diff options
Diffstat (limited to 'object.c')
-rw-r--r-- | object.c | 7 |
1 files changed, 5 insertions, 2 deletions
@@ -270,8 +270,11 @@ rb_obj_copy_ivar(VALUE dest, VALUE obj) } else { long len = ROBJECT(obj)->as.heap.numiv; - VALUE *ptr = ALLOC_N(VALUE, len); - MEMCPY(ptr, ROBJECT(obj)->as.heap.ivptr, VALUE, len); + VALUE *ptr = 0; + if (len > 0) { + ptr = ALLOC_N(VALUE, len); + MEMCPY(ptr, ROBJECT(obj)->as.heap.ivptr, VALUE, len); + } ROBJECT(dest)->as.heap.ivptr = ptr; ROBJECT(dest)->as.heap.numiv = len; ROBJECT(dest)->as.heap.iv_index_tbl = ROBJECT(obj)->as.heap.iv_index_tbl; |