sys_stat: Fix 'implicit declaration of function' warning on OS/2 kLIBC.
[gnulib.git] / lib / qsort_r.c
blob0d45fe7338eeb282edb85f7729e637acd215d0e7
1 /* Reentrant sort function.
3 Copyright 2014-2019 Free Software Foundation, Inc.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2, or (at your option)
8 any later version.
10 This program 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
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License along
16 with this program; if not, see <https://www.gnu.org/licenses/>. */
18 /* Written by Paul Eggert. */
20 #include <config.h>
22 #include <stdlib.h>
24 /* This file is compiled only when the system has a qsort_r that needs
25 to be replaced because it has the BSD signature rather than the GNU
26 signature. */
28 struct thunk
30 int (*cmp) (void const *, void const *, void *);
31 void *arg;
34 static int
35 thunk_cmp (void *thunk, void const *a, void const *b)
37 struct thunk *th = thunk;
38 return th->cmp (a, b, th->arg);
41 void
42 qsort_r (void *base, size_t nmemb, size_t size,
43 int (*cmp) (void const *, void const *, void *),
44 void *arg)
46 # undef qsort_r
47 struct thunk thunk;
48 thunk.cmp = cmp;
49 thunk.arg = arg;
50 qsort_r (base, nmemb, size, &thunk, thunk_cmp);