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1 -- C41105A.ADA
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2
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3 -- Grant of Unlimited Rights
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4 --
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5 -- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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6 -- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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7 -- unlimited rights in the software and documentation contained herein.
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8 -- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
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9 -- this public release, the Government intends to confer upon all
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10 -- recipients unlimited rights equal to those held by the Government.
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11 -- These rights include rights to use, duplicate, release or disclose the
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12 -- released technical data and computer software in whole or in part, in
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13 -- any manner and for any purpose whatsoever, and to have or permit others
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14 -- to do so.
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15 --
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16 -- DISCLAIMER
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17 --
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18 -- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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19 -- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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20 -- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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21 -- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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22 -- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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23 -- PARTICULAR PURPOSE OF SAID MATERIAL.
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24 --*
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25 -- OBJECTIVE:
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26 -- CHECK THAT CONSTRAINT_ERROR IS RAISED IF THE NAME PART OF AN
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27 -- INDEXED COMPONENT DENOTES AN ACCESS OBJECT WHOSE VALUE IS NULL,
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28 -- AND ALSO IF THE NAME IS A FUNCTION CALL DELIVERING NULL.
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29
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30 -- HISTORY:
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31 -- WKB 07/29/81 CREATED ORIGINAL TEST.
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32 -- SPS 10/26/82
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33 -- JET 01/05/88 UPDATED HEADER FORMAT AND ADDED CODE TO PREVENT
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34 -- OPTIMIZATION.
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35
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36 WITH REPORT;
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37 USE REPORT;
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38 PROCEDURE C41105A IS
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39
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40 BEGIN
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41 TEST ("C41105A", "CONSTRAINT_ERROR FROM NAMES DENOTING A NULL " &
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42 "ACCESS OBJECT AND A FUNCTION CALL DELIVERING " &
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43 "NULL");
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44
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45 DECLARE
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46
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47 TYPE T1 IS ARRAY (1..2) OF INTEGER;
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48 TYPE A1 IS ACCESS T1;
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49 B : A1 := NEW T1' (1,2);
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50 I : INTEGER;
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51
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52 BEGIN
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53
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54 IF EQUAL (3,3) THEN
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55 B := NULL;
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56 END IF;
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57
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58 I := B(1);
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59 FAILED ("CONSTRAINT_ERROR NOT RAISED - 1");
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60
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61 IF EQUAL (I,I) THEN
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62 COMMENT ("NO EXCEPTION RAISED");
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63 END IF;
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64
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65 EXCEPTION
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66
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67 WHEN CONSTRAINT_ERROR => NULL;
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68 WHEN OTHERS => FAILED ("WRONG EXCEPTION - 1");
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69
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70 END;
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71
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72
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73 DECLARE
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74
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75 TYPE T2 IS ARRAY (1..2) OF INTEGER;
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76 TYPE A2 IS ACCESS T2;
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77 I : INTEGER;
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78
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79 FUNCTION F RETURN A2 IS
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80 BEGIN
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81 IF EQUAL (3,3) THEN
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82 RETURN NULL;
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83 END IF;
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84 RETURN NEW T2' (1,2);
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85 END F;
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86
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87 BEGIN
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88
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89 I := F(1);
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90 FAILED ("CONSTRAINT_ERROR NOT RAISED - 2");
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91
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92 IF EQUAL (I,I) THEN
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93 COMMENT ("NO EXCEPTION RAISED");
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94 END IF;
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95
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96 EXCEPTION
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97
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98 WHEN CONSTRAINT_ERROR => NULL;
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99 WHEN OTHERS => FAILED ("WRONG EXCEPTION - 2");
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100
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101 END;
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102
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103 RESULT;
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104 END C41105A;
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