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jeremybenn |
-- CXB3012.A
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--
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-- Grant of Unlimited Rights
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--
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-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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-- unlimited rights in the software and documentation contained herein.
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-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
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-- this public release, the Government intends to confer upon all
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-- recipients unlimited rights equal to those held by the Government.
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-- These rights include rights to use, duplicate, release or disclose the
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-- released technical data and computer software in whole or in part, in
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-- any manner and for any purpose whatsoever, and to have or permit others
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-- to do so.
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--
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-- DISCLAIMER
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--
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-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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-- PARTICULAR PURPOSE OF SAID MATERIAL.
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--*
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--
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-- OBJECTIVE:
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-- Check that Procedure Update modifies the value pointed to by
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-- the chars_ptr parameter Item, starting at the position
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-- corresponding to parameter Offset, using the chars in
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-- char_array parameter Chars.
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--
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-- Check that the version of Procedure Update with a String parameter
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-- behaves in the manner described above, but with the character
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-- values in the String overwriting the char values in Item.
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--
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-- Check that both of the above versions of Procedure Update will
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-- propagate Update_Error if Check is True, and if the length of
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-- the new chars in Chars, when overlaid starting from position
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-- Offset, will overwrite the first nul in Item.
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--
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-- TEST DESCRIPTION:
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-- This test checks two versions of Procedure Update. In the first
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-- version of the procedure, the parameter Chars indicates a char_array
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-- argument. These char_array parameters are provided through the use
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-- of the To_C function (with String IN parameter), both with and
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-- without a terminating nul. In the case below where a terminating nul
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-- char is appended, the effect of "updating" the value pointed to by the
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-- Item parameter will include its shortening, due to the insertion of
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-- this additional nul in the middle of the char_array.
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--
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-- In the second version of Procedure Update evaluated here, the string
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-- parameter Str is used to modify the char_array pointed to by Item.
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--
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-- Finally, both versions of the procedure are evaluated to ensure that
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-- they propagate Update_Error and Dereference_Error under the proper
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-- conditions.
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--
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-- This test assumes that the following characters are all included
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-- in the implementation defined type Interfaces.C.char:
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-- ' ', 'a'..'z', 'A'..'Z', '0'..'9', '-' and '.'.
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--
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-- APPLICABILITY CRITERIA:
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-- This test is applicable to all implementations that provide
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-- package Interfaces.C.Strings. If an implementation provides
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-- package Interfaces.C.Strings, this test must compile, execute,
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-- and report "PASSED".
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--
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--
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-- CHANGE HISTORY:
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-- 05 Oct 95 SAIC Initial prerelease version.
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-- 13 May 96 SAIC Incorporated reviewer comments for ACVC 2.1.
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-- 26 Oct 96 SAIC Incorporated reviewer comments.
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-- 14 Sep 99 RLB Removed incorrect and unnecessary
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-- Unchecked_Conversion. Added check for raising
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-- of Dereference_Error for Update (From Technical
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-- Corrigendum 1).
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-- 07 Jan 05 RLB Modified to reflect change to Update by AI-242
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-- (which is expected to be part of Amendment 1).
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-- [This version allows either semantics.]
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--!
