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#ifndef TYPEASVALUE_SRC_LIST_OPERATION_HIGHER_FOLD_H_
#define TYPEASVALUE_SRC_LIST_OPERATION_HIGHER_FOLD_H_
namespace tav {
namespace detail {
template <
template<typename, typename> class Function,
typename Initial,
typename Pair
>
struct fold_pair {
typedef Function<
Car<Pair>,
Eval<fold_pair<Function, Initial, Cdr<Pair>>>
> type;
};
template <
template<typename, typename> class Function,
typename Initial
>
struct fold_pair<Function, Initial, void> {
typedef Initial type;
};
}
template <
template<typename, typename> class Function,
typename Initial,
typename List
>
using Fold = Eval<detail::fold_pair<Function, Initial, List>>;
}
#endif // TYPEASVALUE_SRC_LIST_OPERATION_HIGHER_FOLD_H_
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