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https://issues.apache.org/jira/browse/STDCXX-666?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Farid Zaripov reassigned STDCXX-666:
------------------------------------
Assignee: Farid Zaripov
> [MSVC 8-x64] 21.string.cons.cpp test fails in optimized builds due to bad
> codegeneration by the compiler
> --------------------------------------------------------------------------------------------------------
>
> Key: STDCXX-666
> URL: https://issues.apache.org/jira/browse/STDCXX-666
> Project: C++ Standard Library
> Issue Type: Bug
> Components: Tests
> Affects Versions: 4.2.0
> Environment: MSVC 8.0-x64, builds 8{d|s}, 12{d|s}
> Reporter: Farid Zaripov
> Assignee: Farid Zaripov
> Fix For: 4.2.1
>
>
> The 21.string.cons.cpp test fails with 16 assertions on 64-bit MSVC in
> optimized builds.
> The reason is the bad codegeneration in __rw_new_capacity() inlined in
> std::basic_string ctors. Because of this bug the __rw_new_capacity(0, const
> std::basic_string<> *) returns value greater that size_max() and ctor throws
> exception.
> The temporary workaround might be definition of the __rw_new_capacity() as
> __declspec (noinline).
> ------------------------------
> Index: include/string
> ===================================================================
> --- include/string (revision 593511)
> +++ include/string (working copy)
> @@ -1528,8 +1528,13 @@
> // more specialized version for basic_string<>; may be further specialized
> // in user code for example on a user-defined allocator
>
> +#if !defined (_WIN64) || !defined (_MSC_VER) || defined
> (__INTEL_COMPILER)
> template <class _CharT, class _Traits, class _Allocator> inline
> _RWSTD_STRING_SIZE_TYPE
> +#else // _WIN64 && _MSC_VER && !__INTEL_COMPILER
> +template <class _CharT, class _Traits, class _Allocator> __declspec
> +(noinline) _RWSTD_STRING_SIZE_TYPE
> +#endif // !_WIN64 || !_MSC_VER || __INTEL_COMPILER
> __rw_new_capacity (_RWSTD_STRING_SIZE_TYPE __size,
> const _STD::basic_string<_CharT, _Traits,
> _Allocator>*)
> {
> ------------------------------
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