libio/tst-wmemstream3.c

   1 /* Test for open_memstream implementation.
   2    Copyright (C) 2016-2024 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <wchar.h>
  20
  21 /* Straightforward implementation so tst-memstream3 could use check
  22    fwrite on open_memstream.  */
  23 static size_t
  24 fwwrite (const void *ptr, size_t size, size_t nmemb, FILE *arq)
  25 {
  26   const wchar_t *wcs = (const wchar_t*) (ptr);
  27   for (size_t s = 0; s < size; s++)
  28     {
  29       for (size_t n = 0; n < nmemb; n++)
  30         if (fputwc (wcs[n], arq) == WEOF)
  31           return n;
  32     }
  33   return size * nmemb;
  34 }
  35
  36 #define CHAR_T wchar_t
  37 #define W(o) L##o
  38 #define OPEN_MEMSTREAM open_wmemstream
  39 #define PRINTF wprintf
  40 #define FWRITE_FUNC fwwrite
  41 #define FPUTC  fputwc
  42 #define STRCMP wcscmp
  43
  44 #include "tst-memstream3.c"