libio/tst-memstream.h

   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