This works just fine, however, the assignment was to write a recursive "function". I'm curious to see if this should count.
Any comments / suggestions/ stuff I should watch out for are appreciated.
#include <iostream>
#include <functional>
#include <cctype>
#include <cstdlib>
int main() {
char go_again = 'Y';
do {
int lhs, rhs;
std::cout << "Enter 2 integer values: ";
std::cin >> lhs >> rhs;
if (lhs < 0 || rhs < 0)
std::cout << "Implicit converstion to positive integers.\n";
std::function<int(int, int)>
gcd = [&](int lhs, int rhs) -> int {
return rhs == 0 ? std::abs(lhs) : gcd(rhs, lhs % rhs);
};
std::cout << "gcd == " << gcd(lhs, rhs) << '\n';
std::cout << "Go again? <Y/N> ";
std::cin >> go_again;
} while (std::toupper(go_again) == 'Y');
}
