listing2.4.cpp declare function outside main function

// listing2.4.cpp
#include <iostream>
using namespace std;

// declare function
int DemoConsoleOutput();
int main()
{
    // call invoke the function
    DemoConsoleOutput();
    return 0;
}

// define implement the previously declared function
int DemoConsoleOutput()
{
    cout << "This is simple string literal\n";
    cout << "Writing number five: " << 5 << endl;
    cout << "Performing division 10 / 5 = " << 10/5 << endl;
    cout << "Pi is 22/7 = " << 22.0/7.0 << endl;
    return 0;
}

output:

 

This is simple string literal
Writing number five: 5
Performing division 10 / 5 = 2
Pi is 22/7 = 3.14286

Process returned 0 (0x0)   execution time : 0.409 s
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