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-- CE3904A.ADA

--                             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 LAST NONBLANK CHARACTER IN A FILE MAY BE READ BY

--     'GET' IN ENUMERATION_IO WITHOUT RAISING END_ERROR, AND THAT AFTER

--     THE LAST CHARACTER OF THE FILE HAS BEEN READ, ANY ATTEMPT TO READ

--     FURTHER CHARACTERS WILL RAISE END_ERROR.

-- HISTORY:

--     JET 08/19/88  CREATED ORIGINAL TEST.

WITH REPORT, TEXT_IO;  USE REPORT, TEXT_IO;

PROCEDURE CE3904A IS

     TYPE ENUM IS (THE, QUICK, BROWN, X);

     E : ENUM;

     PACKAGE EIO IS NEW ENUMERATION_IO(ENUM);

     USE EIO;

     F : FILE_TYPE;

     FILE_OK : BOOLEAN := FALSE;

BEGIN

     TEST ("CE3904A", "CHECK THAT THE LAST NONBLANK CHARACTER IN A " &

                      "FILE MAY BE READ BY 'GET' IN ENUMERATION_IO " &

                      "WITHOUT RAISING END_ERROR, AND THAT AFTER THE " &

                      "LAST CHARACTER OF THE FILE HAS BEEN READ, ANY " &

                      "ATTEMPT TO READ FURTHER CHARACTERS WILL RAISE " &

                      "END_ERROR");

     BEGIN

          CREATE(F, OUT_FILE, LEGAL_FILE_NAME);

          FILE_OK := TRUE;

     EXCEPTION

          WHEN OTHERS =>

               NOT_APPLICABLE("DATA FILE COULD NOT BE OPENED FOR " &

                              "WRITING");

     END;

     IF FILE_OK THEN

          BEGIN

               PUT(F, THE); NEW_LINE(F);

               PUT(F, QUICK); NEW_LINE(F);

               PUT(F, BROWN); NEW_LINE(F);

               PUT(F, X); NEW_LINE(F);

               CLOSE(F);

          EXCEPTION

               WHEN OTHERS =>

                    NOT_APPLICABLE("DATA FILE COULD NOT BE WRITTEN");

                    FILE_OK := FALSE;

          END;

     END IF;

     IF FILE_OK THEN

          BEGIN

               OPEN(F, IN_FILE, LEGAL_FILE_NAME);

               FOR I IN 0..3 LOOP

                    GET(F, E);

                    IF E /= ENUM'VAL(I) THEN

                         FAILED("INCORRECT VALUE READ -" &

                                INTEGER'IMAGE(I));

                    END IF;

               END LOOP;

          EXCEPTION

               WHEN OTHERS =>

                    FAILED("UNEXPECTED EXCEPTION RAISED BEFORE END " &

                           "OF FILE");

                    FILE_OK := FALSE;

          END;

     END IF;

     IF FILE_OK THEN

          BEGIN

               GET(F, E);

               FAILED("NO EXCEPTION RAISED AFTER END OF FILE");

          EXCEPTION

               WHEN END_ERROR =>

                    NULL;

               WHEN OTHERS =>

                    FAILED("INCORRECT EXCEPTION RAISED AFTER END OF " &

                           "FILE");

          END;

          BEGIN

               DELETE(F);

          EXCEPTION

               WHEN OTHERS =>

                    COMMENT("DATA FILE COULD NOT BE DELETED");

          END;

     END IF;

     RESULT;

END CE3904A;