1  /* Test of iswblank() function.
       2     Copyright (C) 2007-2023 Free Software Foundation, Inc.
       3  
       4     This program is free software: you can redistribute it and/or modify
       5     it under the terms of the GNU General Public License as published by
       6     the Free Software Foundation, either version 3 of the License, or
       7     (at your option) any later version.
       8  
       9     This program is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      12     GNU General Public License for more details.
      13  
      14     You should have received a copy of the GNU General Public License
      15     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      16  
      17  #include <config.h>
      18  
      19  #include <wctype.h>
      20  
      21  #include "macros.h"
      22  
      23  /* Check that WEOF is defined.  */
      24  wint_t e = WEOF;
      25  
      26  int
      27  main (void)
      28  {
      29    /* Check that the function exist as a function or as a macro.  */
      30    (void) iswblank (0);
      31    /* Check that the isw* functions map WEOF to 0.  */
      32    ASSERT (!iswblank (e));
      33  
      34    /* Sanity check for the iswblank function.  */
      35    ASSERT (iswblank (L' '));
      36    ASSERT (iswblank (L'\t'));
      37    ASSERT (!iswblank (L'\n'));
      38  
      39    return 0;
      40  }