diff options
Diffstat (limited to 'src/list/operation/higher/find.h')
| -rw-r--r-- | src/list/operation/higher/find.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/list/operation/higher/find.h b/src/list/operation/higher/find.h new file mode 100644 index 0000000..47b88ad --- /dev/null +++ b/src/list/operation/higher/find.h @@ -0,0 +1,30 @@ +#ifndef TYPEASVALUE_SRC_LIST_OPERATION_HIGHER_FIND_H_ +#define TYPEASVALUE_SRC_LIST_OPERATION_HIGHER_FIND_H_ + +#include "type.h" +#include "conditional/if.h" + +namespace tav { + +template < + template<typename> class Predicate, + typename Current +> +struct Find { + typedef If< + Predicate<Head<Current>>::type::value, + Head<Current>, + typename Find<Predicate, Tail<Current>>::type + > type; +}; + +template < + template<typename> class Predicate +> +struct Find<Predicate, void> { + typedef Boolean<false> type; +}; + +} + +#endif // TYPEASVALUE_SRC_LIST_OPERATION_HIGHER_FIND_H_ |