This commit was manufactured by cvs2svn to create tag

'v1_3_1"_990201'.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_3_1%22_990201@385 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 1 deletions

diff --git a/enum.c b/enum.c
index 2b4b904018..75bc547154 100644
--- a/enum.c
+++ b/enum.c
@@ -6,7 +6,7 @@
   $Date$
   created at: Fri Oct  1 15:15:19 JST 1993
 
-  Copyright (C) 1993-1998 Yukihiro Matsumoto
+  Copyright (C) 1993-1999 Yukihiro Matsumoto
 
 ************************************************/
 
@@ -56,6 +56,7 @@ enum_grep(obj, pat)
 	arg[0] = pat; arg[1] = tmp = rb_ary_new();
 	rb_iterate(rb_each, obj, grep_i, (VALUE)arg);
 
+	if (RARRAY(tmp)->len == 0) return Qnil;
 	return tmp;
     }
 }
@@ -373,7 +374,9 @@ Init_Enumerable()
     rb_define_method(rb_mEnumerable,"sort", enum_sort, 0);
     rb_define_method(rb_mEnumerable,"grep", enum_grep, 1);
     rb_define_method(rb_mEnumerable,"find", enum_find, -1);
+    rb_define_method(rb_mEnumerable,"detect", enum_find, -1);
     rb_define_method(rb_mEnumerable,"find_all", enum_find_all, 0);
+    rb_define_method(rb_mEnumerable,"select", enum_find_all, 0);
     rb_define_method(rb_mEnumerable,"collect", enum_collect, 0);
     rb_define_method(rb_mEnumerable,"min", enum_min, 0);
     rb_define_method(rb_mEnumerable,"max", enum_max, 0);