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#ifndef _LOGGING_H
#define _LOGGING_H
#define deg printf
#ifdef ENABLE_TRACING
#define ENTER() do { fprintf(stderr, "%s: ENTER\n", __FUNCTION__); } while(0)
#define LEAVE() do { fprintf(stderr, "%s: LEAVE\n", __FUNCTION__); } while(0)
#else
#define ENTER() do { } while(0)
#define LEAVE() do { } while(0)
#endif
#endif /* _LOGGING_H */
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原文地址:http://www.cnblogs.com/xuyh/p/4519950.html