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.. _Specialized_Needs_Annexes:
Specialized Needs Annexes
Ada 95, Ada 2005, and Ada 2012 define a number of Specialized Needs Annexes, which are not
required in all implementations. However, as described in this chapter,
GNAT implements all of these annexes:
*Systems Programming (Annex C)*
The Systems Programming Annex is fully implemented.
*Real-Time Systems (Annex D)*
The Real-Time Systems Annex is fully implemented.
*Distributed Systems (Annex E)*
Stub generation is fully implemented in the GNAT compiler. In addition,
a complete compatible PCS is available as part of the GLADE system,
a separate product. When the two
products are used in conjunction, this annex is fully implemented.
*Information Systems (Annex F)*
The Information Systems annex is fully implemented.
*Numerics (Annex G)*
The Numerics Annex is fully implemented.
*Safety and Security / High-Integrity Systems (Annex H)*
The Safety and Security Annex (termed the High-Integrity Systems Annex
in Ada 2005) is fully implemented.