C++ String to size_t Conversion: A Simple Guide

To convert a string to 'size_t' in C++, you can use the 'std::stoull' function. Here's an example:

#include <iostream>
#include <string>

int main() {
    std::string str = "12345";
    size_t num = std::stoull(str);
    std::cout << "Converted value: " << num << std::endl;
    return 0;
}

In this example, the 'std::stoull' function is used to convert the string '12345' to a 'size_t' variable 'num'. The converted value is then printed using 'std::cout'.