From: Edoardo Rossi <edd.rossi@...>
Date: 2013-05-01T06:58:38+09:00
Subject: Re: is there any performance difference between Range#include? and Range#cover?

On Tue, Apr 30, 2013 at 11:17 PM, Joel Pearson <lists@ruby-forum.com> wrote:
> I'd expect cover to perform better in a benchmark, since it checks the
> min-max rather than the entire range.
>
> --
> Posted via http://www.ruby-forum.com/.
>

Humm...

irb(main):010:0> require 'benchmark'
=> true
irb(main):011:0> Benchmark.bm do |x|
irb(main):012:1* x.report('include') { 10000000.times {
(0..99).include?(rand(1000))}}
irb(main):013:1> x.report('cover') { 10000000.times {
(0..99).cover?(rand(1000))}}
irb(main):014:1> end
       user     system      total        real
include  5.790000   0.000000   5.790000 (  5.802889)
cover  5.830000   0.000000   5.830000 (  5.826916)

Hope this helps... but maybe my benchmark is not accurate as it should be?

e.