A.18.17 The Generic Package Containers.Indefinite_Multiway_Trees

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The language-defined generic package Containers.Indefinite_Multiway_Trees provides a multiway tree with the same operations as the package Containers.Multiway_Trees (see A.18.10), with the difference that the generic formal Element_Type is indefinite.

Static Semantics

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The declaration of the generic library package Containers.Indefinite_Multiway_Trees has the same contents and semantics as Containers.Multiway_Trees except:

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The generic formal Element_Type is indefinite.

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The procedure with the profile:

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procedure Insert_Child (Container : in out Tree;
                        Parent    : in     Cursor;
                        Before    : in     Cursor;
                        Position  :    out Cursor;
                        Count     : in     Count_Type := 1);

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is omitted.

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The actual Element parameter of access subprogram Process of Update_Element may be constrained even if Element_Type is unconstrained.

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The operations Append_Child, Insert_Child, Prepend_Child, and Replace_Element that have a formal parameter of type Element_Type perform indefinite insertion (see A.18).

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The description of Tampering_With_Elements_Prohibited is replaced by:

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Returns True if tampering with elements is prohibited for Container, and False otherwise.

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Tampering_With_Cursors_Prohibited is replaced by Tampering_With_Elements_Prohibited in the postcondition for the operations Reference and Constant_Reference.

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The operations Replace_Element and Swap are omitted from the nested package Stable.

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