1/**
2 * Copyright (c) 2006-2023 LOVE Development Team
3 *
4 * This software is provided 'as-is', without any express or implied
5 * warranty. In no event will the authors be held liable for any damages
6 * arising from the use of this software.
7 *
8 * Permission is granted to anyone to use this software for any purpose,
9 * including commercial applications, and to alter it and redistribute it
10 * freely, subject to the following restrictions:
11 *
12 * 1. The origin of this software must not be misrepresented; you must not
13 * claim that you wrote the original software. If you use this software
14 * in a product, an acknowledgment in the product documentation would be
15 * appreciated but is not required.
16 * 2. Altered source versions must be plainly marked as such, and must not be
17 * misrepresented as being the original software.
18 * 3. This notice may not be removed or altered from any source distribution.
19 **/
20
21#pragma once
22
23namespace love
24{
25
26// Currently only meant for simple and small types.
27template <typename T>
28struct Optional
29{
30 T value;
31 bool hasValue;
32
33 Optional()
34 : value(T())
35 , hasValue(false)
36 {}
37
38 Optional(T val)
39 : value(val)
40 , hasValue(true)
41 {}
42
43 void set(T val)
44 {
45 value = val;
46 hasValue = true;
47 }
48};
49
50typedef Optional<bool> OptionalBool;
51typedef Optional<float> OptionalFloat;
52typedef Optional<double> OptionalDouble;
53typedef Optional<int> OptionalInt;
54
55} // love
56