Sha256: 0c8df69b7bc21a3dea651a141772422f328f67026b4fe96ecf1877db0a7ebab7
Contents?: true
Size: 1.2 KB
Versions: 24
Compression:
Stored size: 1.2 KB
Contents
// Copyright (c) 2018-2020 Dr. Colin Hirsch and Daniel Frey
// Please see LICENSE for license or visit https://github.com/taocpp/json/
#ifndef TAO_JSON_MESSAGE_EXTENSION_HPP
#define TAO_JSON_MESSAGE_EXTENSION_HPP
#include <ostream>
#include <string>
namespace tao::json
{
template< typename T, typename = void >
struct message_extension
{
const T& m_v;
explicit message_extension( const T& v ) noexcept
: m_v( v )
{}
friend std::ostream& operator<<( std::ostream& os, const message_extension& /*unused*/ ) noexcept
{
return os;
}
};
template< typename T >
struct message_extension< T, decltype( std::declval< const T& >().public_base().append_message_extension( std::declval< std::ostream& >() ), void() ) >
{
const T& m_v;
explicit message_extension( const T& v ) noexcept
: m_v( v )
{}
friend std::ostream& operator<<( std::ostream& os, const message_extension& v )
{
os << ' ';
v.m_v.public_base().append_message_extension( os );
return os;
}
};
template< typename T >
message_extension( const T& )->message_extension< T >;
} // namespace tao::json
#endif
Version data entries
24 entries across 24 versions & 1 rubygems