//
// Written for Computer Networks and Systems lab classes
// AUTHOR : Sergiusz Warga

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


int main() {
    int pipefd[2];
    if (pipe(pipefd) < 0){
    	fprintf(stderr,"Something went wrong!\n");
    	return -1;
    }
	
	int in = 42;
	int out = 0;

	write(pipefd[1], &in, sizeof(in));
	read(pipefd[0], &out, sizeof(out));
	close(pipefd[0]);

	if (!(in-out)) printf("Pipe works just fine!\n");
	
	return 0;
}