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dft_tools/triqs/utility/c14.hpp
Olivier Parcollet 85141350e7 remove warnings in compilation
- triqs & tests now compiles with -Wall on clang (3.2)
Checked on OS X.
Todo : recheck on other compilers.
2014-01-30 22:17:28 +01:00

63 lines
2.3 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 <tuple>
// 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 remove_reference_t = typename remove_reference<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));
};
template<typename T, typename... Args>
std::unique_ptr<T> make_unique(Args&&... args) { return std::unique_ptr<T>(new T(std::forward<Args>(args)...)); }
// a little helper class to wait for the correction that tuple construct is NOT explicit
template<typename ... Args>
class tuple : public std::tuple<Args...> {
public :
template<typename ... Args2>
tuple(Args2 && ... args2) : std::tuple<Args...> (std::forward<Args2>(args2)...){}
};
}
// minimal hack to get the metaprogramming work with this tuple too....
template<int i, typename ... Args>
auto get(c14::tuple<Args...> const & t) DECL_AND_RETURN( std::get<i>(static_cast<std::tuple<Args...>>(t)));
template<typename ... Args> class tuple_size<c14::tuple<Args...>>: public tuple_size<std::tuple<Args...>>{};
}