diff options
Diffstat (limited to 'src/third_party/boost-1.60.0/boost/move/utility.hpp')
-rw-r--r-- | src/third_party/boost-1.60.0/boost/move/utility.hpp | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/src/third_party/boost-1.60.0/boost/move/utility.hpp b/src/third_party/boost-1.60.0/boost/move/utility.hpp new file mode 100644 index 00000000000..8f9c20b65f3 --- /dev/null +++ b/src/third_party/boost-1.60.0/boost/move/utility.hpp @@ -0,0 +1,149 @@ +////////////////////////////////////////////////////////////////////////////// +// +// (C) Copyright Ion Gaztanaga 2012-2012. +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt) +// +// See http://www.boost.org/libs/move for documentation. +// +////////////////////////////////////////////////////////////////////////////// + +//! \file +//! This header includes core utilities from <tt><boost/move/utility_core.hpp></tt> and defines +//! some more advanced utilities such as: + +#ifndef BOOST_MOVE_MOVE_UTILITY_HPP +#define BOOST_MOVE_MOVE_UTILITY_HPP + +#ifndef BOOST_CONFIG_HPP +# include <boost/config.hpp> +#endif +# +#if defined(BOOST_HAS_PRAGMA_ONCE) +# pragma once +#endif + +#include <boost/move/detail/config_begin.hpp> +#include <boost/move/utility_core.hpp> +#include <boost/move/traits.hpp> + +#if defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_MOVE_DOXYGEN_INVOKED) + + namespace boost { + + ////////////////////////////////////////////////////////////////////////////// + // + // move_if_noexcept() + // + ////////////////////////////////////////////////////////////////////////////// + + template <class T> + inline typename ::boost::move_detail::enable_if_c + < enable_move_utility_emulation<T>::value && !has_move_emulation_enabled<T>::value + , typename ::boost::move_detail::add_const<T>::type & + >::type + move_if_noexcept(T& x) BOOST_NOEXCEPT + { + return x; + } + + template <class T> + inline typename ::boost::move_detail::enable_if_c + < enable_move_utility_emulation<T>::value && has_move_emulation_enabled<T>::value + && ::boost::move_detail::is_nothrow_move_constructible_or_uncopyable<T>::value, rv<T>&>::type + move_if_noexcept(T& x) BOOST_NOEXCEPT + { + return *static_cast<rv<T>* >(::boost::move_detail::addressof(x)); + } + + template <class T> + inline typename ::boost::move_detail::enable_if_c + < enable_move_utility_emulation<T>::value && has_move_emulation_enabled<T>::value + && ::boost::move_detail::is_nothrow_move_constructible_or_uncopyable<T>::value + , rv<T>& + >::type + move_if_noexcept(rv<T>& x) BOOST_NOEXCEPT + { + return x; + } + + template <class T> + inline typename ::boost::move_detail::enable_if_c + < enable_move_utility_emulation<T>::value && has_move_emulation_enabled<T>::value + && !::boost::move_detail::is_nothrow_move_constructible_or_uncopyable<T>::value + , typename ::boost::move_detail::add_const<T>::type & + >::type + move_if_noexcept(T& x) BOOST_NOEXCEPT + { + return x; + } + + template <class T> + inline typename ::boost::move_detail::enable_if_c + < enable_move_utility_emulation<T>::value && has_move_emulation_enabled<T>::value + && !::boost::move_detail::is_nothrow_move_constructible_or_uncopyable<T>::value + , typename ::boost::move_detail::add_const<T>::type & + >::type + move_if_noexcept(rv<T>& x) BOOST_NOEXCEPT + { + return x; + } + + } //namespace boost + +#else //#if defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_MOVE_DOXYGEN_INVOKED) + + #if defined(BOOST_MOVE_USE_STANDARD_LIBRARY_MOVE) + #include <utility> + + namespace boost{ + + using ::std::move_if_noexcept; + + } //namespace boost + + #else //!BOOST_MOVE_USE_STANDARD_LIBRARY_MOVE + + namespace boost { + + ////////////////////////////////////////////////////////////////////////////// + // + // move_if_noexcept() + // + ////////////////////////////////////////////////////////////////////////////// + #if defined(BOOST_MOVE_DOXYGEN_INVOKED) + //! This function provides a way to convert a reference into a rvalue reference + //! in compilers with rvalue references. For other compilers converts T & into + //! <i>::boost::rv<T> &</i> so that move emulation is activated. Reference + //! would be converted to rvalue reference only if input type is nothrow move + //! constructible or if it has no copy constructor. In all other cases const + //! reference would be returned + template <class T> + rvalue_reference_or_const_lvalue_reference move_if_noexcept(input_reference) noexcept; + + #else //BOOST_MOVE_DOXYGEN_INVOKED + + template <class T> + typename ::boost::move_detail::enable_if_c + < ::boost::move_detail::is_nothrow_move_constructible_or_uncopyable<T>::value, T&&>::type + move_if_noexcept(T& x) BOOST_NOEXCEPT + { return ::boost::move(x); } + + template <class T> + typename ::boost::move_detail::enable_if_c + < !::boost::move_detail::is_nothrow_move_constructible_or_uncopyable<T>::value, const T&>::type + move_if_noexcept(T& x) BOOST_NOEXCEPT + { return x; } + + #endif //BOOST_MOVE_DOXYGEN_INVOKED + + } //namespace boost { + + #endif //#if defined(BOOST_MOVE_USE_STANDARD_LIBRARY_MOVE) + +#endif //BOOST_NO_CXX11_RVALUE_REFERENCES + +#include <boost/move/detail/config_end.hpp> + +#endif //#ifndef BOOST_MOVE_MOVE_UTILITY_HPP |