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/* Test qsort_r.
Copyright 2014-2020 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>
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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