Ada Programming/Keywords


Ada. Time-tested, safe and secure.
Ada. Time-tested, safe and secure.

Language summary keywords

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Most Ada “keywords” have different functions depending on where they are used. A good example is for which controls the representation clause when used within a declaration part and controls a loop when used within an implementation.

In Ada, a keyword is a reserved word, so it cannot be used as an identifier. Some of them are used as attribute names.

List of keywords

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Ada Keywords
abort else new return
abs elsif not reverse
abstract (Ada 95) end null
accept entry select
access exception of separate
aliased (Ada 95) exit or some (Ada 2012)
all others subtype
and for out synchronized (Ada 2005)
array function overriding (Ada 2005)
at tagged (Ada 95)
generic package task
begin goto parallel (Ada 2022) terminate
body pragma then
if private type
case in procedure
constant interface (Ada 2005) protected (Ada 95) until (Ada 95)
is use
declare raise
delay limited range when
delta loop record while
digits rem with
do mod renames
requeue (Ada 95) xor

See also

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Wikibook

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Ada Reference Manual

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Ada 83

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Ada 95

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Ada 2005

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Ada 2012

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Ada 2022

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Ada Quality and Style Guide

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