-- FC70A00.A -- -- Grant of Unlimited Rights -- -- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687, -- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained -- unlimited rights in the software and documentation contained herein. -- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making -- this public release, the Government intends to confer upon all -- recipients unlimited rights equal to those held by the Government. -- These rights include rights to use, duplicate, release or disclose the -- released technical data and computer software in whole or in part, in -- any manner and for any purpose whatsoever, and to have or permit others -- to do so. -- -- DISCLAIMER -- -- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR -- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED -- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE -- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE -- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A -- PARTICULAR PURPOSE OF SAID MATERIAL. --* -- -- FOUNDATION DESCRIPTION: -- This file simulates a generic complex integer support package, to be -- used for tests covering generic formal packages. -- -- CHANGE HISTORY: -- 06 Dec 94 SAIC ACVC 2.0 -- --! generic -- Complex integer abstraction. type Int_Type is range <>; package FC70A00 is -- Simulate a generic complex integer support package. Complex integers -- are treated as coordinates in the Cartesian plane. type Complex_Type is private; Zero : constant Complex_Type; -- (0,0). One : constant Complex_Type; -- (1,0). function "-" (Right : Complex_Type) -- Invert a complex return Complex_Type; -- integer. function "+" (Left, Right : Complex_Type) -- Add two complex return Complex_Type; -- integers. function "*" (Left, Right : Complex_Type) -- Multiply two complex return Complex_Type; -- integers. function Reciprocal (Right : Complex_Type) -- Return the reciprocal return Complex_Type; -- of a complex integer. function Complex (Real, Imag : Int_Type) -- Create a complex return Complex_Type; -- integer. private type Complex_Type is record Real : Int_Type; Imag : Int_Type; end record; Zero : constant Complex_Type := (Real => 0, Imag => 0); One : constant Complex_Type := (Real => 1, Imag => 0); end FC70A00; --==================================================================-- package body FC70A00 is -- Complex integer abstraction. function Complex (Real, Imag : Int_Type) return Complex_Type is begin return ( (Real, Imag) ); end Complex; --==============================================-- function "-" (Right : Complex_Type) return Complex_Type is begin return ( (-Right.Real, -Right.Imag) ); end "-"; --==============================================-- function "+" (Left, Right : Complex_Type) return Complex_Type is begin return ( (Left.Real + Right.Real, Left.Imag + Right.Imag) ); end "+"; --==============================================-- function "*" (Left, Right : Complex_Type) return Complex_Type is begin return ( (Real => (Left.Real * Right.Real) - (Left.Imag * Right.Imag), Imag => (Left.Imag * Right.Real) + (Left.Real * Right.Imag)) ); end "*"; --==============================================-- function Reciprocal (Right : Complex_Type) return Complex_Type is Denominator : Int_Type := Right.Real**2 + Right.Imag**2; begin -- NOTE: Results are truncated. return ( (Right.Real/Denominator, -Right.Imag/Denominator) ); end Reciprocal; end FC70A00;