src/system/libroot/posix/wchar/wcscspn.c

   1 /*
   2 ** Copyright 2011, Oliver Tappe, zooey@hirschkaefer.de. All rights reserved.
   3 ** Distributed under the terms of the Haiku License.
   4 */
   5
   6 #include <wchar_private.h>
   7
   8
   9 size_t
  10 __wcscspn(const wchar_t* wcs, const wchar_t* rejectIn)
  11 {
  12         const wchar_t* wcPointer = wcs;
  13         wchar_t wc;
  14         for (; (wc = *wcPointer) != L'\0'; ++wcPointer) {
  15                 const wchar_t* reject;
  16                 for (reject = rejectIn; *reject != L'\0'; ++reject) {
  17                         if (*reject == wc)
  18                                 return wcPointer - wcs;
  19                 }
  20         }
  21
  22         return wcPointer - wcs;
  23 }
  24
  25 B_DEFINE_WEAK_ALIAS(__wcscspn, wcscspn);