From d1bc7caecaf337976351934d5910726106601bd9 Mon Sep 17 00:00:00 2001
From: Tomasz Dabrowski <t.dabrowski@rock-hard.eu>
Date: Fri, 10 Feb 2017 15:17:42 +0100
Subject: Optimization for String#* for 1-byte strings

---
 src/string.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src/string.c')

diff --git a/src/string.c b/src/string.c
index c370e0723..2e8ebda32 100644
--- a/src/string.c
+++ b/src/string.c
@@ -870,7 +870,9 @@ mrb_str_times(mrb_state *mrb, mrb_value self)
   str2 = str_new(mrb, 0, len);
   str_with_class(mrb, str2, self);
   p = RSTR_PTR(str2);
-  if (len > 0) {
+  if (len == 1) {
+    memset(p, RSTRING_PTR(self)[0], len);
+  } else if (len > 0) {
     n = RSTRING_LEN(self);
     memcpy(p, RSTRING_PTR(self), n);
     while (n <= len/2) {
-- 
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