# \[0\].product(0) dumps core

**URL:** <https://www.ruby-forum.com/t/0-product-0-dumps-core/119372>\
**Category:** Development\
**Created:** [November 6, 2007, 2:26pm UTC](https://www.ruby-forum.com/t/0-product-0-dumps-core/119372 "2007-11-06T14:26:18Z")\
**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:** [November 6, 2007, 2:26pm UTC](https://www.ruby-forum.com/t/0-product-0-dumps-core/119372/1 "2007-11-06T14:26:18Z")

</div>

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1.9 e$B$Ge(B Array#product e$B$N0z?t$Ke(B Array  
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## $ ./ruby -e ‘[0].product(0)’ -e:1: – control frame ---------- c:0004 p:---- s:0009 b:0009 l:000008 d:000008 CFUNC :product c:0003 p:0010 s:0005 b:0005 l:000004 d:000004 TOP -e:1 c:0002 p:---- s:0003 b:0003 l:000002 d:000002 FINISH :inherited c:0001 p:---- s:0001 b:-001 l:000000 d:000000 ------

## DBG\> : “-e:1:in `’” – backtrace of native function call (Use addr2line) – 0x80e6235 0x8103b13 0x8103bdb 0x80b8cc0 0xffffe420 0x80dcbee 0x80de916 0x80e1566 0x80e4b04 0x80e4e3b 0x8059ca9 0x805d5b0 0x80579b0 0xb7dd6ea8 0x80578d1

[BUG] Segmentation fault  
ruby 1.9.0 (2007-11-06) [i686-linux]

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# Index: array.c

— array.c (revision 13827)  
+++ array.c (working copy)  
@@ -3169,7 +3169,7 @@

```
 /* initialize the arrays of arrays */
 arrays[0] = ary;

```

- for (i = 1; i \< n; i++) arrays[i] = argv[i-1];

- for (i = 1; i \< n; i++) arrays[i] = to\_ary(argv[i-1]);