< Ada Programming
Ada. Time-tested, safe and secure.
Ada 83 is the first version of the Ada programming language. It was based in the so called Ada 80, a preliminary version of the language formally known as MIL-STD-1815 (published in December 1980). This standard was refined and standardized by the DoD and ANSI as ANSI/MIL-STD-1815A in February 1983 (note the additional 'A' at the end), which was later adopted by International Organization for Standardization as ISO/IEC 8652:1987.
Language features
Character set
- Identifiers in ASCII (7-Bit)
Summary of features
Keywords
Ada 83 has 63 keywords:
abortabsacceptaccessallandarrayatbeginbodycaseconstantdeclaredelaydeltadigitsdoelseelsifendentryexceptionexitforfunctiongenericgotoifinislimitedloopmodnewnotnulloforothersoutpackagepragmaprivateprocedureraiserangerecordremrenamesreturnreverseselectseparatesubtypetaskterminatethentypeusewhenwhilewithxor
Pragmas
Has 14 pragmas:
pragmaControlledpragmaElaboratepragmaInlinepragmaInterface (obsolescent since Ada 95)pragmaListpragmaMemory_Size (obsolescent since Ada 95)pragmaOptimizepragmaPackpragmaPagepragmaPrioritypragmaShared (obsolescent since Ada 95)pragmaStorage_Unit (obsolescent since Ada 95)pragmaSuppresspragmaSystem_Name (obsolescent since Ada 95)
Attributes
Has 40 attributes:
- Address
- Aft
- Base
- Callable
- Constrained
- Count
- Delta
- Digits
- Emax (obsolescent since Ada 95)
- Epsilon (obsolescent since Ada 95)
- First
- First_Bit
- Fore
- Image
- Large (obsolescent since Ada 95)
- Last
- Last_Bit
- Length
- Machine_Emax
- Machine_Emin
- Machine_Mantissa
- Machine_Overflows
- Machine_Radix
- Machine_Rounds
- Mantissa (obsolescent since Ada 95)
- Pos
- Position
- Pred
- Range
- Safe_Emax (obsolescent since Ada 95)
- Safe_Large (obsolescent since Ada 95)
- Safe_Small (obsolescent since Ada 95)
- Size
- Small
- Storage_Size
- Succ
- Terminated
- Val
- Value
- Width
Library units
| Package | Standard |
| Nested package | Standard.ASCII |
| Package | Calendar |
| Package | System |
| Package | Machine_Code (implementation dependent) |
| Generic procedure | Unchecked_Deallocation |
| Generic function | Unchecked_Conversion |
| Generic package | Sequential_IO |
| Generic package | Direct_IO |
| Package | Text_IO |
| Generic nested package | Text_IO.Integer_IO |
| Generic nested package | Text_IO.Float_IO |
| Generic nested package | Text_IO.Fixed_IO |
| Generic nested package | Text_IO.Enumeration_IO |
| Package | IO_Exceptions |
| Package | Low_Level_IO (implementation dependent) |
See also
Wikibook
References
Further reading
- Karl A. Nyberg (Editor), The Annotated Ada Reference Manual, 3rd Edition (March 1994).
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