Named arguments

main.cpp

#include <algorithm>
#include <cstdint>

#include <experimental/string_view> // already works in g++ 4.9.1

//format("{bla}, {blub}", "bla"_id = 3, "blub"_id = "foobar");

using std::experimental::string_view;

template<typename T>
struct id {
	id(string_view name, const T& data): name{name}, data{data} {}
	string_view name;
	const T& data;
};

struct id_base {
	string_view name;

	template<typename Arg>
	id<Arg> operator=(const Arg& arg) const {
		return id<Arg>{name, arg};
	}
};

id_base operator"" _id(const char* str, std::size_t len) {
	return id_base{{str, len}};
}


int main() {
	auto foo = ("abc"_id = 37);
}