How's the definition of the function dist(const point& p) should be if I wish to set the return type of the function as double?

Question

https://code.sololearn.com/c8uJcMAEmpE0/?ref=app

Answer 1

Just remove void and change to a double by uncommenting double where you have it. Then in the dist function remove the cout and uncomment the return of d.

double dist(const point& p);

double point::dist(const point& p) {
.....
return d;
}

Then in main change your cout so that the returned value is put into the output stream.

cout << " : " << p1.dist(p2);

Answer 2

It works. Thanks!