diff options
Diffstat (limited to 'src/list/operation/higher/take_while.h')
| -rw-r--r-- | src/list/operation/higher/take_while.h | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/src/list/operation/higher/take_while.h b/src/list/operation/higher/take_while.h index 8e61c45..dec5551 100644 --- a/src/list/operation/higher/take_while.h +++ b/src/list/operation/higher/take_while.h @@ -5,19 +5,21 @@ namespace tav { +namespace detail { + template < template<typename> class Predicate, typename Current > struct TakeWhile { - typedef Eval<If< + typedef If< Eval<Predicate<Head<Current>>>, - Eval<Cons< + Cons< Head<Current>, Eval<TakeWhile<Predicate, Tail<Current>>> - >>, + >, void - >> type; + > type; }; template < @@ -29,4 +31,12 @@ struct TakeWhile<Predicate, void> { } +template < + template<typename> class Predicate, + typename Current +> +using TakeWhile = Eval<detail::TakeWhile<Predicate, Current>>; + +} + #endif // TYPEASVALUE_SRC_LIST_OPERATION_HIGHER_TAKE_WHILE_H_ |