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AST_Entry

This attribute is implemented only in OpenVMS versions of GNAT. Applied to the name of an entry, it yields a value of the predefined type AST_Handler (declared in the predefined package System, as extended by the use of pragma Extend_System (Aux_DEC)). This value enables the given entry to be called when an AST occurs. For further details, refer to the DEC Ada Language Reference Manual, section 9.12a.