src/system/libroot/posix/wchar/wcpncpy.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 wchar_t*
  10 __wcpncpy(wchar_t* dest, const wchar_t* src, size_t n)
  11 {
  12         const wchar_t* srcEnd = src + n;
  13         wchar_t* destEnd = dest + n;
  14
  15         while (src < srcEnd && *src != L'\0')
  16                 *dest++ = *src++;
  17
  18         if (dest < destEnd) {
  19                 while (--destEnd >= dest)
  20                         *destEnd = L'\0';
  21         }
  22
  23         return dest;
  24 }
  25
  26
  27 B_DEFINE_WEAK_ALIAS(__wcpncpy, wcpncpy);