gcc/testsuite/ada/acats/tests/c3/c38002b.ada

   1 -- C38002B.ADA
   2
   3 --                             Grant of Unlimited Rights
   4 --
   5 --     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
   6 --     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
   7 --     unlimited rights in the software and documentation contained herein.
   8 --     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making
   9 --     this public release, the Government intends to confer upon all
  10 --     recipients unlimited rights  equal to those held by the Government.
  11 --     These rights include rights to use, duplicate, release or disclose the
  12 --     released technical data and computer software in whole or in part, in
  13 --     any manner and for any purpose whatsoever, and to have or permit others
  14 --     to do so.
  15 --
  16 --                                    DISCLAIMER
  17 --
  18 --     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
  19 --     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
  20 --     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
  21 --     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
  22 --     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
  23 --     PARTICULAR PURPOSE OF SAID MATERIAL.
  24 --*
  25 -- OBJECTIVE:
  26 --     CHECK THAT AN UNCONSTRAINED ARRAY TYPE OR A RECORD WITHOUT
  27 --     DEFAULT DISCRIMINANTS CAN BE USED IN AN ACCESS_TYPE_DEFINITION
  28 --     WITHOUT AN INDEX OR DISCRIMINANT CONSTRAINT.
  29 --
  30 --     CHECK THAT (NON-STATIC) INDEX OR DISCRIMINANT CONSTRAINTS CAN
  31 --     SUBSEQUENTLY BE IMPOSED WHEN THE TYPE IS USED IN AN OBJECT
  32 --     DECLARATION, ARRAY COMPONENT DECLARATION, RECORD COMPONENT
  33 --     DECLARATION, ACCESS TYPE DECLARATION, PARAMETER DECLARATION,
  34 --     ALLOCATOR, DERIVED TYPE DEFINITION, PRIVATE TYPE, OR AS THE
  35 --     RETURN TYPE IN A FUNCTION DECLARATION.
  36 --
  37 --     CHECK FOR GENERIC FORMAL ACCESS TYPES.
  38
  39 -- HISTORY:
  40 --     AH  09/02/86 CREATED ORIGINAL TEST.
  41 --     DHH 08/22/88 REVISED HEADER, ADDED 'PRIVATE TYPE' TO COMMENTS
  42 --                  AND CORRECTED INDENTATION.
  43
  44 WITH REPORT; USE REPORT;
  45 PROCEDURE C38002B IS
  46
  47      C3 : CONSTANT INTEGER := IDENT_INT(3);
  48
  49      TYPE UNCON_ARR IS ARRAY (INTEGER RANGE <>) OF INTEGER;
  50      TYPE REC (DISC : INTEGER) IS
  51           RECORD
  52                NULL;
  53           END RECORD;
  54
  55      TYPE P_ARR_NAME IS ACCESS UNCON_ARR;
  56      TYPE P_REC_NAME IS ACCESS REC;
  57
  58      GENERIC
  59           TYPE ACC_REC IS ACCESS REC;
  60           TYPE ACC_ARR IS ACCESS UNCON_ARR;
  61      PACKAGE P IS
  62           OBJ : ACC_REC(C3);
  63
  64           TYPE ARR2 IS ARRAY (1..10) OF ACC_REC(C3);
  65
  66           TYPE REC1 IS
  67                RECORD
  68                     COMP1 : ACC_REC(C3);
  69                END RECORD;
  70
  71           TYPE REC2 IS
  72                RECORD
  73                     COMP2 : ACC_ARR(1..C3);
  74                END RECORD;
  75
  76           SUBTYPE ACC_REC_3 IS ACC_REC(C3);
  77           R : ACC_REC;
  78
  79           FUNCTION F (PARM : ACC_REC_3) RETURN ACC_REC_3;
  80
  81           TYPE ACC1 IS PRIVATE;
  82           TYPE ACC2 IS PRIVATE;
  83           TYPE DER1 IS PRIVATE;
  84           TYPE DER2 IS PRIVATE;
  85
  86      PRIVATE
  87
  88           TYPE ACC1 IS ACCESS ACC_REC(C3);
  89           TYPE ACC2 IS ACCESS ACC_ARR(1..C3);
  90           TYPE DER1 IS NEW ACC_REC(C3);
  91           TYPE DER2 IS NEW ACC_ARR(1..C3);
  92      END P;
  93
  94      PACKAGE BODY P IS
  95           FUNCTION F (PARM : ACC_REC_3) RETURN ACC_REC_3 IS
  96           BEGIN
  97                RETURN PARM;
  98           END;
  99      END P;
 100
 101      PACKAGE NP IS NEW P (ACC_REC => P_REC_NAME, ACC_ARR => P_ARR_NAME);
 102
 103      USE NP;
 104 BEGIN
 105      TEST ("C38002B", "NON-STATIC CONSTRAINTS CAN BE IMPOSED " &
 106            "ON ACCESS TYPES ACCESSING PREVIOUSLY UNCONSTRAINED " &
 107            "ARRAY OR RECORD TYPES");
 108
 109      R := NEW REC(DISC => 3);
 110      R := F(R);
 111      R := NEW REC(DISC => 4);
 112      R := F(R);
 113      FAILED ("INCOMPATIBLE CONSTRAINT ON ACCESS VALUE ACCEPTED " &
 114              "BY GENERIC FUNCTION");
 115      EXCEPTION
 116           WHEN CONSTRAINT_ERROR =>
 117                IF R = NULL OR ELSE R.DISC /= 4 THEN
 118                     FAILED (" ERROR IN EVALUATION/ASSIGNMENT OF " &
 119                             "GENERIC ACCESS VALUE");
 120                END IF;
 121
 122      RESULT;
 123 END C38002B;