4.1 Utility: struct_cast & tuple_cast

struct_cast, tuple_cast

compile time conversion for same aligned struct/tuple

struct AggregateType
{
	int i;
	std::string s;
	char c;
	bool b;
};

auto tv = dku::model::tuple_cast(AggregateType{});
static_assert(std::is_same_v<decltype(tv), std::tuple<int, std::string, char, bool>>);
auto sv = dku::model::struct_cast<AggregateType>(tv);
static_assert(std::is_same_v<decltype(sv), AggregateType>);

bindables

get compile time count of struct members, size of tuple, size of trivial/standard layout/pod types.

static_assert(dku::model::number_of_bindables<AggregateType>() == 4);
static_assert(dku::model::number_of_bindables<decltype(tv)>() == 4);
static_assert(dku::model::number_of_bindables<decltype(av)>() == 4);