should not continue loop when ci = NULL

matz · matz · commit d1526b0409a3 · 2014-02-27T19:00:37.000+09:00
diff --git a/src/gc.c b/src/gc.c
@@ -462,7 +462,7 @@ mark_context(mrb_state *mrb, struct mrb_context *c)
   }
   /* mark closure */
   for (ci = c->cibase; ci <= c->ci; ci++) {
-    if (!ci) continue;
+    if (!ci) break;
     mrb_gc_mark(mrb, (struct RBasic*)ci->env);
     mrb_gc_mark(mrb, (struct RBasic*)ci->proc);
     mrb_gc_mark(mrb, (struct RBasic*)ci->target_class);

Original file line number	Diff line number	Diff line change
`@@ -462,7 +462,7 @@ mark_context(mrb_state mrb, struct mrb_context c)`
`462`	`462`	`}`
`463`	`463`	`/* mark closure */`
`464`	`464`	`for (ci = c->cibase; ci <= c->ci; ci++) {`
`465`		`- if (!ci) continue;`
	`465`	`+ if (!ci) break;`
`466`	`466`	`mrb_gc_mark(mrb, (struct RBasic*)ci->env);`
`467`	`467`	`mrb_gc_mark(mrb, (struct RBasic*)ci->proc);`
`468`	`468`	`mrb_gc_mark(mrb, (struct RBasic*)ci->target_class);`