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https://issues.apache.org/jira/browse/STDCXX-316?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martin Sebor resolved STDCXX-316.
---------------------------------
Resolution: Fixed
Fixed by the referenced patch. Test suite still needs to be updated.
> std::valarray::cshift uses uninitialized storage
> ------------------------------------------------
>
> Key: STDCXX-316
> URL: https://issues.apache.org/jira/browse/STDCXX-316
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 26. Numerics
> Affects Versions: 4.1.3, 4.1.2
> Environment: all
> Reporter: Martin Sebor
> Assigned To: Martin Sebor
> Fix For: 4.2
>
>
> The program below is designed to detect memory corruption (such as the use of
> uninitialized storage) in valarray. When compiled with the latest trunk it
> aborts at runtime.
> $ cat t.cpp && nice gmake t && ./t
> #include <cassert>
> #include <valarray>
> struct S {
> const S* const self;
> S (): self (this) { }
> S (const S &s): self (this) { assert (&s == s.self); }
> ~S () { assert (this == self); }
> void operator= (const S &s) { assert (this == self && &s == s.self); }
> };
> int main ()
> {
> const std::valarray<S> a (2);
> a.cshift (1);
> }
> 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: this == self && &s == s.self, file t.cpp, line 10
> ABORT instruction (core dumped)
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