From 219ad6258a80d0083ddb2f64a01eaa63e542c620 Mon Sep 17 00:00:00 2001
From: gogotanaka <mail@tanakakazuki.com>
Date: Wed, 12 Nov 2014 16:16:43 -0800
Subject: [PATCH 1/2] *numeric.c: block can be passed to #eql?

---
 numeric.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/numeric.c b/numeric.c
index 6819e4a..a002454 100644
--- a/numeric.c
+++ b/numeric.c
@@ -1049,15 +1049,22 @@ flo_pow(VALUE x, VALUE y)
  *
  *  Returns +true+ if +num+ and +numeric+ are the same type and have equal
  *  values.
- *
- *     1 == 1.0          #=> true
- *     1.eql?(1.0)       #=> false
- *     (1.0).eql?(1.0)   #=> true
+ *  If the optional +block+ is given, compare between results of running +block+ for +num+ and +numeric+.
+ *
+ *     1 == 1.0                  #=> true
+ *     1.eql?(1.0)               #=> false
+ *     (1.0).eql?(1.0)           #=> true
+ *     4.eql?(6) { |n| n % 2 }   #=> true
+ *     3.eql?(-3, &:abs)         #=> true
+ *     1.eql?(1.0, &:itself)     #=> true
  */

 static VALUE
 num_eql(VALUE x, VALUE y)
 {
+    if (rb_block_given_p()) {
+        return rb_equal(rb_yield(x), rb_yield(y));
+    }
     if (TYPE(x) != TYPE(y)) return Qfalse;

     return rb_equal(x, y);
--
1.9.3 (Apple Git-50)