Ada Programming/Ada 83
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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:
- abort
- abs
- accept
- access
- all
- and
- array
- at
- begin
- body
- case
- constant
- declare
- delay
- delta
- digits
- do
- else
- elsif
- end
- entry
- exception
- exit
- for
- function
- generic
- goto
- if
- in
- is
- limited
- loop
- mod
- new
- not
- null
- of
- or
- others
- out
- package
- pragma
- private
- procedure
- raise
- range
- record
- rem
- renames
- return
- reverse
- select
- separate
- subtype
- task
- terminate
- then
- type
- use
- when
- while
- with
- xor
Pragmas
Has 14 pragmas:
- pragma Controlled
- pragma Elaborate
- pragma Inline
- pragma Interface (obsolescent since Ada 95)
- pragma List
- pragma Memory_Size (obsolescent since Ada 95)
- pragma Optimize
- pragma Pack
- pragma Page
- pragma Priority
- pragma Shared (obsolescent since Ada 95)
- pragma Storage_Unit (obsolescent since Ada 95)
- pragma Suppress
- pragma System_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
- Ada Programming/Ada 95
- Ada Programming/Ada 2005
- Ada Programming/Ada 2012
- Ada Programming/Keywords
- Ada Programming/Attributes
- Ada Programming/Pragmas
References
- Ada 83 Language Reference Manual
- Rationale for the Design of the Ada Programming Language
- Ada 83 Quality and Style: Guidelines for Professional Programmers
Further reading
- Karl A. Nyberg (Editor), The Annotated Ada Reference Manual, 3rd Edition (March 1994).
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