* class.c (rb_include_module): detect cyclic module inclusion.

* eval.c (rb_thread_cleanup): need not to free thread stacks at
  process termination.

* array.c (rb_ary_fetch): use the block to get the default value
  if the block is given.

* eval.c (rb_thread_schedule): should check time only if BOTH
  WAIT_SELECT and WAIT_TIME.

* eval.c (umethod_bind): should update rklass field.

* hash.c (rb_hash_update): if a block is given, yields [key,
  value1, value2] to the block to resolve conflict.

* string.c (rb_str_split_m): no need to consider KANJI
characters, if the length of separator is 1 (byte).


git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@2015 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 10 insertions, 2 deletions

diff --git a/array.c b/array.c
index 55ee37ff8..f4ec7070a 100644
--- a/array.c
+++ b/array.c
@@ -550,8 +550,16 @@ rb_ary_fetch(argc, argv, ary)
 	idx +=  RARRAY(ary)->len;
     }
     if (idx < 0 || RARRAY(ary)->len <= idx) {
-	if (argc == 2) return ifnone;
-	rb_raise(rb_eIndexError, "index %d out of array", idx);
+	if (rb_block_given_p()) {
+	    if (argc > 1) {
+		rb_raise(rb_eArgError, "wrong number of arguments");
+	    }
+	    return rb_yield(pos);
+	}
+	if (argc == 1) {
+	    rb_raise(rb_eIndexError, "index %d out of array", idx);
+	}
+	return ifnone;
     }
     return RARRAY(ary)->ptr[idx];
 }