1 files changed, 21 insertions, 0 deletions
diff --git a/numeric.c b/numeric.c
index bf9452e5b3..aee2563418 100644
--- a/numeric.c
+++ b/numeric.c
@@ -1925,6 +1925,26 @@ int_chr(int argc, VALUE *argv, VALUE num)
     return str;
 }
 
+/*
+ *  call-seq:
+ *     int.ord    => int
+ *
+ *  Returns the int itself.
+ *
+ *     ?a.ord    #=> 97
+ *
+ *  This method is intended for compatibility to
+ *  character constant in Ruby 1.9.
+ *  For example, ?a.ord returns 97 both in 1.8 and 1.9.
+ */
+
+static VALUE
+int_ord(num)
+    VALUE num;
+{
+    return num;
+}
+
 static VALUE
 int_numerator(VALUE num)
 {
@@ -3123,6 +3143,7 @@ Init_Numeric(void)
     rb_define_method(rb_cInteger, "next", int_succ, 0);
     rb_define_method(rb_cInteger, "pred", int_pred, 0);
     rb_define_method(rb_cInteger, "chr", int_chr, -1);
+    rb_define_method(rb_cInteger, "ord", int_ord, 0);
     rb_define_method(rb_cInteger, "to_i", int_to_i, 0);
     rb_define_method(rb_cInteger, "to_int", int_to_i, 0);
     rb_define_method(rb_cInteger, "floor", int_to_i, 0);