# \[Bug #736\] Range#include? $B$,CY$$(B

**URL:** <https://www.ruby-forum.com/t/bug-736-range-include-b-cy-b/152924>\
**Category:** Development\
**Created:** [November 9, 2008, 9:44pm UTC](https://www.ruby-forum.com/t/bug-736-range-include-b-cy-b/152924 "2008-11-09T21:44:24Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![rubikitch\_S](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/46a35a/32.png) [@rubikitch\_S](https://www.ruby-forum.com/u/rubikitch_S)\
**Post date:** [November 9, 2008, 9:44pm UTC](https://www.ruby-forum.com/t/bug-736-range-include-b-cy-b/152924/1 "2008-11-09T21:44:24Z")

</div>

Bug #736: Range#include? e$B$,CY$$e(B  
[http://redmine.ruby-lang.org/issues/show/736](http://redmine.ruby-lang.org/issues/show/736)

e$B5/I\<\<Te(B: rubikitch .  
e$B%9%F!\<%?%9e(B: Open, e$BM%@hEYe(B: Normal

Ruby 1.9e$B$Ge(BRange#include?e$B$,$b$N$9$4$$CY$$$h$&$G$9!#e(B

require ‘benchmark’  
RUBY\_VERSION # =\> “1.8.7”  
Benchmark.bmbm(10) do |b|  
n = 100  
b.report(“include”) { n.times{ (“an”…“ruby”).include? “elf” }}  
b.report(“between”) { n.times{ “elf”.between?(“an”,“ruby”) }}  
end

# \>\> Rehearsal ---------------------------------------------

# \>\> include 0.000000 0.000000 0.000000 ( 0.000278)

# \>\> between 0.000000 0.000000 0.000000 ( 0.000113)

# \>\> ------------------------------------ total: 0.000000sec

# \>\>

# \>\> user system total real

# \>\> include 0.000000 0.000000 0.000000 ( 0.000233)

# \>\> between 0.000000 0.000000 0.000000 ( 0.000113)

require ‘benchmark’  
RUBY\_VERSION # =\> “1.9.0”  
Benchmark.bmbm(10) do |b|  
n = 100  
b.report(“include”) { n.times{ (“an”…“ruby”).include? “elf” }}  
b.report(“between”) { n.times{ “elf”.between?(“an”,“ruby”) }}  
end

# \>\> Rehearsal ---------------------------------------------

# \>\> include 0.420000 0.000000 0.420000 ( 0.417621)

# \>\> between 0.000000 0.000000 0.000000 ( 0.000116)

# \>\> ------------------------------------ total: 0.420000sec

# \>\>

# \>\> user system total real

# \>\> include 0.420000 0.000000 0.420000 ( 0.422576)

# \>\> between 0.000000 0.000000 0.000000 ( 0.000120)

---

<div class="post-metadata">

**Author:** ![rubikitch\_S](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/46a35a/32.png) [@rubikitch\_S](https://www.ruby-forum.com/u/rubikitch_S)\
**Post date:** [November 9, 2008, 9:56pm UTC](https://www.ruby-forum.com/t/bug-736-range-include-b-cy-b/152924/2 "2008-11-09T21:56:09Z")

</div>

e$B$^$D$b$He(B e$B$f$-$R$m$G$9e(B

In message “Re: [ruby-dev:37051] [Bug #736] Range#include?  
e$B$,CY$$e(B”  
on Mon, 10 Nov 2008 05:41:10 +0900, “rubikitch .”  
[removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes:

|Ruby 1.9e$B$Ge(BRange#include?e$B$,$b$N$9$4$$CY$$$h$&$G$9!#e(B

1.9e$B$G$Oe(Binclude?e$B$O$=$NCM$,e(Beache$B$5$l$kMWAG$K4^$^$l$k$+$I$&$+$re(B  
e$B%A%'%C%/$9$k$h$&$K$J$j$^$7$?!#$3$l$O0lHL$KBg\>.4X78$NHf3Se(B(1.8  
e$B$G$NHf3Se(B)e$B$h$j$b$b$N$9$4$$CY$$$N$O;EJ}$,$J$$$H;W$$$^$9!#e(B

- between?
- cover? (e$B?7@\_e(B)

e$B$r;H$C$F$/$@$5$$!#e(B