Ada Programming/Attributes/'To Address

Description

System'To_Address (X) is a GNAT specific attribute with the same purpose of function System.Storage_Elements.To_Address. The only difference is that it can be used in preelaborated units where non-static calls are not allowed. X is a value of that type System.Storage_Elements.Integer_Address (an implementation-defined integer type), and note that this attribute is not applied to the type of X but always to package System.

Example

Using the standard Ada To_Address function:

for Sensor'Address use System.Storage_Elements.To_Address (16#0FF2_1234#);

Using the GNAT specific To_Address attribute:

for Sensor'Address use System'To_Address (16#0FF2_1234#);

See also

Wikibook

• Ada Programming
• Ada Programming/Libraries/System.Storage_Elements

GNAT Reference Manual

• GNAT Implementation Defined Attributes: To_Address