43 lines
1.3 KiB
C++
43 lines
1.3 KiB
C++
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/*
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* Copyright (C) 2016 Jared Boone, ShareBrained Technology, Inc.
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __OPTIONAL_H__
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#define __OPTIONAL_H__
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#include <utility>
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template<typename T>
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class Optional {
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public:
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constexpr Optional() : value_ { }, valid_ { false } { };
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constexpr Optional(const T& value) : value_ { value }, valid_ { true } { };
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constexpr Optional(T&& value) : value_ { std::move(value) }, valid_ { true } { };
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bool is_valid() const { return valid_; };
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T value() const { return value_; };
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private:
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T value_;
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bool valid_;
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};
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#endif/*__OPTIONAL_H__*/
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