CODEWITHSUNDEEP
c++
user2826094
user2826094

Reputation: 133

Is there a way to observe values of variables in each iteration?

I'm new to learning how to code and I was wondering if there's a way to see values during each iteration of a loop. Here's a code I'm trying to understand. I know some of it but as it gets deeper, I get confused.

#include <iostream>
#include <string>

using std::cin; using std::endl;
using std::cout; using std::string;
int main()
{

    cout << "Please enter your first name: ";

    string name = "Jae";


    const string greeting = "Hello, " + name + "!";
    const int pad = 1;
    const int rows = pad * 2 + 3;
    const string::size_type cols = greeting.size() + pad * 2 + 2;
    cout << endl;

        for (int r = 0; r != rows; ++r) {
            string::size_type c = 0;
            while (c != cols) {
                if (r == pad + 1 && c == pad + 1) {
                cout << greeting;
                c += greeting.size();
                } else {
                    if (r == 0 || r == rows - 1 ||
                        c == 0 || c == cols - 1)
                        cout << "*";
                else
                        cout << " ";
                        ++c;
                        }
                            }
                cout << endl;
                                        }
}

Upvotes: 0

Views: 165

Answers (3)

Masood Khaari
Masood Khaari

Reputation: 3061

Google is your friend.

Mastering Debugging in Visual Studio 2010 - A Beginner's Guide

Simply you can execute your program line-by-line by pressing F10 key. And hovering mouse over variables shows their current value.

Upvotes: 0

ali insan
ali insan

Reputation: 189

if r is your iterator, write inside the loop this line:

cout << r;

Upvotes: 0

t1w
t1w

Reputation: 1428

You can debug your code. If you debug, you can see values during each iteration of a loop

Upvotes: 1

Related Questions