match.cpp

#include <chrono>
#include <random>
#include <iostream>

template<typename T> struct match_impl {
	template<typename F> match_impl& operator()(const T& cond, F f) {
		if (value == cond) f();
		return *this;
	}

	const T& value;
};

template<typename T> match_impl<T> match(const T& value) {
	return match_impl<T>{value};
}

int main() {
	std::mt19937 engine(std::chrono::system_clock::now().time_since_epoch().count());
	std::uniform_int_distribution<int> distribution{0, 9};

	const auto value(distribution(engine));
	std::cout << value << std::endl;
	match(value)
		(0, [] { std::cout << "one\n"; })
		(1, [] { std::cout << "two\n"; });
}