Next: , Previous: Pragma Async_Writers, Up: Implementation Defined Pragmas

2.18 Pragma Attribute_Definition


    pragma Attribute_Definition
      ([Attribute  =>] ATTRIBUTE_DESIGNATOR,
       [Entity     =>] LOCAL_NAME,
       [Expression =>] EXPRESSION | NAME);

If Attribute is a known attribute name, this pragma is equivalent to the attribute definition clause:

    for Entity'Attribute use Expression;

If Attribute is not a recognized attribute name, the pragma is ignored, and a warning is emitted. This allows source code to be written that takes advantage of some new attribute, while remaining compilable with earlier compilers.