Boxes a polymorphic key so groups can hold a growable array.
| Type | Visibility | Attributes | Name | Initial | |||
|---|---|---|---|---|---|---|---|
| class(nml_key_t), | public, | allocatable | :: | key |
type :: nml_key_box_t !! Boxes a polymorphic key so groups can hold a growable array. class(nml_key_t), allocatable :: key end type nml_key_box_t