Ada Programming/Attributes/'Address

Description

X'Address is an Ada attribute where X is any object, subprogram, package, task, label or other entity.

'Address may be used to return the address of the first element allocated to X. 'Address may also be used to set the address of X.

Example

   -- Hardware register
   Device_Input_Value : Integer_32;
   for Device_Input_Value'Address use To_Address (16#8000_05C4#);

<<Entry_Point>>    -- Label
   for Entry_Point'Address use To_Address (16#0000_003A#);

See also

Wikibook

• Ada Programming
• Ada Programming/Attributes
• Ada Programming/Attributes/'Alignment

Ada Reference Manual

• 13.3 Operational and Representation Attributes (Annotated)
• Annex K Language-Defined Attributes (Annotated)