MySources/boost_graph/boost/core/nvp.hpp

58 lines
1000 B
C++

/*
Copyright 2019 Glen Joseph Fernandes
(glenjofe@gmail.com)
Distributed under the Boost Software License, Version 1.0.
(http://www.boost.org/LICENSE_1_0.txt)
*/
#ifndef BOOST_CORE_NVP_HPP
#define BOOST_CORE_NVP_HPP
#include <boost/core/addressof.hpp>
#include <boost/config.hpp>
namespace boost {
namespace serialization {
template<class T>
class nvp {
public:
nvp(const char* n, T& v) BOOST_NOEXCEPT
: n_(n)
, v_(boost::addressof(v)) { }
const char* name() const BOOST_NOEXCEPT {
return n_;
}
T& value() const BOOST_NOEXCEPT {
return *v_;
}
const T& const_value() const BOOST_NOEXCEPT {
return *v_;
}
private:
const char* n_;
T* v_;
};
template<class T>
inline const nvp<T>
make_nvp(const char* n, T& v) BOOST_NOEXCEPT
{
return nvp<T>(n, v);
}
} /* serialization */
using serialization::nvp;
using serialization::make_nvp;
} /* boost */
#define BOOST_NVP(v) boost::make_nvp(BOOST_STRINGIZE(v), v)
#endif