Ada Programming/Ada 80

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Ada 80 was a preliminary version of the Ada programming language. The Military Standard reference manual was approved on December 10, 1980 (Ada Lovelace's birthday), and given the number MIL-STD-1815 in honor of Ada Lovelace's birth year.

The Ada 83 standard, MIL-STD-1815A, was later derived from Ada 80.

Ada 80 is just interesting from a historic point of view, there is no code that must conform with this standard.

Summary of features

Pragmas

• pragma Controlled
• pragma Include (not in Ada 83)
• pragma Inline
• pragma Interface
• pragma List
• pragma Memory_Size
• pragma Optimize
• pragma Pack
• pragma Priority
• pragma Storage_Unit
• pragma Suppress
• pragma System_Name (named System in Ada 83)

The following pragmas were not defined in Ada 80, but were later added in Ada 83:

• pragma Elaborate (Ada 83 only)
• pragma Page (Ada 83 only)
• pragma Shared (Ada 83 only)

Attributes

• Actual_Delta (not in Ada 83)
• Address
• Base
• Bits (not in Ada 83)
• Constrained
• Count
• Delta
• Digits
• Emax
• Epsilon
• Failure (not in Ada 83)
• First
• First_Bit
• Image
• Large
• Last
• Last_Bit
• Length
• Machine_Emax
• Machine_Emin
• Machine_Mantissa
• Machine_Overflows
• Machine_Radix
• Machine_Rounds
• Mantissa
• Pos
• Position
• Pred
• Priority (not in Ada 83)
• Range
• Size
• Small
• Storage_Size
• Succ
• Terminated
• Val
• Value

The following attributes were later added to Ada 83:

• Aft (Ada 83 only)
• Callable (Ada 83 only)
• Fore (Ada 83 only)
• Safe_Emax (Ada 83 only)
• Safe_Large (Ada 83 only)
• Safe_Small (Ada 83 only)
• Width (Ada 83 only)

See also

Wikibook

• Ada Programming/Ada 83
• Ada Programming/Ada 95
• Ada Programming/Ada 2005
• Ada Programming/Ada 2012

References

• DoD (November 1980). The Programming Language Ada Reference Manual — Proposed Standard Document United States Department of Defense. http://www.springerlink.com/content/un24t0851755/. Retrieved 2008-06-06. 

External links

• History of the Ada Programming Language
• The naming of Ada (Janunary 1983)
• The History of Ada (March 1984)
• DoD's Common Programming Language Effort
• Ada—the project: the DoD high order language working group
• Introducing Ada
• The Department of Defense software initiative—a status report
• Ada: past, present, future
• The ACM position on standardization of the Ada language
• A Language is Born: Ada, IEEE Computer (November 1981) p.123 — Advertisement about Ada 80 books
• Ada, an analyst and a metaphysician (March 1991)