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Annex F

(normative)

Information Systems

This Annex provides a set of facilities relevant to Information Systems programming. These fall into several categories:

an attribute definition clause specifying Machine_Radix for a decimal subtype;

the package Decimal, which declares a set of constants defining the implementation's capacity for decimal types, and a generic procedure for decimal division; and

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the child packages Text_IO.Editing, Wide_Text_IO.Editing, and Wide_Wide_Text_IO.Editing, which support formatted and localized output of decimal data, based on “picture String” values.

The character and string handling packages in Annex A, “Predefined Language Environment” are also relevant for Information Systems.

Implementation Advice

If COBOL (respectively, C) is widely supported in the target environment, implementations supporting the Information Systems Annex should provide the child package Interfaces.COBOL (respectively, Interfaces.C) specified in Annex B and should support a convention_identifier of COBOL (respectively, C) in the interfacing pragmas (see Annex B), thus allowing Ada programs to interface with programs written in that language.

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