# Ary\[\]+=1 dumps core

**URL:** <https://www.ruby-forum.com/t/ary-1-dumps-core/108335>\
**Category:** Development\
**Created:** [July 2, 2007, 12:54pm UTC](https://www.ruby-forum.com/t/ary-1-dumps-core/108335 "2007-07-02T12:54:28Z")\
**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 2, 2007, 12:54pm UTC](https://www.ruby-forum.com/t/ary-1-dumps-core/108335/1 "2007-07-02T12:54:28Z")

</div>

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

## $ ./ruby -e ‘ary[]+=1’ – control frame ---------- c:0001 p:---- s:0001 b:-001 l:000000 d:000000 ------

## – backtrace of native function call (Use addr2line) – 0x80dac65 0x80f3ec0 0x810a349 0x8105841 0x810ad37 0x80d01a2 0x80d0276 0x80dbac2 0x80dbb26 0x8059052 0x8059076 0x805d601 0x8056d2f 0xb7dacea8 0x8056c61

[BUG] compile\_array: This node is not NODE\_ARRAY, but NODE\_ZARRAY  
ruby 1.9.0 (2007-07-02) [i686-linux]

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

e$B$H$j$"$($:0J2\<$N%Q%C%A$GMn$A$J$/$J$j$^$9!#e(B  
e$B$A$c$s$H9M$($F$$$J$$1~5^=hCV$J$N$G$^$@LdBj$,$"$k$+$b$7$l$^$;$s!#e(B  
e$B$"$H!"JQ99E@$rL@\<($9$k$?$a$K4:$($F%$%s%G%s%H$rJQ$($F$$$^$;$s!#e(B

# Index: compile.c

— compile.c (revision 12678)  
+++ compile.c (working copy)  
@@ -1831,6 +1831,7 @@  
int len = node-\>nd\_alen, line = nd\_line(node), i=0;  
DECL\_ANCHOR(anchor);

+if(nd\_type(node) != NODE\_ZARRAY) {  
while (node) {  
if (nd\_type(node) != NODE\_ARRAY) {  
rb\_bug(“compile\_array: This node is not NODE\_ARRAY, but %s”,  
@@ -1844,6 +1845,7 @@  
COMPILE(anchor, “array element”, node-\>nd\_head);  
node = node-\>nd\_next;  
}  
+}

```
 if (len != i) {

```

if (0) rb\_bug(“node error: compile\_array (%d: %d-%d)”,

---

<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 3, 2007, 5:22pm UTC](https://www.ruby-forum.com/t/ary-1-dumps-core/108335/2 "2007-07-03T17:22:49Z")

</div>

e$B!!$5$5$@$G$9!#e(B

Yusuke ENDOH wrote:

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

> $ ./ruby -e ‘ary[]+=1’  
> e$B$H$j$"$($:0J2\<$N%Q%C%A$GMn$A$J$/$J$j$^$9!#e(B  
> e$B$A$c$s$H9M$($F$$$J$$1~5^=hCV$J$N$G$^$@LdBj$,$"$k$+$b$7$l$^$;$s!#e(B  
> e$B$"$H!"JQ99E@$rL@\<($9$k$?$a$K4:$($F%$%s%G%s%H$rJQ$($F$$$^$;$s!#e(B

e$B!!$"$j$,$H$&$4$6$$$^$7$?!#$?$V$s!"LdBj$J$$$h$&$J5$$,$9$k$N$G\<he(B  
e$B$j9~$\_$^$9!#e(B