From 523ecd29b8acef4faa47331aaf1c6bf128b29ad6 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 14 Apr 2015 03:31:28 +0000
Subject: use frozen string of symbols

* range.c (range_step, range_each): String#upto should never
  modifies the receiver, use frozen strings to enumerate symbols.

* re.c (reg_operand): matching target is not modified.

* ext/socket/constants.c (constant_arg): str_to_int never modifies
  argument strings.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50306 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 re.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 're.c')

diff --git a/re.c b/re.c
index 7e789f56df..207a77d272 100644
--- a/re.c
+++ b/re.c
@@ -2753,7 +2753,7 @@ static VALUE
 reg_operand(VALUE s, int check)
 {
     if (SYMBOL_P(s)) {
-	return rb_sym_to_s(s);
+	return rb_sym2str(s);
     }
     else {
 	return (check ? rb_str_to_str : rb_check_string_type)(s);
-- 
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