[詳解] 14 #define DTPRINTF(bits, format, ...) if(bits & DEBUGTBITS) eprintf(format, ## __VA_ARGS__) 15 #define DTFPRINTF(bits, format, ...) if(bits & DEBUGTBITS) eprintf("%s: " format, __FUNCTION__, ## __VA_ARGS__) 16 #define XDUMP(bits, data, len) if(bits & DEBUGTBITS) xdump(data, len) 18 #define DTPRINTF(bits, format, ...) 19 #define DTFPRINTF(bits, format, ...) 20 #define XDUMP(bits, data, len)