1  /* Test for open_memstream implementation.
       2     Copyright (C) 2016-2023 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"