Extra utility function.

[originally from svn r6780]
2025-04-20 23:51:29 -07:00 · 2006-08-05 16:35:25 +00:00
parent 6837cc46cd
commit f05c25347d
2 changed files with 9 additions and 0 deletions
--- a/dsf.c
+++ b/dsf.c
@ -28,3 +28,11 @@ void dsf_merge(int *dsf, int v1, int v2)
    v2 = dsf_canonify(dsf, v2);
    dsf[v2] = v1;
 }
+
+void dsf_init(int *dsf, int len)
+{
+    int i;
+
+    for (i = 0; i < len; i++)
+	dsf[i] = i;
+}
--- a/puzzles.h
+++ b/puzzles.h
@ -280,6 +280,7 @@ void draw_rect_outline(drawing *dr, int x, int y, int w, int h,
 */
 int dsf_canonify(int *dsf, int val);
 void dsf_merge(int *dsf, int v1, int v2);
+void dsf_init(int *dsf, int len);

 /*
 * version.c