* range.c (rb_range_beg_len): returns Qnil only when "beg" points

  outside of a range.  No boundary check for "end".


git-svn-id: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_8@6692 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 1 deletions

diff --git a/string.c b/string.c
index e2dc44ee5..7dd824186 100644
--- a/string.c
+++ b/string.c
@@ -1543,7 +1543,8 @@ rb_str_aref(str, indx)
  *     a[1..3]                #=> "ell"
  *     a[-3,2]                #=> "er"
  *     a[-4..-2]              #=> "her"
- *     a[-2..-4]              #=> nil
+ *     a[12..-1]              #=> nil
+ *     a[-2..-4]              #=> ""
  *     a[/[aeiou](.)\1/]      #=> "ell"
  *     a[/[aeiou](.)\1/, 0]   #=> "ell"
  *     a[/[aeiou](.)\1/, 1]   #=> "l"