Check out example codes for "c++ string to integer without stoi". It will help you in understanding the concepts better.

Code Example 1

#include <iostream>
#include <sstream>

using namespace std;

int main() 
{
    string s = "999";

    stringstream degree(s);

    int x = 0;
    degree >> x;

    cout << "Value of x: " << x;
}

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