* array.c (rb_ary_combination): revisit #combination behavior.

  suggested by David Flanagan.

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@13588 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 5 deletions

diff --git a/array.c b/array.c
index 0c25de070..4c75c6d70 100644
--- a/array.c
+++ b/array.c
@@ -3028,13 +3028,11 @@ rb_ary_combination(VALUE ary, VALUE num)
     RETURN_ENUMERATOR(ary, 1, &num);
     n = NUM2LONG(num);
     len = RARRAY_LEN(ary);
-    if (n < 1 || len < n) {
+    if (len < n) {
 	/* yield nothing */
     }
-    else if (n == 0) {
-	for (i = 0; i < len; i++) {
-	    rb_yield(rb_ary_new2(0));
-	}
+    else if (n <= 0) {
+	rb_yield(rb_ary_new2(0));
     }
     else if (n == 1) {
 	for (i = 0; i < len; i++) {