//Paul A. Gagniuc. An Introduction to Programming Languages: Simultaneous Learning in Multiple Coding Environments. Synthesis Lectures on Computer Science. Springer International Publishing, 2023, pp. 1-280.
//Additional algorithm 22. Here the positive increment while-loop structure is demonstrated. A variable i is declared and set to zero. A while loop structure increments variable i from its initial value to its upper limit (number five). At each iteration, variable i is printed in the output. The result is an enumeration of values from 0 to 4. Note that the source code is in context and works with copy/paste.

#include <iostream>
using namespace std;

int main()
{
    int i = 0;

    while (i < 5) {
        cout<<"\n i = "<<i;
        i++;
    }

    return 0;
}