/* The following code example is taken from the book

* "The C++ Standard Library - A Tutorial and Reference, 2nd Edition"

* by Nicolai M. Josuttis, Addison-Wesley, 2012

*

* (C) Copyright Nicolai M. Josuttis 2012.

* Permission to copy, use, modify, sell and distribute this software

* is granted provided this copyright notice appears in all copies.

* This software is provided "as is" without express or implied

* warranty, and with no claim as to its suitability for any purpose.

*/

#include <string>

#include <iostream>

#include <limits>

#include <exception>

int main()

{

try {

// convert to numeric type

std::cout << std::stoi (" 77") << std::endl;

std::cout << std::stod (" 77.7") << std::endl;

std::cout << std::stoi ("-0x77") << std::endl;

// use index of characters not processed

std::size_t idx;

std::cout << std::stoi (" 42 is the truth", &idx) << std::endl;

std::cout << " idx of first unprocessed char: " << idx << std::endl;

// use bases 16 and 8

std::cout << std::stoi (" 42", nullptr, 16) << std::endl;

std::cout << std::stol ("789", &idx, 8) << std::endl;

std::cout << " idx of first unprocessed char: " << idx << std::endl;

// convert numeric value to string

long long ll = std::numeric_limits<long long>::max();

std::string s = std::to_string(ll); // converts maximum long long to string

std::cout << s << std::endl;

// try to convert back

std::cout << std::stoi(s) << std::endl; // throws out_of_range

}

catch (const std::exception& e) {

std::cout << e.what() << std::endl;

}

}