Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _LINUX_SORT_H
3#define _LINUX_SORT_H
4
5#include <linux/types.h>
6
7/**
8 * cmp_int - perform a three-way comparison of the arguments
9 * @l: the left argument
10 * @r: the right argument
11 *
12 * Return: 1 if the left argument is greater than the right one; 0 if the
13 * arguments are equal; -1 if the left argument is less than the right one.
14 */
15#define cmp_int(l, r) (((l) > (r)) - ((l) < (r)))
16
17void sort_r(void *base, size_t num, size_t size,
18 cmp_r_func_t cmp_func,
19 swap_r_func_t swap_func,
20 const void *priv);
21
22void sort(void *base, size_t num, size_t size,
23 cmp_func_t cmp_func,
24 swap_func_t swap_func);
25
26/* Versions that periodically call cond_resched(): */
27
28void sort_r_nonatomic(void *base, size_t num, size_t size,
29 cmp_r_func_t cmp_func,
30 swap_r_func_t swap_func,
31 const void *priv);
32
33void sort_nonatomic(void *base, size_t num, size_t size,
34 cmp_func_t cmp_func,
35 swap_func_t swap_func);
36
37#endif