# \[Bug:1.9\] $? is not thread scope

**URL:** <https://www.ruby-forum.com/t/bug-1-9-is-not-thread-scope/142624>\
**Category:** Development\
**Created:** [July 9, 2008, 7:52pm UTC](https://www.ruby-forum.com/t/bug-1-9-is-not-thread-scope/142624 "2008-07-09T19:52:00Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Tanaka\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tanaka\_A](https://www.ruby-forum.com/u/Tanaka_A)\
**Post date:** [July 9, 2008, 7:52pm UTC](https://www.ruby-forum.com/t/bug-1-9-is-not-thread-scope/142624/1 "2008-07-09T19:52:00Z")

</div>

1.9 e$B$G$Oe(B $? e$B$,%9%l%C%I%9%3!\<%W$G$J$/$J$C$F$$$k$h$&$G$9!#e(B

e$B0J2\<$N$h$&$K!"B\>$N%9%l%C%I$GF0$+$7$?%3%^%s%I$N7k2L$,e(B $? e$B$KI=e(B  
e$B$l$^$9!#e(B

% ./ruby -ve ’  
t = Thread.new { system(“false”) }  
p $?  
t.join  
p $?  
’  
ruby 1.9.0 (2008-07-09 revision 17977) [i686-linux]  
false  
#\<Process::Status: pid 11679 exit 1\>

1.8 e$B$G$Oe(B $? e$B$OJQ2=$7$^$;$s!#e(B

% ruby-1.8 -ve ’  
t = Thread.new { system(“false”) }  
p $?  
t.join  
p $?  
’  
ruby 1.8.7 (2008-07-10 revision 17572) [i686-linux]  
nil  
nil

e$B$"$H!"$D$$$G$K$$$&$H!"e(B1.9 e$B$G$Oe(B $? e$B$N=i4|CM$,e(B 1.8  
e$B$H0[$J$je(B  
false e$B$G$9!#e(B

---

<div class="post-metadata">

**Author:** ![Tanaka\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tanaka\_A](https://www.ruby-forum.com/u/Tanaka_A)\
**Post date:** [July 9, 2008, 8:07pm UTC](https://www.ruby-forum.com/t/bug-1-9-is-not-thread-scope/142624/2 "2008-07-09T20:07:53Z")

</div>

e$B%A%1%C%He(B #251 e$B$,99?7$5$l$^$7$?!#e(B (by Anonymous)

e$B%9%F!\<%?%9e(B Opene$B$+$ie(BClosede$B$KJQ99e(B  
e$B?JD=e(B % 0e$B$+$ie(B100e$B$KJQ99e(B

## Applied in changeset r17981.

[http://redmine.ruby-lang.org/issues/show/251](http://redmine.ruby-lang.org/issues/show/251)