kc3-lang/gnulib/tests/test-qsort_r.c

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• Hash : 7b089321
  Author :
  Date : 2025-01-01T09:24:36
  

  maint: run 'make update-copyright'
  

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• tests/test-qsort_r.c

• /* Test qsort_r.
  
     Copyright 2014-2025 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  
  /* Written by Paul Eggert.  */
  
  #include <config.h>
  
  #include <stdlib.h>
  #include <string.h>
  
  static int
  cmp (void const *va, void const *vb, void *varg)
  {
    char const *a = va;
    char const *b = vb;
    int *arg = varg;
    return (*a < *b ? -1 : *a > *b) * *arg;
  }
  
  int
  main (void)
  {
    char buf[] = "thequickbrownfoxjumpedoverthelazydogs";
    int forward = 1;
    int reverse = -1;
    qsort_r (buf, sizeof buf - 1, 1, cmp, &forward);
    if (strcmp (buf, "abcddeeeefghhijklmnoooopqrrsttuuvwxyz") != 0)
      return 1;
    qsort_r (buf, sizeof buf - 1, 1, cmp, &reverse);
    if (strcmp (buf, "zyxwvuuttsrrqpoooonmlkjihhgfeeeeddcba") != 0)
      return 1;
    return 0;
  }
  

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