merges r25243 from trunk into ruby_1_9_1.

--
* struct.c (rb_struct_select): Struct#select should return
  enumerator when no block given.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@26472 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/struct.c b/struct.c
index 79403a5fb6..92d375d548 100644
--- a/struct.c
+++ b/struct.c
@@ -750,6 +750,7 @@ rb_struct_select(int argc, VALUE *argv, VALUE s)
     if (argc > 0) {
 	rb_raise(rb_eArgError, "wrong number of arguments (%d for 0)", argc);
     }
+    RETURN_ENUMERATOR(s, 0, 0);
     result = rb_ary_new();
     for (i = 0; i < RSTRUCT_LEN(s); i++) {
 	if (RTEST(rb_yield(RSTRUCT_PTR(s)[i]))) {