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-- CB40A04.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 a predefined exception is correctly propagated out of a
--      public child function to a client. 
--
-- TEST DESCRIPTION:
--      Declare a public child subprogram.  Define the processing loop
--      inside the subprogram to expect a string with index starting at 1.
--      From the test procedure, call the child subprogram with a slice
--      from the middle of a string variable.  This will cause an exception
--      to be raised in the child and propagated to the caller.
--
--      Exception Type Raised:
--          User Defined
--        * Predefined  
--
--      Hierarchical Structure Employed For This Test:  
--        * Parent Package
--          Public Child Package
--          Private Child Package
--        * Public Child Subprogram
--          Private Child Subprogram
--
-- TEST FILES:
--      This test depends on the following foundation code:
--         FB40A00.A
--
--       
-- CHANGE HISTORY:
--      06 Dec 94   SAIC    ACVC 2.0
--
--!


-- Child subprogram Text_Parser.Count_AlphaNumerics 

function FB40A00.CB40A04_0 (Text : string) return Natural is
begin

   for I in 1 .. Text'Last loop          -- Raise immediate Constraint_Error 
      if (Text (I) in 'a'..'z') or       -- with String slice passed from
         (Text (I) in 'A'..'Z') or       -- caller. (Slice'first /= 1)
         (Text (I) in '0'..'9') then
         Increment_AlphaNumeric_Count;
      else
         Increment_Non_AlphaNumeric_Count;
      end if;
   end loop;

   return (AlphaNumeric_Count);          -- Global in parent package.

   -- No exception handler here, exception propagates.

end FB40A00.CB40A04_0;


     --=================================================================--


with FB40A00.CB40A04_0; -- Explicit "with" of Text_Parser.Count_AlphaNumerics
with Report;            -- Implicit "with" of Text_Parser.

procedure CB40A04 is

   String_Var : String (1..19) := "The quick brown fox";

   Number_Of_AlphaNumeric_Characters : Natural := 0;

begin

   Report.Test ("CB40A04", "Check that a predefined exception is " &
                           "correctly propagated out of a public " &
                           "child function to a client");

   Process_Block:
   begin

      Number_Of_AlphaNumeric_Characters :=       -- Provide slice of string
        FB40A00.CB40A04_0 (String_Var (5..10));  -- to subprogram.
                                                           
      Report.Failed ("Exception should have been handled");

   exception

      when Constraint_Error =>                      -- Correct exception 
         null;                                      -- propagation.

      when others =>
         Report.Failed ("Exception handled in an others handler");

   end Process_Block;

   Report.Result;

end CB40A04;

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