-- C3A0010.A
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-- C3A0010.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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-- OBJECTIVE:
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-- OBJECTIVE:
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-- Check that an access-to-subprogram type in a generic instance may be
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-- Check that an access-to-subprogram type in a generic instance may be
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-- used to declare access-to-subprogram objects which invoke subprograms
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-- used to declare access-to-subprogram objects which invoke subprograms
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-- in the instance.
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-- in the instance.
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--
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--
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-- TEST DESCRIPTION:
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-- TEST DESCRIPTION:
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-- Declare a numeric type in the visible part of a generic package.
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-- Declare a numeric type in the visible part of a generic package.
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-- Declare two different math procedures that can be referred to by
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-- Declare two different math procedures that can be referred to by
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-- the access to procedure type.
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-- the access to procedure type.
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--
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--
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-- In the main program, instantiate the generic. Declare an access
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-- In the main program, instantiate the generic. Declare an access
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-- to procedure type. Call each procedure indirectly by dereferencing
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-- to procedure type. Call each procedure indirectly by dereferencing
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-- the access value.
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-- the access value.
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--
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--
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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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-- 05 APR 96 SAIC Header correction for 2.1
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-- 05 APR 96 SAIC Header correction for 2.1
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--
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--
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--!
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--!
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generic
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generic
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type Real_Num is digits <>;
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type Real_Num is digits <>;
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package C3A0010_0 is
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package C3A0010_0 is
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-- Type accesses to any math procedure
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-- Type accesses to any math procedure
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type Math_Procedure_Ptr is access procedure
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type Math_Procedure_Ptr is access procedure
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(First_Num, Second_Num : in Real_Num;
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(First_Num, Second_Num : in Real_Num;
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Result_Num : out Real_Num);
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Result_Num : out Real_Num);
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procedure Add (First_Num, Second_Num : in Real_Num;
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procedure Add (First_Num, Second_Num : in Real_Num;
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Result_Num : out Real_Num);
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Result_Num : out Real_Num);
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procedure Subtract (First_Num, Second_Num : in Real_Num;
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procedure Subtract (First_Num, Second_Num : in Real_Num;
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Result_Num : out Real_Num);
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Result_Num : out Real_Num);
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end C3A0010_0;
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end C3A0010_0;
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-----------------------------------------------------------------------------
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-----------------------------------------------------------------------------
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package body C3A0010_0 is
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package body C3A0010_0 is
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procedure Add (First_Num, Second_Num : in Real_Num;
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procedure Add (First_Num, Second_Num : in Real_Num;
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Result_Num : out Real_Num) is
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Result_Num : out Real_Num) is
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begin
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begin
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Result_Num := First_Num + Second_Num;
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Result_Num := First_Num + Second_Num;
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end Add;
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end Add;
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procedure Subtract (First_Num, Second_Num : in Real_Num;
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procedure Subtract (First_Num, Second_Num : in Real_Num;
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Result_Num : out Real_Num) is
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Result_Num : out Real_Num) is
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begin
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begin
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Result_Num := First_Num - Second_Num;
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Result_Num := First_Num - Second_Num;
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end Subtract;
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end Subtract;
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end C3A0010_0;
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end C3A0010_0;
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-----------------------------------------------------------------------------
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-----------------------------------------------------------------------------
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with Report;
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with Report;
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with C3A0010_0;
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with C3A0010_0;
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procedure C3A0010 is
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procedure C3A0010 is
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type Real is digits 2;
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type Real is digits 2;
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subtype Math_Float is Real range -10.0 .. 10.0;
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subtype Math_Float is Real range -10.0 .. 10.0;
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package Math_Pk is new C3A0010_0 (Real_Num => Math_Float);
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package Math_Pk is new C3A0010_0 (Real_Num => Math_Float);
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Math_Access : Math_Pk.Math_Procedure_Ptr;
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Math_Access : Math_Pk.Math_Procedure_Ptr;
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Total_Num : Math_Float := 0.0;
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Total_Num : Math_Float := 0.0;
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First_Num : Math_Float := 1.0;
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First_Num : Math_Float := 1.0;
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Second_Num : Math_Float := 2.0;
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Second_Num : Math_Float := 2.0;
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procedure Max( A_Num, B_Num: in Math_Float; Result : out Math_Float ) is
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procedure Max( A_Num, B_Num: in Math_Float; Result : out Math_Float ) is
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begin
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begin
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if A_Num > B_Num then
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if A_Num > B_Num then
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Result := A_Num;
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Result := A_Num;
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else
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else
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Result := B_Num;
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Result := B_Num;
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end if;
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end if;
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end Max;
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end Max;
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procedure Due_Process( Process: Math_Pk.Math_Procedure_Ptr ) is
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procedure Due_Process( Process: Math_Pk.Math_Procedure_Ptr ) is
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begin
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begin
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Process(First_Num, Second_Num, Total_Num);
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Process(First_Num, Second_Num, Total_Num);
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end Due_Process;
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end Due_Process;
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begin
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begin
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Report.Test ("C3A0010", "Check that an access-to-subprogram type in a "
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Report.Test ("C3A0010", "Check that an access-to-subprogram type in a "
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& "generic instance may be used to declare "
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& "generic instance may be used to declare "
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& "access-to-subprogram objects which invoke "
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& "access-to-subprogram objects which invoke "
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& "subprograms in the instance");
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& "subprograms in the instance");
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-- Check for correct defaulting
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-- Check for correct defaulting
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if Math_Pk."/="( Math_Access, null) then
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if Math_Pk."/="( Math_Access, null) then
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Report.Failed("subprogram access type object not initialized to null");
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Report.Failed("subprogram access type object not initialized to null");
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end if;
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end if;
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Math_Access := Math_Pk.Add'Access;
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Math_Access := Math_Pk.Add'Access;
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-- Invoking Add procedure designated by access value
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-- Invoking Add procedure designated by access value
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Due_Process( Math_Access );
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Due_Process( Math_Access );
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If Total_Num /= 3.0 then
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If Total_Num /= 3.0 then
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Report.Failed ("Incorrect Add result");
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Report.Failed ("Incorrect Add result");
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end if;
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end if;
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Math_Access := Math_Pk.Subtract'Access;
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Math_Access := Math_Pk.Subtract'Access;
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Due_Process( Math_Access );
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Due_Process( Math_Access );
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If Total_Num /= -1.0 then
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If Total_Num /= -1.0 then
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Report.Failed ("Incorrect Subtract result");
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Report.Failed ("Incorrect Subtract result");
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end if;
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end if;
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Math_Access := Max'Access;
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Math_Access := Max'Access;
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Due_Process( Math_Access );
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Due_Process( Math_Access );
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If Total_Num /= 2.0 then
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If Total_Num /= 2.0 then
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Report.Failed ("Incorrect Max result");
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Report.Failed ("Incorrect Max result");
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end if;
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end if;
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Report.Result;
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Report.Result;
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end C3A0010;
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end C3A0010;
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