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+-- C54A42A.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.
+--*
+-- CHECK THAT A CASE_STATEMENT MAY HANDLE A LARGE NUMBER OF
+-- POTENTIAL VALUES GROUPED INTO A SMALL NUMBER OF ALTERNATIVES
+-- AND THAT EACH TIME THE APPROPRIATE ALTERNATIVE IS EXECUTED.
+
+-- (OPTIMIZATION TEST.)
+
+
+-- RM 03/24/81
+-- PWN 11/30/94 SUBTYPE QUALIFIED LITERALS FOR ADA 9X.
+
+
+WITH REPORT;
+PROCEDURE C54A42A IS
+
+ USE REPORT ;
+
+BEGIN
+
+ TEST( "C54A42A" , "TEST THAT A CASE_STATEMENT HANDLES CORRECTLY" &
+ " A LARGE NUMBER OF POTENTIAL VALUES GROUPED" &
+ " INTO A SMALL NUMBER OF ALTERNATIVES" );
+
+ DECLARE
+
+ STATCON : CONSTANT CHARACTER := 'B' ;
+ STATVAR : CHARACTER := 'Q' ;
+ DYNCON : CONSTANT CHARACTER := IDENT_CHAR( 'Y' );
+ DYNVAR : CHARACTER := IDENT_CHAR( 'Z' );
+
+ BEGIN
+
+ CASE CHARACTER'('A') IS
+ WHEN ASCII.NUL .. 'A' => NULL ;
+ WHEN 'B' => FAILED( "WRONG ALTERN. A2" );
+ WHEN 'P' => FAILED( "WRONG ALTERN. A3" );
+ WHEN 'Y' => FAILED( "WRONG ALTERN. A4" );
+ WHEN 'Z' .. ASCII.DEL => FAILED( "WRONG ALTERN. A5" );
+ WHEN OTHERS => FAILED( "WRONG ALTERN. A6" );
+ END CASE;
+
+ CASE STATCON IS
+ WHEN ASCII.NUL .. 'A' => FAILED( "WRONG ALTERN. B1" );
+ WHEN 'B' => NULL ;
+ WHEN 'P' => FAILED( "WRONG ALTERN. B3" );
+ WHEN 'Y' => FAILED( "WRONG ALTERN. B4" );
+ WHEN 'Z' .. ASCII.DEL => FAILED( "WRONG ALTERN. B5" );
+ WHEN OTHERS => FAILED( "WRONG ALTERN. B6" );
+ END CASE;
+
+ CASE STATVAR IS
+ WHEN ASCII.NUL .. 'A' => FAILED( "WRONG ALTERN. C1" );
+ WHEN 'B' => FAILED( "WRONG ALTERN. C2" );
+ WHEN 'P' => FAILED( "WRONG ALTERN. C3" );
+ WHEN 'Y' => FAILED( "WRONG ALTERN. C4" );
+ WHEN 'Z' .. ASCII.DEL => FAILED( "WRONG ALTERN. C5" );
+ WHEN OTHERS => NULL ;
+ END CASE;
+
+ CASE DYNCON IS
+ WHEN ASCII.NUL .. 'A' => FAILED( "WRONG ALTERN. D1" );
+ WHEN 'B' => FAILED( "WRONG ALTERN. D2" );
+ WHEN 'P' => FAILED( "WRONG ALTERN. D3" );
+ WHEN 'Y' => NULL ;
+ WHEN 'Z' .. ASCII.DEL => FAILED( "WRONG ALTERN. D5" );
+ WHEN OTHERS => FAILED( "WRONG ALTERN. D6" );
+ END CASE;
+
+ CASE DYNVAR IS
+ WHEN ASCII.NUL .. 'A' => FAILED( "WRONG ALTERN. E1" );
+ WHEN 'B' => FAILED( "WRONG ALTERN. E2" );
+ WHEN 'P' => FAILED( "WRONG ALTERN. E3" );
