From c635c994d1b1725f2b6994e6538a33f0bf8c92e8 Mon Sep 17 00:00:00 2001
From: Mike Mackintosh <m@zyp.io>
Date: Mon, 26 Jan 2015 16:38:10 -0500
Subject: use the #to_ipv6 method, faster

---
 lib/ipaddress/ipv4.rb | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'lib')

diff --git a/lib/ipaddress/ipv4.rb b/lib/ipaddress/ipv4.rb
index 0cb30ab..a32a4a0 100644
--- a/lib/ipaddress/ipv4.rb
+++ b/lib/ipaddress/ipv4.rb
@@ -239,9 +239,8 @@ module IPAddress;
     #   ip.to_h
     #     #=> 0a000000
     #
-    def hex
-      hex = @octets.map{|o| o.to_s(16).rjust(2, '0') }.join()
-      "#{hex}"
+    def hex(space=true)
+      "%.4x%.4x" % [to_u32].pack("N").unpack("nn")
     end
     alias_method :to_h, :hex
     alias_method :to_hex, :hex   
-- 
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