__FUNCTION__ __FILE__ __LINE__

#include <stdio.h>
int main(int argc, char **argv)
{
        unsigned char *filename = (unsigned char *)__FILE__;
        unsigned char *funname = (unsigned char *)__FUNCTION__;
        unsigned char *whcihline = (unsigned char *)__LINE__;

        printf("%s\n", filename);
        printf("%s\n", funname);
#if 0
        printf("%s\n", __FILE__);
        printf("%s\n", __FUNCTION__);
#endif
        printf("%d\n", __LINE__);
        return 0;
}

//__FUNCTION__  __FILE__ __LINE__  不是函数.