1  /* Common definitions for open_memstream tests.
       2     Copyright (C) 2018-2023 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 <mcheck.h>
      20  #include <stdio.h>
      21  #include <stdlib.h>
      22  #include <string.h>
      23  #include <stdarg.h>
      24  #include <errno.h>
      25  
      26  #include <support/check.h>
      27  
      28  #ifdef TEST_WCHAR
      29  # include <wchar.h>
      30  
      31  /* Straightforward implementation so tst-memstream3 could use check
      32     fwrite on open_memstream.  */
      33  static size_t __attribute__ ((used))
      34  fwwrite (const void *ptr, size_t size, size_t nmemb, FILE *arq)
      35  {
      36    const wchar_t *wcs = (const wchar_t*) (ptr);
      37    for (size_t s = 0; s < size; s++)
      38      {
      39        for (size_t n = 0; n < nmemb; n++)
      40          if (fputwc (wcs[n], arq) == WEOF)
      41            return n;
      42      }
      43    return size * nmemb;
      44  }
      45  
      46  # define CHAR_T wchar_t
      47  # define W(o) L##o
      48  # define OPEN_MEMSTREAM open_wmemstream
      49  # define PRINTF wprintf
      50  # define FWRITE fwwrite
      51  # define FPUTC  fputwc
      52  # define FPUTS  fputws
      53  # define STRCMP wcscmp
      54  # define STRLEN wcslen
      55  #else
      56  # define CHAR_T char
      57  # define W(o) o
      58  # define OPEN_MEMSTREAM open_memstream
      59  # define PRINTF printf
      60  # define FWRITE fwrite
      61  # define FPUTC fputc
      62  # define FPUTS  fputs
      63  # define STRCMP strcmp
      64  # define STRLEN strlen
      65  #endif
      66  
      67  #define S(s) S1 (s)
      68  #define S1(s) #s