diff options
Diffstat (limited to 'src/list/list.h')
| -rw-r--r-- | src/list/list.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/list/list.h b/src/list/list.h index edd46e8..f21d0fc 100644 --- a/src/list/list.h +++ b/src/list/list.h @@ -27,6 +27,16 @@ using Head = Car<Cons>; template <typename Cons> using Tail = Cdr<Cons>; +template <typename Cons> +struct Length { + typedef Add<Size<1>, typename Length<Cdr<Cons>>::type> type; +}; + +template <> +struct Length<void> { + typedef Size<0> type; +}; + template < typename Primary, typename Secondary |