src/system/libroot/posix/wchar/wcsspn.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 __wcsspn(const wchar_t* wcs, const wchar_t* acceptIn)
  11 {
  12         const wchar_t* wcPointer = wcs;
  13         wchar_t wc;
  14         for (; (wc = *wcPointer) != L'\0'; ++wcPointer) {
  15                 const wchar_t* accept;
  16                 for (accept = acceptIn; *accept != L'\0'; ++accept) {
  17                         if (*accept == wc)
  18                                 break;
  19                 }
  20                 if (*accept == L'\0')
  21                         break;
  22         }
  23
  24         return wcPointer - wcs;
  25 }
  26
  27
  28 B_DEFINE_WEAK_ALIAS(__wcsspn, wcsspn);