1 /*
2  * Copyright 2016      Sven Verdoolaege
3  *
4  * Use of this software is governed by the MIT license
5  *
6  * Written by Sven Verdoolaege
7  */
8 
9 #include <isl_multi_macro.h>
10 
11 /* Compare two multi expressions.
12  *
13  * Return -1 if "multi1" is "smaller" than "multi2", 1 if "multi1" is "greater"
14  * than "multi2" and 0 if they are equal.
15  */
FN(MULTI (BASE),plain_cmp)16 int FN(MULTI(BASE),plain_cmp)(__isl_keep MULTI(BASE) *multi1,
17 	__isl_keep MULTI(BASE) *multi2)
18 {
19 	int i;
20 	int cmp;
21 
22 	if (multi1 == multi2)
23 		return 0;
24 	if (!multi1)
25 		return -1;
26 	if (!multi2)
27 		return 1;
28 
29 	cmp = isl_space_cmp(multi1->space, multi2->space);
30 	if (cmp != 0)
31 		return cmp;
32 
33 	for (i = 0; i < multi1->n; ++i) {
34 		cmp = FN(EL,plain_cmp)(multi1->u.p[i], multi2->u.p[i]);
35 		if (cmp != 0)
36 			return cmp;
37 	}
38 
39 	return 0;
40 }
41