Fix realloc_test to check GC_malloc result for NULL

* tests/realloc_test.c (main): Prevent NULL pointer dereference
(exit with an error message in case of NULL returned by GC_malloc).

diff --git a/tests/realloc_test.c b/tests/realloc_test.c
index 370ba4665dbaaa18e58aac38e1222959dba743ec..1c1668f27d083c4d50ce9cdd92bb8c37642d1887 100644 (file)
--- a/tests/realloc_test.c
+++ b/tests/realloc_test.c
@@ -15,8 +15,8 @@ int main(void) {
     int **p = GC_MALLOC(sizeof(int *));
     int *q = GC_MALLOC_ATOMIC(sizeof(int));
 
-    if (*p != 0) {
-      fprintf(stderr, "GC_malloc returned garbage\n");
+    if (p == 0 || *p != 0) {
+      fprintf(stderr, "GC_malloc returned garbage (or NULL)\n");
       exit(1);
     }