# !\_=() and 0..() dump core

**URL:** <https://www.ruby-forum.com/t/and-0-dump-core/109835>\
**Category:** Development\
**Created:** [July 19, 2007, 2:57pm UTC](https://www.ruby-forum.com/t/and-0-dump-core/109835 "2007-07-19T14:57:36Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Yusuke\_ENDOH](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/c89c15/32.png) [@Yusuke\_ENDOH](https://www.ruby-forum.com/u/Yusuke_ENDOH)\
**Post date:** [July 19, 2007, 2:57pm UTC](https://www.ruby-forum.com/t/and-0-dump-core/109835/1 "2007-07-19T14:57:36Z")

</div>

e$B1sF#$H?=$7$^$9!#e(B

1.9 e$B$G0J2\<$N$h$&$K$9$k$HMn$A$^$9!#e(B

## $ ./ruby -ve ‘!\_=()’ ruby 1.9.0 (2007-07-19 patchlevel 0) [i686-linux] – control frame ---------- c:0001 p:---- s:0001 b:-001 l:000000 d:000000 ------

## – backtrace of native function call (Use addr2line) – 0x80dadd5 0x80f36d3 0x80f379b 0x80b26e0 0xffffe420 0x8087931 0x80912cf 0x80915df 0x80b189b 0x80b1c0b 0x805c584 0x8056c7a 0xb7d51ea8 0x8056bb1

[BUG] Segmentation fault  
ruby 1.9.0 (2007-07-19) [i686-linux]

e$B%"%!\<%H$7$^$7$?e(B (core dumped)

e$B4XO"$9$k$+$o$+$j$^$;$s$,!"0J2\<$N$h$&$K$7$F$bMn$A$^$9!#e(B

## $ ./ruby -ve ‘0…()’ ruby 1.9.0 (2007-07-19 patchlevel 0) [i686-linux] – control frame ---------- c:0001 p:---- s:0001 b:-001 l:000000 d:000000 ------

## – backtrace of native function call (Use addr2line) – 0x80dadd5 0x80f36d3 0x80f379b 0x80b26e0 0xffffe420 0x80912cf 0x80915df 0x80b189b 0x80b1c0b 0x805c584 0x8056c7a 0xb7d66ea8 0x8056bb1

[BUG] Segmentation fault  
ruby 1.9.0 (2007-07-19) [i686-linux]

e$B%"%!\<%H$7$^$7$?e(B (core dumped)

e$B$5$i$K!"e(B0;() e$B$NJV$9CM$,e(B 1.8 e$B$He(B 1.9  
e$B$G0[$J$j$^$9!#e(B  
e$B0U?^$5$l$?;EMMJQ99$G$7$g$&$+!#e(B

$ ./ruby -ve ‘p((0;()))’  
ruby 1.8.6 (2007-07-17 patchlevel 5000) [i686-linux]  
-e:1: warning: unused literal ignored  
nil  
$ ./ruby -ve ‘p((0;()))’  
ruby 1.9.0 (2007-07-17 patchlevel 0) [i686-linux]  
0