sha512sum/utempl
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add Map, another name for Transform

Browse source
This commit is contained in:
sha512sum 2024-03-26 08:33:01 +00:00
parent f43eae6080
commit 9cb0811ecc
1 changed files with 8 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
include/utempl/utils.hpp
View file

@ -162,13 +162,19 @@ template <typename T>
concept TupleLike = kForceEnableTuple<std::remove_cvref_t<T>> || (requires{Get<0>(MakeTuple<T>(42));} && impl::IsSafeTuple<std::remove_cvref_t<T>>::value);
template <TupleLike Tuple, typename R = Tuple>
inline constexpr auto Transform(Tuple&& container, auto&& f, TypeList<R> = {}) {
template <TupleLike Tuple, typename R = Tuple, typename F>
inline constexpr auto Transform(Tuple&& container, F&& f, TypeList<R> = {}) {
return [&]<auto... Is>(std::index_sequence<Is...>){
return MakeTuple<R>(f(Get<Is>(std::forward<Tuple>(container)))...);
}(std::make_index_sequence<kTupleSize<Tuple>>());
};
template <TupleLike Tuple, typename R, typename F>
inline constexpr auto Map(Tuple&& tuple, F&& f, TypeList<R> result = {}) {
return Transform(std::forward<Tuple>(tuple), std::forward<F>(f), result);
};
template <TupleLike Tuple>
inline constexpr auto Reverse(Tuple&& tuple) {
return [&]<auto... Is>(std::index_sequence<Is...>) {