# $00..0 dumps core

**URL:** <https://www.ruby-forum.com/t/00-0-dumps-core/108252>\
**Category:** Development\
**Created:** [July 1, 2007, 1:42am UTC](https://www.ruby-forum.com/t/00-0-dumps-core/108252 "2007-07-01T01:42:28Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**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 1, 2007, 1:42am UTC](https://www.ruby-forum.com/t/00-0-dumps-core/108252/1 "2007-07-01T01:42:28Z")

</div>

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

1.8.6 e$B!"e(B1.9 e$B6&$K0J2\<$N$h$&$K$9$k$HMn$A$^$9!#e(B

$ ./ruby -e ‘$00…0’  
-e:1: identifier $00 is not valid  
-e:1: [BUG] Segmentation fault  
ruby 1.8.6 (2007-06-30) [i686-linux]

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

e$B$^$?!"e(B0…$00=1 e$B$G$bMn$A$^$9!#e(B

e$B$3$Ne(B 2 e$B$D$@$1$K4X$7$F$OKvHx$N%Q%C%A$GMn$A$J$/$J$j$^$7$?$,!“e(B  
gettable e$B$de(B assignable  
e$B$r;HMQ$7$F$$$k2U=j$OB\>$K$b7k9=$”$k$N$Ge(B  
e$B$^$@2?$+$7$J$$$H$$$1$J$$$+$b$7$l$^$;$s!#e(B  
e$BNc$($P!"e(B1.9 e$B$Ge(B $00+=1  
e$B$r\<B9T$9$k$H2x$7$$$3$H$r8@$o$l$^$9!#e(B  
(e$B$A$c$s$HDI$C$F$J$$$N$GJL$NLdBj$+$b$7$l$^$;$s$,e(B)

$ ./ruby -e ‘$00+=1’  
identifier $00 is not valid  
identifier (null) is not valid

# Index: parse.y

— parse.y (revision 12674)  
+++ parse.y (working copy)  
@@ -841,7 +841,7 @@

lhs : variable  
{

- 

```
 $$ = assignable($1, 0);

```

- 

```
 if(!($$ = assignable($1, 0))) $$ = NEW_NIL();
   }

```

| primary\_value ‘[’ aref\_args ‘]’  
{  
@@ -2200,7 +2200,7 @@

var\_ref : variable  
{

- 

```
 $$ = gettable($1);

```

- 

```
 if(!($$ = gettable($1))) $$ = NEW_NIL();
   }

```

;