Ada Programming/Attributes/'Ceiling

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Description

X'Ceiling(Y) is an Ada attribute where X is any floating-point type and Y is any instance of that type. This attribute represents the smallest integer value that is greater than or equal to Y.

Example

X : Float := 1.5;
Y : Float := 1.0;
Z : Float := 1.999;
... 
pragma Assert (Float'Ceiling(X) = 2.0 );  -- OK
pragma Assert (Float'Ceiling(Y) = 1.0 );  -- OK
pragma Assert (Float'Ceiling(Z) = 1.0 );  -- Wrong

See also

Wikibook

• Ada Programming
• Ada Programming/Attributes
• Ada Programming/Attributes/'Floor
• Ada Programming/Attributes/'Rounding
• Ada Programming/Attributes/'Unbiased_Rounding

Ada Reference Manual

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