diff options
Diffstat (limited to 'src/list/operation/higher/query.h')
| -rw-r--r-- | src/list/operation/higher/query.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/list/operation/higher/query.h b/src/list/operation/higher/query.h index 29f65dc..c6eabc7 100644 --- a/src/list/operation/higher/query.h +++ b/src/list/operation/higher/query.h @@ -3,6 +3,7 @@ #include "fold.h" #include "misc.h" +#include "operation/math.h" #include "operation/logic.h" namespace tav { @@ -35,6 +36,16 @@ using None = Not< typename Any<Function, List>::type >; +template < + template<typename> class Function, + typename List +> +using Count = Fold< + Add, + tav::Size<0>, + typename Map<Function, List>::type +>; + } #endif // TYPEASVALUE_SRC_LIST_OPERATION_HIGHER_QUERY_H_ |