mirror of
https://github.com/love2d/love.git
synced 2026-08-12 08:30:56 +02:00
Sasha Szpakowski
56 lines
1.4 KiB
C++
56 lines
1.4 KiB
C++
/**
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* Copyright (c) 2006-2023 LOVE Development Team
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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**/
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#pragma once
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namespace love
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{
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// Currently only meant for simple and small types.
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template <typename T>
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struct Optional
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{
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T value;
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bool hasValue;
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Optional()
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: value(T())
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, hasValue(false)
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{}
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Optional(T val)
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: value(val)
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, hasValue(true)
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{}
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void set(T val)
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{
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value = val;
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hasValue = true;
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}
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};
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typedef Optional<bool> OptionalBool;
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typedef Optional<float> OptionalFloat;
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typedef Optional<double> OptionalDouble;
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typedef Optional<int> OptionalInt;
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} // love
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