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Diffstat (limited to '3rdParty/Boost/src/boost/proto/detail/is_noncopyable.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/proto/detail/is_noncopyable.hpp | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/proto/detail/is_noncopyable.hpp b/3rdParty/Boost/src/boost/proto/detail/is_noncopyable.hpp new file mode 100644 index 0000000..3e2da78 --- /dev/null +++ b/3rdParty/Boost/src/boost/proto/detail/is_noncopyable.hpp @@ -0,0 +1,65 @@ +/////////////////////////////////////////////////////////////////////////////// +/// \file is_noncopyable.hpp +/// Utility for detecting when types are non-copyable +// +// Copyright 2008 Eric Niebler. 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) + +#ifndef BOOST_PROTO_DETAIL_IS_NONCOPYABLE_HPP_EAN_19_07_2012 +#define BOOST_PROTO_DETAIL_IS_NONCOPYABLE_HPP_EAN_19_07_2012 + +#include <boost/noncopyable.hpp> +#include <boost/mpl/or.hpp> +#include <boost/mpl/bool.hpp> +#include <boost/type_traits/is_base_of.hpp> +#include <boost/type_traits/is_abstract.hpp> +#include <boost/type_traits/is_function.hpp> +#include <boost/proto/proto_fwd.hpp> + +namespace boost { namespace proto { namespace detail +{ + // All classes derived from std::ios_base have these public nested types, + // and are non-copyable. This is an imperfect test, but it's the best we + // we can do. + template<typename T> + yes_type check_is_iostream( + typename T::failure * + , typename T::Init * + , typename T::fmtflags * + , typename T::iostate * + , typename T::openmode * + , typename T::seekdir * + ); + + template<typename T> + no_type check_is_iostream(...); + + template<typename T> + struct is_iostream + { + static bool const value = sizeof(yes_type) == sizeof(check_is_iostream<T>(0,0,0,0,0,0)); + typedef mpl::bool_<value> type; + }; + + /// INTERNAL ONLY + // This should be a customization point. And it serves the same purpose + // as the is_noncopyable trait in Boost.Foreach. + template<typename T> + struct is_noncopyable + : mpl::or_< + is_function<T> + , is_abstract<T> + , is_iostream<T> + , is_base_of<noncopyable, T> + > + {}; + + template<typename T, std::size_t N> + struct is_noncopyable<T[N]> + : mpl::true_ + {}; + +}}} + +#endif |