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Enabled `Concatenate` to concatenate a variadic pack of lists
* analogously to arbitrary list count concatenation in Scheme's `append`
** implemented for `Concatenate` instead as it fits better with the structure between `Append` and `Concatenate`
Diffstat (limited to 'src/list/operation/concatenate.h')
-rw-r--r-- | src/list/operation/concatenate.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/src/list/operation/concatenate.h b/src/list/operation/concatenate.h index a5cbaa6..cf680c1 100644 --- a/src/list/operation/concatenate.h +++ b/src/list/operation/concatenate.h @@ -2,16 +2,23 @@ #define TYPEASVALUE_SRC_LIST_OPERATION_CONCATENATE_H_ #include "append.h" -#include "higher/remove.h" #include "higher/fold.h" +#include "conditional/if.h" namespace tav { -template <typename ListOfLists> +template < + typename Head, + typename... Tail +> using Concatenate = Fold< Append, void, - ListOfLists + If< + Boolean<sizeof...(Tail) == 0>, + Head, + List<Head, Tail...> + > >; } |