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-- CC70A01.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.
--*
--
-- OBJECTIVE:
-- Check that the visible part of a generic formal package includes the
-- first list of basic declarative items of the package specification.
-- Check for a generic package which declares a formal package with (<>)
-- as its actual part.
--
-- TEST DESCRIPTION:
-- The "first list of basic declarative items" of a package specification
-- is the visible part of the package. Thus, the declarations in the
-- visible part of the actual instance corresponding to a formal
-- package are available in the generic which declares the formal package.
--
-- Declare a generic package which simulates a complex integer abstraction
-- (foundation code).
--
-- Declare a second, library-level generic package which utilizes the
-- first generic package as a generic formal package (with a (<>)
-- actual_part). In the second generic package, declare objects, types,
-- and operations in terms of the objects, types, and operations declared
-- in the first generic package.
--
-- In the main program, instantiate the first generic package, then
-- instantiate the second generic package and pass the first instance
-- to it as a generic actual parameter. Check that the operations in
-- the second instance perform as expected.
--
--
-- CHANGE HISTORY:
-- 06 Dec 94 SAIC ACVC 2.0
--
--!
with FC70A00; -- Generic complex integer operations.
generic -- Generic complex matrix operations.
with package Complex_Package is new FC70A00 (<>);
package CC70A01_0 is
type Complex_Matrix_Type is -- 1st index is matrix
array (Positive range <>, Positive range <>) -- row, 2nd is column.
of Complex_Package.Complex_Type;
Dimension_Mismatch : exception;
function Identity_Matrix (Size : Positive) -- Create identity matrix
return Complex_Matrix_Type; -- of specified size.
function "*" (Left : Complex_Matrix_Type; -- Multiply two complex
Right : Complex_Matrix_Type) -- matrices.
return Complex_Matrix_Type;
end CC70A01_0;
--==================================================================--
package body CC70A01_0 is -- Generic complex matrix operations.
use Complex_Package;
--==============================================--
function Inner_Product (Left, Right : Complex_Matrix_Type;
Row, Column : Positive) -- Compute inner product
return Complex_Package.Complex_Type is -- for matrix-multiply.
Result : Complex_Type := Zero;
subtype Vector_Size is Positive range Left'Range(2);
begin -- Inner_Product.
for I in Vector_Size loop
Result := Result + -- Complex_Package."+".
(Left(Row, I) * Right(I, Column)); -- Complex_Package."*".
end loop;
return (Result);
end Inner_Product;
--==============================================--
function Identity_Matrix (Size : Positive) return Complex_Matrix_Type is
Result : Complex_Matrix_Type (1 .. Size, 1 .. Size) :=
(others => (others => Zero)); -- Zeroes everywhere...
begin
for I in 1 .. Size loop
Result (I, I) := One; -- Ones on the diagonal.
end loop;
return (Result);
end Identity_Matrix;
--==============================================--
function "*" (Left : Complex_Matrix_Type; Right : Complex_Matrix_Type)
return Complex_Matrix_Type is
subtype Rows is Positive range Left'Range(1);
subtype Columns is Positive range Right'Range(2);
Result : Complex_Matrix_Type(Rows, Columns);
begin
if Left'Length(2) /= Right'Length(1) then -- # columns of Left must
-- match # rows of Right.
raise Dimension_Mismatch;
else
for I in Rows loop
for J in Columns loop
Result(I, J) := Inner_Product (Left, Right, I, J);
end loop;
end loop;
return (Result);
end if;
end "*";
end CC70A01_0;
--==================================================================--
with Report;
with FC70A00; -- Generic complex integer operations.
with CC70A01_0; -- Generic complex matrix operations.
procedure CC70A01 is
type My_Integer is range -100 .. 100;
package My_Complex_Package is new FC70A00 (My_Integer);
package My_Matrix_Package is new CC70A01_0 (My_Complex_Package);
use My_Complex_Package, -- All user-defined
My_Matrix_Package; -- operators directly
-- visible.
subtype Matrix_2x2 is Complex_Matrix_Type (1 .. 2, 1 .. 2);
subtype Matrix_2x3 is Complex_Matrix_Type (1 .. 2, 1 .. 3);
function C (Real, Imag : My_Integer) return Complex_Type renames Complex;
begin -- Main program.
Report.Test ("CC70A01", "Check that the visible part of a generic " &
"formal package includes the first list of basic " &
"declarative items of the package specification. Check " &
"for a generic package where formal package has (<>) " &
"actual part");
declare
Identity_2x2 : Matrix_2x2 := Identity_Matrix (Size => 2);
Operand_2x3 : Matrix_2x3 := ( ( C(1, 2), C(3, 6), C(5, 1) ),
( C(0, 3), C(7, 9), C(3, 4) ) );
Result_2x3 : Matrix_2x3 := ( others => ( others => Zero ) );
begin
begin -- Block #1.
Result_2x3 := Identity_2x2 * Operand_2x3; -- Should return
-- Operand_2x3.
if (Result_2x3 /= Operand_2x3) then
Report.Failed ("Incorrect results from matrix multiplication");
end if;
exception
when others =>
Report.Failed ("Unexpected exception raised - Block #1");
end; -- Block #1.
begin -- Block #2.
Result_2x3 := Operand_2x3 * Identity_2x2; -- Can't multiply 2x3
-- by 2x2.
Report.Failed ("Exception Dimension_Mismatch not raised");
exception
when Dimension_Mismatch =>
null;
when others =>
Report.Failed ("Unexpected exception raised - Block #2");
end; -- Block #2.
end;
Report.Result;
end CC70A01;
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