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with Report;
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with Ada.Exceptions;
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with Interfaces.C.Strings; -- N/A => ERROR
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procedure CXB3012 is
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begin
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Report.Test ("CXB3012", "Check that both versions of Procedure Update " &
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"produce correct results");
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Test_Block:
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declare
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package IC renames Interfaces.C;
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package ICS renames Interfaces.C.Strings;
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use Ada.Exceptions;
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use type IC.char;
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use type IC.char_array;
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use type IC.size_t;
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use type ICS.chars_ptr;
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TC_String_1 : String(1..1) := "J";
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TC_String_2 : String(1..2) := "Ab";
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TC_String_3 : String(1..3) := "xyz";
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TC_String_4 : String(1..4) := "ACVC";
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TC_String_5 : String(1..5) := "1a2b3";
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TC_String_6 : String(1..6) := "---...";
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TC_String_7 : String(1..7) := "AABBBAA";
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TC_String_8 : String(1..8) := "aBcDeFgH";
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TC_String_9 : String(1..9) := "JustATest";
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TC_String_10 : String(1..10) := "0123456789";
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TC_Result_String_1 : constant String := "JXXXXXXXXX";
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TC_Result_String_2 : constant String := "XXXXXXXXAb";
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TC_Result_String_3 : constant String := "XXXxyz";
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TC_Result_String_4 : constant String := "XACVC";
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TC_Result_String_5 : constant String := "1a2b3";
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TC_Result_String_6 : constant String := "XXX---...";
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TC_Amd_Result_String_4 :
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constant String := "XACVCXXXXX";
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TC_Amd_Result_String_5 :
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constant String := "1a2b3XXXXX";
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TC_Amd_Result_String_6 :
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constant String := "XXX---...X";
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TC_Amd_Result_String_9 :
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constant String := "JustATestX";
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TC_char_array : IC.char_array(0..10) := IC.To_C("XXXXXXXXXX");
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TC_Result_char_array : IC.char_array(0..10) := IC.To_C("XXXXXXXXXX");
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TC_chars_ptr : ICS.chars_ptr;
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TC_Length : IC.size_t;
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begin
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-- Check that Procedure Update modifies the value pointed to by
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-- the chars_ptr parameter Item, starting at the position
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-- corresponding to parameter Offset, using the chars in
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-- char_array parameter Chars.
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-- Note: If parameter Chars contains a nul char (such as a
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-- terminating nul), the result may be the overall shortening
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-- of parameter Item.
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TC_chars_ptr := ICS.New_Char_Array(TC_char_array);
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ICS.Update(Item => TC_chars_ptr,
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Offset => 0,
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Chars => IC.To_C(TC_String_1, False), -- No nul char.
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Check => True);
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if ICS.Value(TC_chars_ptr) /= TC_Result_String_1 then
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Report.Failed("Incorrect result from Procedure Update - 1");
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end if;
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ICS.Free(TC_chars_ptr);
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TC_chars_ptr := ICS.New_Char_Array(TC_char_array);
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ICS.Update(TC_chars_ptr,
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Offset => ICS.Strlen(TC_chars_ptr) - 2,
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Chars => IC.To_C(TC_String_2, False), -- No nul char.
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Check => True);
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if ICS.Value(TC_chars_ptr) /= TC_Result_String_2 then
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Report.Failed("Incorrect result from Procedure Update - 2");
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end if;
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ICS.Free(TC_chars_ptr);
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TC_chars_ptr := ICS.New_Char_Array(TC_char_array);
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ICS.Update(TC_chars_ptr,
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3,
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Chars => IC.To_C(TC_String_3), -- Nul appended, shortens
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Check => False); -- array.
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if ICS.Value(TC_chars_ptr) /= TC_Result_String_3 then
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Report.Failed("Incorrect result from Procedure Update - 3");
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end if;
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ICS.Free(TC_chars_ptr);
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TC_chars_ptr := ICS.New_Char_Array(TC_char_array);
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ICS.Update(TC_chars_ptr,
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0,
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IC.To_C(TC_String_10), -- Complete replacement of array.
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Check => False);
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if ICS.Value(TC_chars_ptr) /= TC_String_10 then
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Report.Failed("Incorrect result from Procedure Update - 4");
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end if;
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-- Perform a character-by-character comparison of the result of
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-- Procedure Update. Note that char_array lower bound is 0, and
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-- that the nul char is not compared with any character in the
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-- string (since the string is not nul terminated).
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begin
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TC_Length := ICS.Strlen(TC_chars_ptr);
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TC_Result_char_array(0..10) := ICS.Value(TC_chars_ptr);
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for i in 0..TC_Length-1 loop
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if TC_Result_char_array(i) /=
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IC.To_C(TC_String_10(Integer(i+1)))
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then
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Report.Failed("Incorrect result from the character-by-" &
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"character evaluation of the result of " &
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"Procedure Update");
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end if;
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end loop;
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exception
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when others =>
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Report.Failed("Exception raised during the character-by-" &
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"character evaluation of the result of " &
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"Procedure Update");
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end;
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ICS.Free(TC_chars_ptr);
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-- Check that the version of Procedure Update with a String rather
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-- than a char_array parameter behaves in the manner described above,
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-- but with the character values in the String overwriting the char
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-- values in Item.
