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Don't use full construction on Sun C++ w. libstdc++

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There's an exception safety issue. Which is a pity as other than that it
seems fine. I'd assumed that support would be pretty good on all C++11
compilers, so I made it an 'all or nothing' feature, partly because
there are issues with pre-C++11 allocators, but this suggests partial
support might be desirable. Not sure I'll be able to (or want to) put
the time in though.
This commit is contained in:
Daniel James
2017-05-12 11:10:34 +01:00
parent a897843f6c
commit 12ee29579d
1 changed files with 7 additions and 2 deletions
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9
include/boost/unordered/detail/implementation.hpp
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@ -75,7 +75,7 @@
// 2 = boost::container::allocator_traits
#if !defined(BOOST_UNORDERED_USE_ALLOCATOR_TRAITS)
#if !defined(BOOST_NO_CXX11_ALLOCATOR) && !BOOST_COMP_SUNPRO
#if !defined(BOOST_NO_CXX11_ALLOCATOR)
#define BOOST_UNORDERED_USE_ALLOCATOR_TRAITS 1
#elif defined(BOOST_MSVC)
#if BOOST_MSVC < 1400
@ -98,7 +98,12 @@
#if BOOST_UNORDERED_HAVE_PIECEWISE_CONSTRUCT && \
!defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
#if BOOST_UNORDERED_USE_ALLOCATOR_TRAITS == 0 && !defined(BOOST_NO_SFINAE_EXPR)
#if BOOST_COMP_SUNPRO && BOOST_LIB_STD_GNU
// Sun C++ std::pair piecewise construction doesn't seem to be exception safe.
// (At least for Sun C++ 12.5 using libstdc++).
#define BOOST_UNORDERED_CXX11_CONSTRUCTION 0
#elif BOOST_UNORDERED_USE_ALLOCATOR_TRAITS == 0 && \
!defined(BOOST_NO_SFINAE_EXPR)
#define BOOST_UNORDERED_CXX11_CONSTRUCTION 1
#elif BOOST_UNORDERED_USE_ALLOCATOR_TRAITS == 1
#define BOOST_UNORDERED_CXX11_CONSTRUCTION 1