Value returning 5.0000, not include decimal

[trouty323]

Hello, my take two values of type int and divide by three other values of type int. This value is stored in the variable "answer". However, when i do this the answer it gives back is 5.0000, but the actual value should be 5.2204. Any suggestions?

// Program Numbers sends numbers to the output stream in
// specified formats.

#include <iostream>
#include <iomanip>
using namespace std;

const int NUM1 = 1066;
const int NUM2 = 1492;
const int NUM3 = 512;
const int NUM4 = 1;
const int NUM5 = -23;

int main ()
{

float answer;

cout << fixed << showpoint;
cout << setw(10) << NUM1 << endl;
cout << setw(10) << NUM2 << endl;
cout << setw(10) << NUM3 << endl;
cout << setw(10) << NUM4 << endl;
cout << setw(10) << NUM5 << endl;

answer = (NUM1 + NUM2) / (NUM3 + NUM4 + NUM5);

cout << setw(10) << setprecision(4) << answer << endl;

system("pause");
return 0;
}

[sohguanh]

answer = (NUM1 + NUM2) / (NUM3 + NUM4 + NUM5);

I believe the above line C++ is doing the integer division instead of floating point division. Usually how I do is to put a . behind to "request" C++ to do floating point division.

E.g
answer = (1066. + 1492.) / (512. + 1. + -23.);

cout << fixed << setw(10) << setprecision(4) << answer << "\n";

[trouty323]

Thanks. Your post made me think of something we did in class. The way we do this is:


answer = float(NUM1 + NUM2) / float(NUM3 + NUM4 + NUM5);