get rid of function calls in RSTRING_PTR

* process.c (rlimit_resource_type, rlimit_resource_value): get rid
  of function calls in RSTRING_PTR(), as it evaluates the argument
  twice.

* re.c (match_backref_number): ditto.

* signal.c (esignal_init, rb_f_kill, trap_signm): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47006 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 2 deletions

diff --git a/re.c b/re.c
index 4bf18f5e84..d110fe63ef 100644
--- a/re.c
+++ b/re.c
@@ -1082,8 +1082,8 @@ match_backref_number(VALUE match, VALUE backref)
         return NUM2INT(backref);
 
       case T_SYMBOL:
-        name = RSTRING_PTR(rb_sym2str(backref));
-        break;
+	backref = rb_sym2str(backref);
+	/* fall through */
 
       case T_STRING:
         name = StringValueCStr(backref);