# \[Bug #1329\] Ruby 1.8.8 $B$G(B "p eval('0' + '+0.1'\*n)" $B$,(B Segmentation Fault $B$rH/@8$5$;$

**URL:** <https://www.ruby-forum.com/t/bug-1329-ruby-1-8-8-b-g-b-p-eval-0-0-1-n-b-b-segmentation-fault-b-rh-8-5/164206>\
**Category:** Development\
**Created:** [March 29, 2009, 10:58pm UTC](https://www.ruby-forum.com/t/bug-1329-ruby-1-8-8-b-g-b-p-eval-0-0-1-n-b-b-segmentation-fault-b-rh-8-5/164206 "2009-03-29T22:58:47Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Kenta\_M](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/b5a626/32.png) [@Kenta\_M](https://www.ruby-forum.com/u/Kenta_M)\
**Post date:** [March 29, 2009, 10:58pm UTC](https://www.ruby-forum.com/t/bug-1329-ruby-1-8-8-b-g-b-p-eval-0-0-1-n-b-b-segmentation-fault-b-rh-8-5/164206/1 "2009-03-29T22:58:47Z")

</div>

Bug #1329: Ruby 1.8.8 e$B$Ge(B “p eval(‘0’ + ‘+0.1’\*n)” e$B$,e(B  
Segmentation Fault e$B$rH/@8$5$;$ke(B  
[http://redmine.ruby-lang.org/issues/show/1329](http://redmine.ruby-lang.org/issues/show/1329)

e$B5/I\<\<Te(B: Kenta M.  
e$B%9%F!\<%?%9e(B: Open, e$BM%@hEYe(B: Normal  
e$B%+%F%4%je(B: core, Target version: Ruby 1.8.8  
ruby -v: ruby 1.8.8dev (2009-03-19) [i386-darwin9.6.0]

“p eval(‘0’ + ‘+0.1’\*n)” e$B$rI\>2A$9$k$H!“e(B  
n e$B$,$”$kCMe(B N1 e$B$rD6$($?$H$-$Ke(B TypeError e$B$,!“e(B  
N2 e$B$rD6$($?$H$-$Ke(B Segmentation Fault e$B$,H/@8$7$^$9!#e(B  
N1 e$B$He(B N2 e$B$,%”!\<%-%F%/%A%c$K0MB8$9$k$+$I$&$+$OD4$Y$F$^$;$s!#e(B

$ ~/ruby-1.8.8-r23009/bin/ruby -ve “p eval(‘0’+‘+0.1’\*4581)”  
ruby 1.8.8dev (2009-03-19) [i386-darwin9.6.0]  
458.100000000036  
$ ~/ruby-1.8.8-r23009/bin/ruby -ve “p eval(‘0’+‘+0.1’\*4582)”  
ruby 1.8.8dev (2009-03-19) [i386-darwin9.6.0]  
-e:1: can’t modify frozen string (TypeError)  
$ ~/ruby-1.8.8-r23009/bin/ruby -ve “p eval(‘0’+‘+0.1’\*5132)”  
ruby 1.8.8dev (2009-03-19) [i386-darwin9.6.0]  
-e:1: can’t modify frozen string (TypeError)  
$ ~/ruby-1.8.8-r23009/bin/ruby -ve “p eval(‘0’+‘+0.1’\*5133)”  
ruby 1.8.8dev (2009-03-19) [i386-darwin9.6.0]  
Segmentation fault

eval e$B$7$J$1$l$Pe(B TypeError e$B$be(B SEGV  
e$B$bH/@8$7$J$$$3$H$O3NG’:Q$G$9!#e(B

$ ~/ruby-1.8.8-r23009/bin/ruby -ve “‘0’+‘+0.1’\*5133”  
ruby 1.8.8dev (2009-03-19) [i386-darwin9.6.0]  
-e:1: warning: useless use of + in void context