abbreviate an increment

diff --git a/lib/neatogen/heap.c b/lib/neatogen/heap.c
index 8c16aa3ed7ec8b335c2fb5aa1b3904cc5073104e..88d0552230a8eee83c519fded9d978fbd8fbe68c 100644 (file)
--- a/lib/neatogen/heap.c
+++ b/lib/neatogen/heap.c
@@ -134,7 +134,7 @@ void PQdump(void)
     int i;
     Halfedge *p;
 
-    for (i = 0; i < PQhashsize; i += 1) {
+    for (i = 0; i < PQhashsize; ++i) {
        printf("[%d]\n", i);
        p = PQhash[i].PQnext;
        while (p != NULL) {