Ada Reference Manual
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J.11 The Class Attribute of Untagged Incomplete Types
Static Semantics
1/2
For the first subtype S of a type
T
declared by an
incomplete_type_declaration
that is not tagged, the following attribute is defined:
2/2
S'
Class
Denotes the first subtype of the incomplete class-wide type rooted at
T
. The completion of
T
shall declare a tagged type. Such an attribute reference shall occur in the same library unit as the
incomplete_type_declaration
.
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