From 7a65a9fbe0cefdf504e7d735003065d8bb874f1e Mon Sep 17 00:00:00 2001
From: Alban Peignier
Date: Wed, 27 Dec 2017 21:23:07 +0100
Subject: Add Range#intersect?. Refs #5299

---
 lib/range_ext.rb | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'lib')

diff --git a/lib/range_ext.rb b/lib/range_ext.rb
index a6a3bfc5d..e7e0e903f 100644
--- a/lib/range_ext.rb
+++ b/lib/range_ext.rb
@@ -1,11 +1,15 @@
 class Range
 
   def intersection(other)
-    return nil if (self.max < other.min or other.max < self.min)
+    return nil unless intersect?(other)
     [self.min, other.min].max..[self.max, other.max].min
   end
   alias_method :&, :intersection
 
+  def intersect?(other)
+    self.max > other.min and other.max > self.min
+  end
+
   def remove(other)
     return self if (self.max < other.min or other.max < self.min)
 
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