3
0
mirror of https://github.com/triqs/dft_tools synced 2024-12-25 13:53:40 +01:00
dft_tools/triqs/utility/c14.hpp
2014-03-16 00:11:56 +01:00

69 lines
2.6 KiB
C++

/*******************************************************************************
*
* TRIQS: a Toolbox for Research in Interacting Quantum Systems
*
* Copyright (C) 2011 by O. Parcollet
*
* TRIQS is free software: you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later
* version.
*
* TRIQS is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* TRIQS. If not, see <http://www.gnu.org/licenses/>.
*
******************************************************************************/
#pragma once
#include <memory>
#include <functional>
#include "./macros.hpp"
// a few that will be C++14, use in advance....
namespace std {
namespace c14 {
// helpers
template <bool B, class T, class F> using conditional_t = typename conditional<B, T, F>::type;
template <class T> using result_of_t = typename result_of<T>::type;
template <class T> using remove_reference_t = typename remove_reference<T>::type;
template <class T> using add_const_t = typename add_const<T>::type;
template <class T> using remove_const_t = typename remove_const<T>::type;
template <class T> using decay_t = typename decay<T>::type;
template <bool B, class T = void> using enable_if_t = typename enable_if<B, T>::type;
// use simply std::c14::plus<>() ...
template<typename T = void> struct plus: std::plus<T>{};
template<> struct plus<void> {
template<typename T, typename U>
auto operator()( T&& t, U&& u) const DECL_AND_RETURN(std::forward<T>(t) + std::forward<U>(u));
};
// use simply std::c14::plus<>() ...
template<typename T = void> struct greater: std::greater<T>{};
template<> struct greater<void> {
template<typename T, typename U>
auto operator()( T&& t, U&& u) const DECL_AND_RETURN(std::forward<T>(t) > std::forward<U>(u));
};
template<typename T = void> struct less: std::less<T>{};
template<> struct less<void> {
template<typename T, typename U>
auto operator()( T&& t, U&& u) const DECL_AND_RETURN(std::forward<T>(t) < std::forward<U>(u));
};
template<typename T, typename... Args>
std::unique_ptr<T> make_unique(Args&&... args) { return std::unique_ptr<T>(new T(std::forward<Args>(args)...)); }
}
}
namespace std14 {
using namespace std::c14;
}