# \[Ruby 1.9 - Bug #409\] (Open) Can't modify frozen ... $B$N7?(B

**URL:** <https://www.ruby-forum.com/t/ruby-1-9-bug-409-open-cant-modify-frozen-b-n7-b/145248>\
**Category:** Development\
**Created:** [August 7, 2008, 5:38am UTC](https://www.ruby-forum.com/t/ruby-1-9-bug-409-open-cant-modify-frozen-b-n7-b/145248 "2008-08-07T05:38:22Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Shyouhei\_U](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/94ad74/32.png) [@Shyouhei\_U](https://www.ruby-forum.com/u/Shyouhei_U)\
**Post date:** [August 7, 2008, 5:38am UTC](https://www.ruby-forum.com/t/ruby-1-9-bug-409-open-cant-modify-frozen-b-n7-b/145248/1 "2008-08-07T05:38:22Z")

</div>

e$B%A%1%C%He(B #409 e$B$,Js9p$5$l$^$7$?!#e(B (by Shyouhei U.)

* * *

Bug #409: Can’t modify frozen … e$B$N7?e(B  
[http://redmine.ruby-lang.org/issues/show/409](http://redmine.ruby-lang.org/issues/show/409)

e$B5/I\<\<Te(B: Shyouhei U.  
e$B%9%F!\<%?%9e(B: Open  
e$BM%@hEYe(B: Normal  
e$BC4Ev\<Te(B: Yukihiro M.  
e$B%+%F%4%je(B: core  
Target version:

e$B$A$c$s$He(Brescuee$B$7$F$?$O$:$Ne(BCan’t modify frozen  
e$B$J$s$H$+Nc30$,JaB\*$Ge(B  
e$B$-$J$/$J$C$F$F5$$E$$$?$N$G$9$,!"e(B1.9e$B$G$Oe(BRuntimeErrore$B$K$J$C$F$$$^$9!#e(B

% trunk/bin/ruby -e’[].freeze.clear’  
-e:1:in `clear': can't modify frozen array (RuntimeError) from -e:1:in `’

e$B$`$m$se(B1.8e$B$G$Oe(BTypeErrore$B$G$9!#e(B

ruby\_1\_8/bin/ruby -e’[].freeze.clear’  
-e:1:in `clear’: can’t modify frozen array (TypeError)  
from -e:1

e$B$J$K$+M}M3$,$"$k$N$G$7$g$&$+e(B?