+ WHEN 'Y' => FAILED( "WRONG ALTERN. E4" );
+ WHEN 'Z' .. ASCII.DEL => NULL ;
+ WHEN OTHERS => FAILED( "WRONG ALTERN. E6" );
+ END CASE;
+
+ END ;
+
+
+ DECLARE
+
+ NUMBER : CONSTANT := -100 ;
+ LITEXPR : CONSTANT := 0 * NUMBER + 16 ;
+ STATCON : CONSTANT INTEGER := +100 ;
+ DYNVAR : INTEGER := IDENT_INT( 102 ) ;
+ DYNCON : CONSTANT INTEGER := IDENT_INT( 17 ) ;
+
+ BEGIN
+
+ CASE INTEGER'(-102) IS
+ WHEN INTEGER'FIRST..-101 => NULL ;
+ WHEN -100 => FAILED("WRONG ALTERN. F2");
+ WHEN 17 => FAILED("WRONG ALTERN. F2");
+ WHEN 100 => FAILED("WRONG ALTERN. F4");
+ WHEN 101..INTEGER'LAST => FAILED("WRONG ALTERN. F5");
+ WHEN OTHERS => FAILED("WRONG ALTERN. F6");
+ END CASE;
+
+ CASE IDENT_INT(NUMBER) IS
+ WHEN INTEGER'FIRST..-101 => FAILED("WRONG ALTERN. G1");
+ WHEN -100 => NULL ;
+ WHEN 17 => FAILED("WRONG ALTERN. G3");
+ WHEN 100 => FAILED("WRONG ALTERN. G4");
+ WHEN 101..INTEGER'LAST => FAILED("WRONG ALTERN. G5");
+ WHEN OTHERS => FAILED("WRONG ALTERN. G6");
+ END CASE;
+
+ CASE IDENT_INT(LITEXPR) IS
+ WHEN INTEGER'FIRST..-101 => FAILED("WRONG ALTERN. H1");
+ WHEN -100 => FAILED("WRONG ALTERN. H2");
+ WHEN 17 => FAILED("WRONG ALTERN. H3");
+ WHEN 100 => FAILED("WRONG ALTERN. H4");
+ WHEN 101..INTEGER'LAST => FAILED("WRONG ALTERN. H5");
+ WHEN OTHERS => NULL ;
+ END CASE;
+
+ CASE STATCON IS
+ WHEN INTEGER'FIRST..-101 => FAILED("WRONG ALTERN. I1");
+ WHEN -100 => FAILED("WRONG ALTERN. I2");
+ WHEN 17 => FAILED("WRONG ALTERN. I3");
+ WHEN 100 => NULL ;
+ WHEN 101..INTEGER'LAST => FAILED("WRONG ALTERN. I5");
+ WHEN OTHERS => FAILED("WRONG ALTERN. I6");
+ END CASE;
+
+ CASE DYNVAR IS
+ WHEN INTEGER'FIRST..-101 => FAILED("WRONG ALTERN. J1");
+ WHEN -100 => FAILED("WRONG ALTERN. J2");
+ WHEN 17 => FAILED("WRONG ALTERN. J3");
+ WHEN 100 => FAILED("WRONG ALTERN. J4");
+ WHEN 101..INTEGER'LAST => NULL ;
+ WHEN OTHERS => FAILED("WRONG ALTERN. J6");
+ END CASE;
+
+ CASE DYNCON IS
+ WHEN INTEGER'FIRST..-101 => FAILED("WRONG ALTERN. K1");
+ WHEN -100 => FAILED("WRONG ALTERN. K2");
+ WHEN 17 => NULL ;
+ WHEN 100 => FAILED("WRONG ALTERN. K4");
+ WHEN 101..INTEGER'LAST => FAILED("WRONG ALTERN. K5");
+ WHEN OTHERS => FAILED("WRONG ALTERN. K6");
+ END CASE;
+ END ;
+
+
+ RESULT ;
+
+
+END C54A42A ;