# \[()\] dumps core

**URL:** <https://www.ruby-forum.com/t/dumps-core/109734>\
**Category:** Development\
**Created:** [July 18, 2007, 2:14pm UTC](https://www.ruby-forum.com/t/dumps-core/109734 "2007-07-18T14:14:44Z")\
**Posts on this page:** 2\
**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 18, 2007, 2:14pm UTC](https://www.ruby-forum.com/t/dumps-core/109734/1 "2007-07-18T14:14:44Z")

</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 (2007-07-18 patchlevel 0) [i686-linux] – control frame ---------- c:0001 p:---- s:0001 b:-001 l:000000 d:000000 ------

## – backtrace of native function call (Use addr2line) – 0x80dad75 0x80f3503 0x80f35cb 0x80b2680 0xffffe420 0x8104765 0x810a43e 0x80cf2f2 0x80cf3c6 0x8059054 0x805d5dd 0x8056c32 0xb7df3ea8 0x8056b61

[BUG] Segmentation fault  
ruby 1.9.0 (2007-07-18) [i686-linux]

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

---

<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 18, 2007, 5:47pm UTC](https://www.ruby-forum.com/t/dumps-core/109734/2 "2007-07-18T17:47:24Z")

</div>

e$B$J$+$@$G$9!#e(B

At Wed, 18 Jul 2007 21:13:36 +0900,  
Yusuke ENDOH wrote in [ruby-dev:31252]:

> 1.9 e$B$G0J2\<$N$h$&$K$9$k$HMn$A$^$9!#e(B
> 
> $ ./ruby -ve ‘[()]’

arg\_valuee$B$@$1$G$$$$$+$b$7$l$^$;$s$,!#e(B

# e$BM\>7W$J7Y9p$,=P$k$+$Je(B?

# Index: parse.y

— parse.y (revision 12813)  
+++ parse.y (working copy)  
@@ -1157,4 +1157,5 @@ expr\_value : expr  
value\_expr($1);  
$$ = $1;

- 

```
 if (!$$) $$ = NEW_NIL();
   /*%
 $$ = $1;

```

@@ -2205,4 +2206,5 @@ arg\_value : arg  
value\_expr($1);  
$$ = $1;

- 

```
 if (!$$) $$ = NEW_NIL();
   /*%
 $$ = $1;

```

@@ -2929,4 +2931,5 @@ primary\_value : primary  
value\_expr($1);  
$$ = $1;

- 

```
 if (!$$) $$ = NEW_NIL();
   /*%
 $$ = $1;
```