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--- 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;