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