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Hash: Remove C++11 forward declarations.

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It seems that on Visual C++ Dinkumware declares shared_ptr in std, but for
Intel C++ it imports it from std::tr1. I was thinking of doing a macro check
for this, but since we're close to release, just change it to always include
the headers and never forward declare the C++11 classes, which is much safer.

I might restore the forward declarations in the future, although I'm tempted
not to. I'm not sure the improvement in compile time is worth the hassle.


[SVN r80038]
This commit is contained in:
Daniel James
2012-08-14 20:06:07 +00:00
parent 0757aea7cb
commit 9119b2646b
1 changed files with 3 additions and 29 deletions
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32
include/boost/functional/hash/detail/container_fwd_0x.hpp
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@ -11,45 +11,19 @@
// std::array
#if !defined(BOOST_NO_CXX11_HDR_ARRAY)
// Don't forward declare std::array for Dinkumware, as it seems to be
// just 'using std::tr1::array'.
# if (defined(BOOST_DETAIL_NO_CONTAINER_FWD) && \
!defined(BOOST_DETAIL_TEST_FORCE_CONTAINER_FWD)) || \
(defined(_YVALS) && !defined(__IBMCPP__)) || defined(_CPPLIB_VER)
# include <array>
# else
namespace std {
template <class, std::size_t> class array;
}
# endif
# include <array>
#endif
// std::tuple
#if !defined(BOOST_NO_CXX11_HDR_TUPLE)
# if (defined(BOOST_DETAIL_NO_CONTAINER_FWD) && \
!defined(BOOST_DETAIL_TEST_FORCE_CONTAINER_FWD)) || \
defined(BOOST_NO_VARIADIC_TEMPLATES)
# include <tuple>
# else
namespace std {
template <typename...> class tuple;
}
# endif
# include <tuple>
#endif
// std::shared_ptr/std::unique_ptr
#if !defined(BOOST_NO_CXX11_HDR_MEMORY)
# if (defined(BOOST_DETAIL_NO_CONTAINER_FWD) && \
!defined(BOOST_DETAIL_TEST_FORCE_CONTAINER_FWD))
# include <memory>
# else
namespace std {
template <class> class shared_ptr;
template <class, class> class unique_ptr;
}
# endif
# include <memory>
#endif
#endif