add_lvalue_reference.hpp

Go to the documentation of this file.

// SPDX-License-Identifier: BSL-1.0
// SPDX-FileCopyrightText: Copyright (C) 2019 Tobias Hienzsch
 
#ifndef TETL_TYPE_TRAITS_ADD_LVALUE_REFERENCE_HPP
#define TETL_TYPE_TRAITS_ADD_LVALUE_REFERENCE_HPP
 
#include <etl/_type_traits/type_identity.hpp>
 
namespace etl {
 
namespace detail {
 
template <typename T>
auto try_add_lvalue_reference(int) -> type_identity<T&>;
 
template <typename T>
auto try_add_lvalue_reference(...) -> type_identity<T>;
 
} // namespace detail
 
/// \brief Creates a lvalue reference type of T.
/// \headerfile etl/type_traits.hpp
template <typename T>
struct add_lvalue_reference : decltype(detail::try_add_lvalue_reference<T>(0)) { };
 
/// \relates add_lvalue_reference
template <typename T>
using add_lvalue_reference_t = typename add_lvalue_reference<T>::type;
 
} // namespace etl
 
#endif // TETL_TYPE_TRAITS_ADD_LVALUE_REFERENCE_HPP