mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-13 19:54:39 +00:00
43 lines
1.3 KiB
C++
43 lines
1.3 KiB
C++
/*
|
|
* Copyright (C) 2016 Jared Boone, ShareBrained Technology, Inc.
|
|
*
|
|
* This file is part of PortaPack.
|
|
*
|
|
* This program 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 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program 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 this program; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, Inc., 51 Franklin Street,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef __OPTIONAL_H__
|
|
#define __OPTIONAL_H__
|
|
|
|
#include <utility>
|
|
|
|
template<typename T>
|
|
class Optional {
|
|
public:
|
|
constexpr Optional() : value_ { }, valid_ { false } { };
|
|
constexpr Optional(const T& value) : value_ { value }, valid_ { true } { };
|
|
constexpr Optional(T&& value) : value_ { std::move(value) }, valid_ { true } { };
|
|
|
|
bool is_valid() const { return valid_; };
|
|
T value() const { return value_; };
|
|
|
|
private:
|
|
T value_;
|
|
bool valid_;
|
|
};
|
|
|
|
#endif/*__OPTIONAL_H__*/
|