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This International Standard contains thirteen sections, fourteen annexes, and an index.
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The core of the Ada language consists of:
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The following Specialized Needs Annexes define features that are needed by certain application areas:
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The core language and the Specialized Needs Annexes are normative, except that the material in each of the items listed below is informative:
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All implementations shall conform to the core language. In addition, an implementation may conform separately to one or more Specialized Needs Annexes.
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The following Annexes are informative:
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Each section is divided into clauses and subclauses that have a common structure. Each section, clause, and subclause first introduces its subject. After the introductory text, text is labeled with the following headings:
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Syntax rules (indented).
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Compile−time rules that are used in name resolution, including overload resolution.
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Rules that are enforced at compile time. A construct is legal if it obeys all of the Legality Rules.
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A definition of the compile−time effect of each construct.
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Rules that are enforced before running a partition. A partition is legal if its compilation units are legal and it obeys all of the Post−Compilation Rules.
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A definition of the run−time effect of each construct.
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Situations that result in bounded (run−time) errors (see 1.1.5).
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Situations that result in erroneous execution (see 1.1.5).
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Additional requirements for conforming implementations.
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Documentation requirements for conforming implementations.
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Metrics that are specified for the time/space properties of the execution of certain language constructs.
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Additional permissions given to the implementer.
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Optional advice given to the implementer. The word "should" is used to indicate that the advice is a recommendation, not a requirement. It is implementation defined whether or not a given recommendation is obeyed.
NOTES
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1 Notes emphasize consequences of the rules described in the (sub)clause or elsewhere. This material is informative.
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Examples illustrate the possible forms of the constructs described. This material is informative.