print.c

#include <unistd.h>
#include <stdio.h>

int main() {
        write(0, "write 0\n", 8);
        write(1, "write 1\n", 8);
        write(2, "write 2\n", 8);

        fprintf(stdin, "fprintf stdin\n");
        fprintf(stdout, "fprintf stdout\n");
        fprintf(stderr, "fprintf stderr\n");

        printf("stdin fd: %d\nstdout fd: %d\nstderr fd: %d\n",
                        stdin->_fileno,
                        stdout->_fileno,
                        stderr->_fileno);

        return 0;
}

// write 0  <- ???
// write 1
// write 2
// fprintf stdout
// fprintf stderr
// stdin fd: 0
// stdout fd: 1
// stderr fd: 2