Ada Programming/Attributes/'Unbiased Rounding

Description
X'Unbiased_Rounding(Y) is an Ada attribute where X is any floating-point type and Y is any instance of that type. This attribute represents the closest integer value to Y. If Y is exactly between two integer values (e.g. 1.5), then the result is the even value (e.g. 2.0).

Example
X : Float := 1.5; Y : Float := 1.0; Z : Float := 1.999; ... (Float'Unbiased_Rounding(X) = 2.0); (Float'Unbiased_Rounding(Y) = 1.0); (Float'Unbiased_Rounding(Z) = 2.0); (Float'Unbiased_Rounding(X) = 1.0); ... X := 2.5; (Float'Unbiased_Rounding(X) = 2.0 ); (Float'Unbiased_Rounding(X) = 3.0 );

Wikibook

 * Ada Programming
 * Ada Programming/Attributes
 * Ada Programming/Attributes/'Ceiling
 * Ada Programming/Attributes/'Floor
 * Ada Programming/Attributes/'Rounding

Ada Reference Manual


|Unbiased Rounding