1  /* This file is part of the GNU C Library.
       2     Copyright (C) 2012-2023 Free Software Foundation, Inc.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library 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 GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <array_length.h>
      19  #include <wchar.h>
      20  
      21  /* Prototype for our test function.  */
      22  static int do_test (void);
      23  
      24  static int
      25  do_test (void)
      26  {
      27  #ifndef NO_LONG_DOUBLE
      28    int result = 0;
      29    const long double x = 24.5;
      30    wchar_t a[16];
      31    swprintf (a, array_length (a), L"%La\n", x);
      32    wchar_t A[16];
      33    swprintf (A, array_length (a), L"%LA\n", x);
      34  
      35    /* Here wprintf can return four valid variants.  We must accept all
      36       of them.  */
      37    result |= (wmemcmp (a, L"0xc.4p+1", 8) == 0
      38  	     && wmemcmp (A, L"0XC.4P+1", 8) == 0);
      39    result |= (wmemcmp (a, L"0x3.1p+3", 8) == 0
      40  	     && wmemcmp (A, L"0X3.1P+3", 8) == 0);
      41    result |= (wmemcmp (a, L"0x6.2p+2", 8) == 0
      42  	     && wmemcmp (A, L"0X6.2P+2", 8) == 0);
      43    result |= (wmemcmp (a, L"0x1.88p+4", 8) == 0
      44  	     && wmemcmp (A, L"0X1.88P+4", 8) == 0);
      45  
      46    return result != 1;
      47  #else
      48    return 0;
      49  #endif
      50  }
      51  
      52  #define TEST_FUNCTION do_test ()
      53  #include "../test-skeleton.c"