use function template params to concatenate parameters that can be inserted to streams sort of like a simple formatting function

simple_string_concatination.cpp

template<typename...Args>
std::string concat(Args...args)
{
	std::stringstream stream;
	((stream << args), ...);
	return std::move(stream.str());
}

int main()
{
	constexpr auto something=10;
	constexpr auto somethingelse=11;
	auto msg{concat("something=", something, ", else=", else)};

	std::cout << msg << std::endl; // writes "something=10, else=11"
}