用于单例模式的类声明宏

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Author: RobertBaker

Version: 1.0

Comments: 用于单例模式的类声明宏

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#ifndef CsMacro_H

#define CsMacro_H

#include <stdlib.h>

#define DECLARE_SINGLE(CLASSNAME) public: static CLASSNAME * GetSingle() { if (m_pSingle == NULL) { m_pSingle = new CLASSNAME; atexit(CloseSingle); } return m_pSingle; } static BOOL IsCreated() { return m_pSingle != NULL; } static void CloseSingle() { if (m_pSingle == NULL) { return; } delete m_pSingle; m_pSingle = NULL; } private: static CLASSNAME *m_pSingle;

#define IMPLEMENT_SINGLE(CLASSNAME) CLASSNAME *CLASSNAME::m_pSingle = NULL;

#endif

注: 对于模态对话框不适用