s1, const Wchar *s2)
  17 {
  18         register const Wchar *s;
  19         register const Wchar *p;
  20
  21         for ( s=s1 ; *s ; s++ ) {
  22                 for ( p=s2 ; *p ; p++ ) {
  23                         if (*p == *s) goto done;
  24                 }
  25         }
  26  done:
  27         return s - s1;
  28 }
  29
  30 #ifndef WANT_WIDE
  31 libc_hidden_def(strcspn)
  32 #endif