/usr/include/MYGUI/MyGUI_Singleton.h is in libmygui-dev 3.2.0-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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@file
@author George Evmenov
@date 02/2010
*/
/*
This file is part of MyGUI.
MyGUI is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
MyGUI is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with MyGUI. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __MYGUI_SINGLETON_H__
#define __MYGUI_SINGLETON_H__
#include "MyGUI_Diagnostic.h"
namespace MyGUI
{
#if MYGUI_COMPILER == MYGUI_COMPILER_MSVC || MYGUI_PLATFORM == MYGUI_PLATFORM_APPLE
template <class T>
class Singleton
#else
template <class T>
class MYGUI_EXPORT Singleton
#endif
{
public:
typedef Singleton<T> Base;
Singleton()
{
MYGUI_ASSERT(nullptr == msInstance, "Singleton instance " << getClassTypeName() << " already exsist");
msInstance = static_cast<T*>(this);
}
virtual ~Singleton()
{
MYGUI_ASSERT(nullptr != msInstance, "Destroying Singleton instance " << getClassTypeName() << " before constructing it.");
msInstance = nullptr;
}
static T& getInstance()
{
MYGUI_ASSERT(nullptr != getInstancePtr(), "Singleton instance " << getClassTypeName() << " was not created");
return (*getInstancePtr());
}
static T* getInstancePtr()
{
return msInstance;
}
static const char* getClassTypeName()
{
return mClassTypeName;
}
private:
static T* msInstance;
protected:
static const char* mClassTypeName;
};
} // namespace MyGUI
#endif // __MYGUI_SINGLETON_H__
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