MRPT  1.9.9
optional_ref.h
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1 /* +------------------------------------------------------------------------+
2  | Mobile Robot Programming Toolkit (MRPT) |
3  | https://www.mrpt.org/ |
4  | |
5  | Copyright (c) 2005-2019, Individual contributors, see AUTHORS file |
6  | See: https://www.mrpt.org/Authors - All rights reserved. |
7  | Released under BSD License. See: https://www.mrpt.org/License |
8  +------------------------------------------------------------------------+ */
9 #pragma once
10 
11 #include <functional> // reference_wrapper
12 #include <optional> // optional
13 
14 namespace mrpt
15 {
16 /** Shorter name for std::optional<std::reference_wrapper<T>>
17  * \ingroup mrpt_core_grp
18  */
19 template <class T>
20 using optional_ref = std::optional<std::reference_wrapper<T>>;
21 
22 } // namespace mrpt
std::optional< std::reference_wrapper< T > > optional_ref
Shorter name for std::optional<std::reference_wrapper<T>>
Definition: optional_ref.h:20
This is the global namespace for all Mobile Robot Programming Toolkit (MRPT) libraries.



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