gistfile1.txt

#define DEBUG_TRACE_LEVEL 4

#ifdef DEBUG
    #if (DEBUG_TRACE_LEVEL == 0)
        #define HOLog(log,...) NSLog((@"[File %s] [Function %s] [Line %d]\n" log), __FILE__,__PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__)
    #elif (DEBUG_TRACE_LEVEL == 1)
        #define HOLog(log,...) NSLog((@"\n[Function %s] [Line %d]\n" log), __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__)
    #elif (DEBUG_TRACE_LEVEL == 2)
        #define HOLog(log,...) NSLog((@"%s\n" log), __PRETTY_FUNCTION__, ##__VA_ARGS__)
    #else
        #define HOLog(log,...)    NSLog(log, ##__VA_ARGS__)
    #endif
#else
    #define HOLog(...) //nothing output for distribution
#endif