From 5c15aa2f3b7bca49b49384951fc5aba1e36bfd79 Mon Sep 17 00:00:00 2001 From: "Yukihiro \"Matz\" Matsumoto" Date: Tue, 17 Apr 2018 12:34:30 +0900 Subject: Make `ary_concat()` to replace the receiver when it is empty. --- src/array.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'src/array.c') diff --git a/src/array.c b/src/array.c index 270193e09..09de566f8 100644 --- a/src/array.c +++ b/src/array.c @@ -285,11 +285,17 @@ mrb_ary_s_create(mrb_state *mrb, mrb_value klass) return ary; } +static void ary_replace(mrb_state*, struct RArray*, struct RArray*); + static void ary_concat(mrb_state *mrb, struct RArray *a, struct RArray *a2) { mrb_int len; + if (ARY_LEN(a) == 0) { + ary_replace(mrb, a, a2); + return; + } if (ARY_LEN(a2) > ARY_MAX_SIZE - ARY_LEN(a)) { mrb_raise(mrb, E_ARGUMENT_ERROR, "array size too big"); } -- cgit v1.2.3