diff options
Diffstat (limited to '3rdParty/Boost/src/boost/utility/base_from_member.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/utility/base_from_member.hpp | 86 |
1 files changed, 85 insertions, 1 deletions
diff --git a/3rdParty/Boost/src/boost/utility/base_from_member.hpp b/3rdParty/Boost/src/boost/utility/base_from_member.hpp index 04aabb5..fc0e13c 100644 --- a/3rdParty/Boost/src/boost/utility/base_from_member.hpp +++ b/3rdParty/Boost/src/boost/utility/base_from_member.hpp @@ -1,6 +1,6 @@ // boost utility/base_from_member.hpp header file --------------------------// -// Copyright 2001, 2003, 2004 Daryle Walker. Use, modification, and +// Copyright 2001, 2003, 2004, 2012 Daryle Walker. Use, modification, and // distribution are subject to the Boost Software License, Version 1.0. (See // accompanying file LICENSE_1_0.txt or a copy at // <http://www.boost.org/LICENSE_1_0.txt>.) @@ -10,10 +10,15 @@ #ifndef BOOST_UTILITY_BASE_FROM_MEMBER_HPP #define BOOST_UTILITY_BASE_FROM_MEMBER_HPP +#include <boost/config.hpp> #include <boost/preprocessor/arithmetic/inc.hpp> #include <boost/preprocessor/repetition/enum_binary_params.hpp> #include <boost/preprocessor/repetition/enum_params.hpp> #include <boost/preprocessor/repetition/repeat_from_to.hpp> +#include <boost/type_traits/is_same.hpp> +#include <boost/type_traits/remove_cv.hpp> +#include <boost/type_traits/remove_reference.hpp> +#include <boost/utility/enable_if.hpp> // Base-from-member arity configuration macro ------------------------------// @@ -53,6 +58,59 @@ namespace boost { +namespace detail +{ + +// Type-unmarking class template -------------------------------------------// + +// Type-trait to get the raw type, i.e. the type without top-level reference nor +// cv-qualification, from a type expression. Mainly for function arguments, any +// reference part is stripped first. + +// Contributed by Daryle Walker + +template < typename T > +struct remove_cv_ref +{ + typedef typename ::boost::remove_cv<typename + ::boost::remove_reference<T>::type>::type type; + +}; // boost::detail::remove_cv_ref + +// Unmarked-type comparison class template ---------------------------------// + +// Type-trait to check if two type expressions have the same raw type. + +// Contributed by Daryle Walker, based on a work-around by Luc Danton + +template < typename T, typename U > +struct is_related + : public ::boost::is_same< + typename ::boost::detail::remove_cv_ref<T>::type, + typename ::boost::detail::remove_cv_ref<U>::type > +{}; + +// Enable-if-on-unidentical-unmarked-type class template -------------------// + +// Enable-if on the first two type expressions NOT having the same raw type. + +// Contributed by Daryle Walker, based on a work-around by Luc Danton + +#ifndef BOOST_NO_CXX11_VARIADIC_TEMPLATES +template<typename ...T> +struct enable_if_unrelated + : public ::boost::enable_if_c<true> +{}; + +template<typename T, typename U, typename ...U2> +struct enable_if_unrelated<T, U, U2...> + : public ::boost::disable_if< ::boost::detail::is_related<T, U> > +{}; +#endif + +} // namespace boost::detail + + // Base-from-member class template -----------------------------------------// // Helper to initialize a base object so a derived class can use this @@ -68,12 +126,38 @@ class base_from_member protected: MemberType member; +#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \ + !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && \ + !defined(BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS) && \ + !(defined(__GNUC__) && (__GNUC__ == 4) && (__GNUC_MINOR__ < 4)) + template <typename ...T, typename EnableIf = typename + ::boost::detail::enable_if_unrelated<base_from_member, T...>::type> + explicit BOOST_CONSTEXPR base_from_member( T&& ...x ) + BOOST_NOEXCEPT_IF( BOOST_NOEXCEPT_EXPR(::new ((void*) 0) MemberType( + static_cast<T&&>(x)... )) ) // no std::is_nothrow_constructible... + : member( static_cast<T&&>(x)... ) // ...nor std::forward needed + {} +#else base_from_member() : member() {} BOOST_PP_REPEAT_FROM_TO( 1, BOOST_PP_INC(BOOST_BASE_FROM_MEMBER_MAX_ARITY), BOOST_PRIVATE_CTR_DEF, _ ) +#endif + +}; // boost::base_from_member + +template < typename MemberType, int UniqueID > +class base_from_member<MemberType&, UniqueID> +{ +protected: + MemberType& member; + + explicit BOOST_CONSTEXPR base_from_member( MemberType& x ) + BOOST_NOEXCEPT + : member( x ) + {} }; // boost::base_from_member |