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* lib/ipaddr.rb (IPAddr#{eql?,hash}): Add IPAddr#{eql?,hash} so

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that an IPAddr object can be used as a hash key, a set element,
  etc.; suggested by Nick Brown <nick@nick-brown.com>.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24388 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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knu 2009-08-04 06:10:42 +00:00
parent 60ab77a16a
commit 61c11677c8
2 changed files with 41 additions and 0 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
Tue Aug 4 15:06:58 2009 Akinori MUSHA <knu@iDaemons.org>
* lib/ipaddr.rb (IPAddr#{eql?,hash}): Add IPAddr#{eql?,hash} so
that an IPAddr object can be used as a hash key, a set element,
etc.; suggested by Nick Brown <nick@nick-brown.com>.
Tue Aug 4 13:07:10 2009 NARUSE, Yui <naruse@ruby-lang.org>
* include/ruby/oniguruma.h (ONIG_SYN_WARN_CC_DUP): defined.

35
lib/ipaddr.rb
View file

@ -331,6 +331,16 @@ class IPAddr
end
include Comparable
# Checks equality used by Hash.
def eql?(other)
return self.class == other.class && self.hash == other.hash && self == other
end
# Returns a hash value used by Hash, Set, and Array classes
def hash
return (@addr.hash << 1) | (ipv4? ? 0 : 1)
end
# Creates a Range object for the network address.
def to_range
begin_addr = (@addr & @mask_addr)
@ -810,4 +820,29 @@ class TC_Operator < Test::Unit::TestCase
end
def test_hash
a1 = IPAddr.new('192.168.2.0')
a2 = IPAddr.new('192.168.2.0')
a3 = IPAddr.new('3ffe:505:2::1')
a4 = IPAddr.new('3ffe:505:2::1')
a5 = IPAddr.new('127.0.0.1')
a6 = IPAddr.new('::1')
h = { a1 => 'ipv4', a2 => 'ipv4', a3 => 'ipv6', a4 => 'ipv6', a5 => 'ipv4', a6 => 'ipv6' }
assert_equal(4, h.size)
assert_equal('ipv4', h[a1])
assert_equal('ipv4', h[a2])
assert_equal('ipv6', h[a3])
assert_equal('ipv6', h[a4])
require 'set'
s = Set[a1, a2, a3, a4, a5, a6]
assert_equal(4, s.size)
assert_equal(true, s.include?(a1))
assert_equal(true, s.include?(a2))
assert_equal(true, s.include?(a3))
assert_equal(true, s.include?(a4))
assert_equal(true, s.include?(a5))
assert_equal(true, s.include?(a6))
end
end