Constrain the values of a and b in function not to be both NULL (rack…

…et#3106) Fixes racket#2686
yurkobb · Apr 17, 2020 · 876aff8 · 876aff8
1 parent 734491b
commit 876aff8
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/racket/src/racket/src/thread.c b/racket/src/racket/src/thread.c
@@ -6450,7 +6450,9 @@ static void *splice_ptr_array(void **a, int al, void **b, int bl, int i)
 {
   void **r;
   int j;
-
+
+  MZ_ASSERT (a != NULL || b != NULL);
+
   r = MALLOC_N(void*, al + bl - 1);
 
   if (a)