printf print line no and file name

printf_file_name_line_no.c

#include <stdio.h>

/* redefine printf for the rest of file. */
#define printf(...) \ 
do { \
    printf("%s: %d:\t", __FILE__, __LINE__);\    
    printf(__VA_ARGS__);\
} while (0)

/* after this point, each call to printf will be replaced by two. */


int main(void)
{
    printf("Hello\n");
    return 0;
}