* array.c (rb_ary_equal): a == b is true when b is non T_ARRAY

  object, if b has "to_ary" and b == a.

* hash.c (rb_hash_equal): a == b is true when b is non T_HASH
  object, if b has "to_hash" and b == a.

* string.c (rb_str_equal): a == b is true when b is non T_STRING
  object, if b has "to_str" and b == a.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3442 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 3 deletions

diff --git a/io.c b/io.c
index a112656129..79f37c9d20 100644
--- a/io.c
+++ b/io.c
@@ -3037,9 +3037,10 @@ argf_getline(argc, argv)
 	next_p = 1;
 	goto retry;
     }
-    gets_lineno++;
-    lineno = INT2FIX(gets_lineno);
-
+    if (!NIL_P(line)) {
+	gets_lineno++;
+	lineno = INT2FIX(gets_lineno);
+    }
     return line;
 }