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Posted to dev@stdcxx.apache.org by "Martin Sebor (JIRA)" <ji...@apache.org> on 2007/09/24 19:45:50 UTC

[jira] Commented: (STDCXX-448) SIGSEGV in std::valarray::operator[](gslice)

    [ https://issues.apache.org/jira/browse/STDCXX-448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12529926 ] 

Martin Sebor commented on STDCXX-448:
-------------------------------------

The behavior of the regression test (26.valarray.sub.stdcxx-448.cpp) with the latest trunk:

$ ./26.valarray.sub.stdcxx-448
/amd/devco/sebor/stdcxx-trunk/include/rw/_array.h:79: const _TypeT& __rw::__rw_array<_TypeT>::operator[](long unsigned int) const [with _TypeT = double]: Assertion '__inx < size ()' failed.
/build/sebor/stdcxx-trunk-gcc-3.4.6_3-15D/lib/libstd15D.so[0x2a955a8d6b]
/build/sebor/stdcxx-trunk-gcc-3.4.6_3-15D/lib/libstd15D.so(_ZN4__rw16__rw_assert_failEPKcS1_iS1_+0x86)[0x2a955a8e0e]
./26.valarray.sub.stdcxx-448[0x4010d8]
./26.valarray.sub.stdcxx-448(__gxx_personality_v0+0x46b)[0x400dfb]
./26.valarray.sub.stdcxx-448(__gxx_personality_v0+0x13f)[0x400acf]
/lib64/tls/libc.so.6(__libc_start_main+0xdb)[0x3a90a1c3fb]
./26.valarray.sub.stdcxx-448(__gxx_personality_v0+0x7a)[0x400a0a]
Aborted


> SIGSEGV in std::valarray::operator[](gslice)
> --------------------------------------------
>
>                 Key: STDCXX-448
>                 URL: https://issues.apache.org/jira/browse/STDCXX-448
>             Project: C++ Standard Library
>          Issue Type: Bug
>          Components: 26. Numerics
>    Affects Versions: 4.1.2, 4.1.3, 4.1.4
>         Environment: all
>            Reporter: Martin Sebor
>            Assignee: Martin Sebor
>             Fix For: 4.2
>
>
> ****Created By: micucci @ Dec 13, 1999 09:33:05 AM****
> ######## WORK NOTES COPIED FROM INCIDENT 879763 ########
> **** Entered By: leroy @ Wednesday, November 10, 1999 11:59:53 AM ****
> [see Rogue Wave issue 4437: http://insight.roguewave.com/onyxinsight/qa/qa4437.htm]
> ****Modified By: sebor @ Jan 24, 2000 03:40:38 PM****
> This doesn't compile with g++ 2.95.2:
> test.cpp:9: `operator *' not defined
> but does core dump with edg 2.42
> ****Modified By: pedretti @ Feb 07, 2000 05:37:33 PM****
> This is actually a problem with the valarray constructor that takes a gslice as an argument, which is called by the valarray::operator[] ( gslice );. in fact, the following code would cause the core dump:
> ------
> #include <valarray>
> int main()
> {  
>    std::valarray<double> dval;
>    dval[std::gslice()];
> }
> -----

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