40 lines
1.0 KiB
C++
Executable File
40 lines
1.0 KiB
C++
Executable File
#ifndef BOOST_TYPE_TRAITS_IS_NONCOPYABLE_HPP_INCLUDED
|
|
#define BOOST_TYPE_TRAITS_IS_NONCOPYABLE_HPP_INCLUDED
|
|
|
|
//
|
|
// Copyright 2018 Peter Dimov
|
|
//
|
|
// 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
|
|
//
|
|
// is_noncopyable<T> returns whether T is derived from boost::noncopyable
|
|
//
|
|
|
|
#include <boost/type_traits/is_base_and_derived.hpp>
|
|
|
|
namespace boost
|
|
{
|
|
|
|
#ifndef BOOST_NONCOPYABLE_BASE_TOKEN_DEFINED
|
|
#define BOOST_NONCOPYABLE_BASE_TOKEN_DEFINED
|
|
|
|
// boost::noncopyable derives from noncopyable_::base_token to enable us
|
|
// to recognize it. The definition is macro-guarded so that we can replicate
|
|
// it here without including boost/core/noncopyable.hpp, which is in Core.
|
|
|
|
namespace noncopyable_
|
|
{
|
|
struct base_token {};
|
|
}
|
|
|
|
#endif // #ifndef BOOST_NONCOPYABLE_BASE_TOKEN_DEFINED
|
|
|
|
template<class T> struct is_noncopyable: is_base_and_derived<noncopyable_::base_token, T>
|
|
{
|
|
};
|
|
|
|
} // namespace boost
|
|
|
|
#endif // #ifndef BOOST_TYPE_TRAITS_IS_NONCOPYABLE_HPP_INCLUDED
|