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--
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-- Note: In Ada 95, In each of the cases below, the String parameter
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-- Str is treated as if it were nul terminated, which means that
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-- the char_array pointed to by TC_chars_ptr will be "shortened"
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-- so that it ends after the last character of the Str
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-- parameter. For Ada 2005, this rule is dropped, so the
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-- number of characters remains the same.
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TC_chars_ptr := ICS.New_Char_Array(TC_char_array);
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ICS.Update(TC_chars_ptr, 1, TC_String_4, False);
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if ICS.Value(TC_chars_ptr) = TC_Result_String_4 then
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Report.Comment("Ada 95 result from Procedure Update - 5");
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elsif ICS.Value(TC_chars_ptr) = TC_Amd_Result_String_4 then
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Report.Comment("Amendment 1 result from Procedure Update - 5");
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else
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Report.Failed("Incorrect result from Procedure Update - 5");
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end if;
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ICS.Free(TC_chars_ptr);
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TC_chars_ptr := ICS.New_Char_Array(TC_char_array);
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ICS.Update(Item => TC_chars_ptr,
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Offset => 0,
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Str => TC_String_5);
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if ICS.Value(TC_chars_ptr) = TC_Result_String_5 then
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Report.Comment("Ada 95 result from Procedure Update - 6");
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elsif ICS.Value(TC_chars_ptr) = TC_Amd_Result_String_5 then
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Report.Comment("Amendment 1 result from Procedure Update - 6");
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else
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Report.Failed("Incorrect result from Procedure Update - 6");
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end if;
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ICS.Free(TC_chars_ptr);
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TC_chars_ptr := ICS.New_Char_Array(TC_char_array);
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ICS.Update(TC_chars_ptr,
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3,
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Str => TC_String_6,
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Check => True);
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if ICS.Value(TC_chars_ptr) = TC_Result_String_6 then
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Report.Comment("Ada 95 result from Procedure Update - 7");
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elsif ICS.Value(TC_chars_ptr) = TC_Amd_Result_String_6 then
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Report.Comment("Amendment 1 result from Procedure Update - 7");
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else
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Report.Failed("Incorrect result from Procedure Update - 7");
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end if;
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ICS.Free(TC_chars_ptr);
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TC_chars_ptr := ICS.New_Char_Array(TC_char_array);
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ICS.Update(TC_chars_ptr, 0, TC_String_9, True);
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if ICS.Value(TC_chars_ptr) = TC_String_9 then
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Report.Comment("Ada 95 result from Procedure Update - 8");
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elsif ICS.Value(TC_chars_ptr) = TC_Amd_Result_String_9 then
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Report.Comment("Amendment 1 result from Procedure Update - 8");
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else
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Report.Failed("Incorrect result from Procedure Update - 8");
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end if;
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ICS.Free(TC_chars_ptr);
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-- Check what happens if the string and array are the same size (this
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-- is the case that caused the change made by the Amendment).
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begin
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TC_chars_ptr := ICS.New_Char_Array(TC_char_array);
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ICS.Update(Item => TC_chars_ptr,
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Offset => 0,
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Str => TC_String_10,
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Check => True);
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if ICS.Value(TC_chars_ptr) = TC_String_10 then
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Report.Comment("Amendment 1 result from Procedure Update - 9");
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else
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Report.Failed("Incorrect result from Procedure Update - 9");
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end if;
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exception
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when ICS.Update_Error =>
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Report.Comment("Ada 95 exception expected from Procedure Update - 9");
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when others =>
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Report.Failed("Incorrect exception raised by Procedure Update " &
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"with Str parameter - 9");
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end;
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ICS.Free(TC_chars_ptr);
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-- Check that both of the above versions of Procedure Update will
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-- propagate Update_Error if Check is True, and if the length of
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-- the new chars in Chars, when overlaid starting from position
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-- Offset, will overwrite the first nul in Item.
