1  /* Test printf with grouping and large width (bug 29530)
       2     Copyright (C) 2022-2023 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 <locale.h>
      20  #include <stdio.h>
      21  #include <support/check.h>
      22  #include <support/support.h>
      23  
      24  static int
      25  do_test (void)
      26  {
      27    const int field_width = 1000;
      28    char buf[field_width + 1];
      29  
      30    xsetlocale (LC_NUMERIC, "de_DE.UTF-8");
      31  
      32    /* This used to crash in group_number.  */
      33    TEST_COMPARE (sprintf (buf, "%'*d", field_width, 1000), field_width);
      34    TEST_COMPARE_STRING (buf + field_width - 6, " 1.000");
      35  
      36    return 0;
      37  }
      38  
      39  #include <support/test-driver.c>