cepheid

commit c1e1eafb7745db8b2958ab205defe606149005ab
parent 218983655903e16e2a0578cdefe3c8cd35ab14ac
Author: hhvn <dev@hhvn.uk>
Date:   Sun,  4 Sep 2022 19:20:06 +0100

macro for creating qsort compatible functions

Diffstat:
M
src/body.c
 | 
5
+----
M
src/main.h
 | 
5
+++++

2 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/src/body.c b/src/body.c
@@ -51,10 +51,7 @@ body_cmp(Body *b1, Body *b2) {
 	return (v1 == v2 ? 0 : (v1 > v2 ? 1 : -1));
 }
 
-static int
-body_cmp_sort(const void *a, const void *b) {
-	return body_cmp(*(const Body **)a, *(const Body **)b);
-}
+SORT_FUNC(body_cmp, Body *);
 
 void
 body_sort(Body **bodies, size_t n) {
diff --git a/src/main.h b/src/main.h
@@ -10,6 +10,11 @@
 #define ELEMS(array) (sizeof(array)/sizeof(array[0]))
 #define MAX(a, b) (a > b ? a : b)
 #define MIN(a, b) (a < b ? a : b)
+#define SORT_FUNC(func, type) \
+	static int \
+	func##_sort(const void *a, const void *b) { \
+		return func(*(type*)a, *(type*)b); \
+	}
 
 /* main.c */
 extern Save *save;