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begin
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TC_chars_ptr := ICS.New_Char_Array(TC_char_array);
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ICS.Update(Item => TC_chars_ptr,
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Offset => 5,
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Chars => IC.To_C(TC_String_7),
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Check => True);
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Report.Failed("Update_Error not raised by Procedure Update with " &
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"Chars parameter");
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Report.Comment(ICS.Value(TC_chars_ptr) & "used here to defeat " &
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"optimization - should never be printed");
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exception
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when ICS.Update_Error => null; -- OK, expected exception.
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when others =>
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Report.Failed("Incorrect exception raised by Procedure Update " &
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"with Chars parameter");
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end;
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ICS.Free(TC_chars_ptr);
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begin
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|
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TC_chars_ptr := ICS.New_Char_Array(TC_char_array);
|
337 |
|
|
ICS.Update(Item => TC_chars_ptr,
|
338 |
|
|
Offset => ICS.Strlen(TC_chars_ptr),
|
339 |
|
|
Str => TC_String_8); -- Default Check parameter value.
|
340 |
|
|
Report.Failed("Update_Error not raised by Procedure Update with " &
|
341 |
|
|
"Str parameter");
|
342 |
|
|
Report.Comment(ICS.Value(TC_chars_ptr) & "used here to defeat " &
|
343 |
|
|
"optimization - should never be printed");
|
344 |
|
|
exception
|
345 |
|
|
when ICS.Update_Error => null; -- OK, expected exception.
|
346 |
|
|
when others =>
|
347 |
|
|
Report.Failed("Incorrect exception raised by Procedure Update " &
|
348 |
|
|
"with Str parameter");
|
349 |
|
|
end;
|
350 |
|
|
|
351 |
|
|
ICS.Free(TC_chars_ptr);
|
352 |
|
|
|
353 |
|
|
-- Check that both of the above versions of Procedure Update will
|
354 |
|
|
-- propagate Dereference_Error if Item is Null_Ptr.
|
355 |
|
|
-- Note: Free sets TC_chars_ptr to Null_Ptr.
|
356 |
|
|
|
357 |
|
|
begin
|
358 |
|
|
ICS.Update(Item => TC_chars_ptr,
|
359 |
|
|
Offset => 5,
|
360 |
|
|
Chars => IC.To_C(TC_String_7),
|
361 |
|
|
Check => True);
|
362 |
|
|
Report.Failed("Dereference_Error not raised by Procedure Update with " &
|
363 |
|
|
"Chars parameter");
|
364 |
|
|
exception
|
365 |
|
|
when ICS.Dereference_Error => null; -- OK, expected exception.
|
366 |
|
|
when others =>
|
367 |
|
|
Report.Failed("Incorrect exception raised by Procedure Update " &
|
368 |
|
|
"with Chars parameter");
|
369 |
|
|
end;
|
370 |
|
|
|
371 |
|
|
begin
|
372 |
|
|
ICS.Update(Item => TC_chars_ptr,
|
373 |
|
|
Offset => ICS.Strlen(TC_chars_ptr),
|
374 |
|
|
Str => TC_String_8); -- Default Check parameter value.
|
375 |
|
|
Report.Failed("Dereference_Error not raised by Procedure Update with " &
|
376 |
|
|
"Str parameter");
|
377 |
|
|
exception
|
378 |
|
|
when ICS.Dereference_Error => null; -- OK, expected exception.
|
379 |
|
|
when others =>
|
380 |
|
|
Report.Failed("Incorrect exception raised by Procedure Update " &
|
381 |
|
|
"with Str parameter");
|
382 |
|
|
end;
|
383 |
|
|
|
384 |
|
|
exception
|
385 |
|
|
when The_Error : others =>
|
386 |
|
|
Report.Failed ("The following exception was raised in the " &
|
387 |
|
|
"Test_Block: " & Exception_Name(The_Error));
|
388 |
|
|
end Test_Block;
|
389 |
|
|
|
390 |
|
|
Report.Result;
|
391 |
|
|
|
392 |
|
|
end CXB3012;
|