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Posted to dev@stdcxx.apache.org by "Martin Sebor (JIRA)" <ji...@apache.org> on 2007/10/10 21:44:50 UTC
[jira] Commented: (STDCXX-309)
std::valarray::operator[](std::gslice) bad result
[ https://issues.apache.org/jira/browse/STDCXX-309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12533852 ]
Martin Sebor commented on STDCXX-309:
-------------------------------------
Regression test added here: http://svn.apache.org/viewvc?view=rev&revision=579027
> std::valarray::operator[](std::gslice) bad result
> -------------------------------------------------
>
> Key: STDCXX-309
> URL: https://issues.apache.org/jira/browse/STDCXX-309
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 26. Numerics
> Affects Versions: 4.1.2, 4.1.3
> Environment: all
> Reporter: Martin Sebor
> Assignee: Martin Sebor
> Fix For: 4.2
>
>
> The program below aborts at runtime with the latest trunk:
> $ cat t.cpp && nice gmake t && ./t
> #include <cassert>
> #include <cstddef>
> #include <valarray>
> int main ()
> {
> const int a[] = { 1, 2, 3, 4, 5, 6 };
> const std::valarray<int> v (a, sizeof a / sizeof *a);
> const std::size_t start = 5;
> std::valarray<std::size_t> length (1, 1);
> std::valarray<std::size_t> stride (1, 1);
> const std::gslice gsl (start, length, stride);
> const std::valarray<int> vsl = v [gsl];
> assert (a [start] == vsl [0]);
> }
> aCC -c -I/nfs/devco/sebor/dev/stdlib/include/ansi -I/usr/include -D_RWSTDDEBUG -mt -D_RWSTD_USE_CONFIG -I/nfs/devco/sebor/dev/stdlib/include -I/build/sebor/aCC-3.70-15S/include -I/nfs/devco/sebor/dev/stdlib/examples/include -Aa +nostl -g +d +DD64 +w +W392 +W655 +W684 +W818 +W819 +W849 t.cpp
> aCC t.o -o t -Aa +nostl -Wl,+s -Wl,+vnocompatwarnings -mt +DD64 -L/build/sebor/aCC-3.70-15S/lib -lstd15S -lm
> Assertion failed: a [start] == vsl [0], file t.cpp, line 19
> ABORT instruction (core dumped)
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