* enum.c (enum_min_by, enum_max_by): return nil if no iteration.

  fixed: [ruby-dev:26245]

* eval.c (rb_need_block): ensure a block is given.

* eval.c (backtrace): skip successive frames sharing same node.


git-svn-id: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_8@8590 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/ruby.h b/ruby.h
index db3280b90..e1cbb9482 100644
--- a/ruby.h
+++ b/ruby.h
@@ -543,6 +543,7 @@ VALUE rb_yield _((VALUE));
 VALUE rb_yield_values __((int n, ...));
 VALUE rb_yield_splat _((VALUE));
 int rb_block_given_p _((void));
+void rb_need_block _((void));
 VALUE rb_iterate _((VALUE(*)(VALUE),VALUE,VALUE(*)(ANYARGS),VALUE));
 VALUE rb_rescue _((VALUE(*)(ANYARGS),VALUE,VALUE(*)(ANYARGS),VALUE));
 VALUE rb_rescue2 __((VALUE(*)(ANYARGS),VALUE,VALUE(*)(ANYARGS),VALUE,...));