src/system/libroot/posix/wchar/wcsncmp.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 int
  10 __wcsncmp(const wchar_t* wcs1, const wchar_t* wcs2, size_t count)
  11 {
  12         int cmp = 0;
  13
  14         while (count-- > 0) {
  15                 cmp = *wcs1 - *wcs2++;
  16                         /* note: won't overflow, since our wchar_t is guaranteed to never
  17                            have the highest bit set */
  18
  19                 if (cmp != 0 || *wcs1++ == L'\0')
  20                         break;
  21         }
  22
  23         return cmp;
  24 }
  25
  26
  27 B_DEFINE_WEAK_ALIAS(__wcsncmp, wcsncmp);