/*
|
Copyright 2003 The Trustees of Indiana University
|
|
Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
|
Jeremiah Willcock (jewillco at osl.iu.edu)
|
Andrew Lumsdaine (lums at osl.iu.edu)
|
|
Copyright 2018 Glen Joseph Fernandes
|
(glenjofe@gmail.com)
|
|
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_TT_ENABLE_IF_HPP_INCLUDED
|
#define BOOST_TT_ENABLE_IF_HPP_INCLUDED
|
|
#include <boost/config.hpp>
|
|
namespace boost {
|
|
template<bool B, class T = void>
|
struct enable_if_ {
|
typedef T type;
|
};
|
|
template<class T>
|
struct enable_if_<false, T> { };
|
|
#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
|
template<bool B, class T = void>
|
using enable_if_t = typename enable_if_<B, T>::type;
|
#endif
|
|
} /* boost */
|
|
#endif
|
