Ada 2012 Reference Manual
A.18.12 The Generic Package Containers.Indefinite_Doubly_Linked_Lists
The language-defined generic package Containers.Indefinite_Doubly_Linked_Lists provides private types List and Cursor, and a set of operations for each type. It provides the same operations as the package Containers.Doubly_Linked_Lists (see A.18.3), with the difference that the generic formal Element_Type is indefinite.
Static Semantics
The declaration of the generic library package Containers.Indefinite_Doubly_Linked_Lists has the same contents and semantics as Containers.Doubly_Linked_Lists except:
- The generic formal Element_Type is indefinite.
- The procedure with the profile:
procedure Insert (Container : in out List;
Before : in Cursor;
Position : out Cursor;
Count : in Count_Type := 1);
Before : in Cursor;
Position : out Cursor;
Count : in Count_Type := 1);
is omitted.
- The actual Element parameter of access subprogram Process of Update_Element may be constrained even if Element_Type is unconstrained.
- The operations Append, Insert, Prepend, and Replace_Element that have a formal parameter of type Element_Type perform indefinite insertion (see A.18).
