addressof.hpp

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// SPDX-License-Identifier: BSL-1.0
// SPDX-FileCopyrightText: Copyright (C) 2019 Tobias Hienzsch
 
#ifndef TETL_MEMORY_ADDRESSOF_HPP
#define TETL_MEMORY_ADDRESSOF_HPP
 
#include <etl/_config/all.hpp>
 
#include <etl/_type_traits/is_object.hpp>
 
namespace etl {
 
/// Obtains the actual address of the object or function arg, even in presence of overloaded operator&.
template <typename T>
    requires(is_object_v<T>)
constexpr auto addressof(T& arg) noexcept -> T*
{
    return __builtin_addressof(arg);
}
 
/// Obtains the actual address of the object or function arg, even in presence of overloaded operator&.
template <typename T>
    requires(not is_object_v<T>)
constexpr auto addressof(T& arg) noexcept -> T*
{
    return &arg;
}
 
template <typename T>
auto addressof(T const&& /*ignore*/) = delete;
 
} // namespace etl
 
#endif // TETL_MEMORY_ADDRESSOF_HPP