Ada 2012 Reference Manual
A.5.4 Attributes of Fixed Point Types
Static Semantics
The following representation-oriented attributes are defined for every subtype S of a fixed point type T.
S'Machine_Radix
Yields the radix of the hardware representation of the type T. The value of this attribute is of the type universal_integer.
S'Machine_Rounds
Yields the value True if rounding is performed on inexact results of every predefined operation that yields a result of the type T; yields the value False otherwise. The value of this attribute is of the predefined type Boolean.
S'Machine_Overflows
Yields the value True if overflow and divide-by-zero are detected and reported by raising Constraint_Error for every predefined operation that yields a result of the type T; yields the value False otherwise. The value of this attribute is of the predefined type Boolean.
