Add assertion to `RVALUE` size
MODIFY
src/gc.c
src/gc.c
@@ -1609,6 +1609,9 @@ mrb_init_gc(mrb_state *mrb)
{
struct RClass *gc;
+ mrb_static_assert(sizeof(RVALUE) <= sizeof(void*) * 6,
+ "RVALUE size must be within 6 words");
+
gc = mrb_define_module(mrb, "GC");
mrb_define_class_method(mrb, gc, "start", gc_start, MRB_ARGS_NONE());

Add assertion to `RVALUE` size