DUNE-FEM (unstable)

singleton.hh
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1// -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2// vi: set et ts=4 sw=2 sts=2:
3// SPDX-FileCopyrightInfo: Copyright © DUNE Project contributors, see file LICENSE.md in module root
4// SPDX-License-Identifier: LicenseRef-GPL-2.0-only-with-DUNE-exception
5#ifndef DUNE_SINGLETON_HH
6#define DUNE_SINGLETON_HH
7
9
17namespace Dune
18{
54 template<class T>
56 {
57 protected:
58 /* @brief Protected constructor. */
59 Singleton() = default;
60
61 public:
62
63 Singleton(const Singleton&) = delete;
64 void operator=(const Singleton&) = delete;
65
71 {
72 static T instance_;
73 return instance_;
74 }
75 };
76
77} // namespace Dune
78
79#endif
An adapter to turn a class into a singleton.
Definition: singleton.hh:56
static DUNE_EXPORT T & instance()
Get the instance of the singleton.
Definition: singleton.hh:70
Dune namespace.
Definition: alignedallocator.hh:13
Definition of macros controlling symbol visibility at the ABI level.
#define DUNE_EXPORT
Export a symbol as part of the public ABI.
Definition: visibility.hh:20
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