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|
-- CXB3009.A
--
-- 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 function To_Chars_Ptr will return a Null_Ptr value
-- when the parameter Item is null. If the parameter Item is not null,
-- and references a chars_array object that does contain the char nul,
-- and parameter Nul_Check is True, check that To_Chars_Ptr performs a
-- pointer conversion from char_array_access type to chars_ptr type.
-- Check that if parameter Item is not null, and references a
-- chars_array object that does not contain nul, and parameter Nul_Check
-- is True, the To_Chars_Ptr function will propagate Terminator_Error.
-- Check that if parameter Item is not null, and parameter Nul_Check
-- is False, check that To_Chars_Ptr performs a pointer conversion from
-- char_array_access type to chars_ptr type.
--
-- Check that the New_Char_Array function will return a chars_ptr type
-- pointer to an allocated object that has been initialized with
-- the value of parameter Chars.
--
-- Check that the function New_String returns a chars_ptr initialized
-- to a nul-terminated string having the value of the Str parameter.
--
-- TEST DESCRIPTION:
-- This test uses a variety of of string, char_array,
-- char_array_access and char_ptr values in order to validate the
-- functions under test, and results are compared for both length
-- and content.
--
-- This test assumes that the following characters are all included
-- in the implementation defined type Interfaces.C.char:
-- ' ', 'a'..'z', and 'A'.. 'Z'.
--
-- APPLICABILITY CRITERIA:
-- This test is applicable to all implementations that provide
-- package Interfaces.C.Strings. If an implementation provides
-- package Interfaces.C.Strings, this test must compile, execute, and
-- report "PASSED".
--
--
-- CHANGE HISTORY:
-- 20 Sep 95 SAIC Initial prerelease version.
-- 09 May 96 SAIC Incorporated reviewer comments for ACVC 2.1.
-- 01 DEC 97 EDS Remove incorrect block of code (previously
-- lines 264-287)
-- 14 Sep 99 RLB Added check for behavior of To_Chars_Ptr when
-- Nul_Check => False. (From Technical
-- Corrigendum 1).
--!
with Report;
with Interfaces.C.Strings; -- N/A => ERROR
with Ada.Characters.Latin_1;
with Ada.Exceptions;
with Ada.Strings.Fixed;
procedure CXB3009 is
begin
Report.Test ("CXB3009", "Check that functions To_Chars_Ptr, " &
"New_Chars_Array, and New_String produce " &
"correct results");
Test_Block:
declare
package IC renames Interfaces.C;
package ICS renames Interfaces.C.Strings;
use Ada.Exceptions;
use type IC.char_array;
use type IC.size_t;
use type ICS.chars_ptr;
Null_Char_Array_Access : constant ICS.char_array_access := null;
Test_String : constant String := "Test String";
String_With_nul : String(1..6) := "Addnul";
String_Without_nul : String(1..6) := "No nul";
Char_Array_With_nul : IC.char_array(0..6) :=
IC.To_C(String_With_nul, True);
Char_Array_Without_nul : IC.char_array(0..5) :=
IC.To_C(String_Without_nul, False);
Char_Array_W_nul_Ptr : ICS.char_array_access :=
new IC.char_array'(Char_Array_With_nul);
Char_Array_WO_nul_Ptr : ICS.char_array_access :=
new IC.char_array'(Char_Array_Without_nul);
TC_chars_ptr : ICS.chars_ptr;
TC_size_t : IC.size_t := IC.size_t'First;
begin
-- Check that the function To_Chars_Ptr will return a Null_Ptr value
-- when the parameter Item is null.
if ICS.To_Chars_Ptr(Item => Null_Char_Array_Access,
Nul_Check => False) /= ICS.Null_Ptr or
ICS.To_Chars_Ptr(Null_Char_Array_Access,
Nul_Check => True) /= ICS.Null_Ptr or
ICS.To_Chars_Ptr(Null_Char_Array_Access) /= ICS.Null_Ptr
then
Report.Failed("Incorrect result from function To_Chars_Ptr " &
"with parameter Item being a null value");
end if;
-- Check that if the parameter Item is not null, and references a
-- chars_array object that does contain the nul char, and parameter
-- Nul_Check is True, function To_Chars_Ptr performs a pointer
-- conversion from char_array_access type to chars_ptr type.
begin
TC_chars_ptr := ICS.To_Chars_Ptr(Item => Char_Array_W_nul_Ptr,
Nul_Check => True);
if ICS.Value(TC_chars_ptr) /= String_With_nul or
ICS.Value(TC_chars_ptr) /= Char_Array_With_nul
then
Report.Failed("Incorrect result from function To_Chars_Ptr " &
"with parameter Item being non-null and " &
"containing the nul char");
end if;
exception
when IC.Terminator_Error =>
Report.Failed("Terminator_Error raised during the validation " &
"of Function To_Chars_Ptr");
when others =>
Report.Failed("Unexpected exception raised during the " &
"validation of Function To_Chars_Ptr");
end;
-- Check that if parameter Item is not null, and references a
-- chars_array object that does not contain nul, and parameter
-- Nul_Check is True, the To_Chars_Ptr function will propagate
-- Terminator_Error.
begin
TC_chars_ptr := ICS.To_Chars_Ptr(Char_Array_WO_nul_Ptr, True);
Report.Failed("Terminator_Error was not raised by function " &
"To_Chars_Ptr when given a parameter Item that " &
"is non-null, and does not contain the nul " &
"char, but parameter Nul_Check is True");
TC_size_t := ICS.Strlen(TC_chars_ptr); -- Use TC_chars_ptr to
-- defeat optimization;
exception
when IC.Terminator_Error => null; -- Expected exception.
when others =>
Report.Failed("Incorrect exception raised when function " &
"To_Chars_Ptr is given a parameter Item that " &
"is non-null, and does not contain the nul " &
"char, but parameter Nul_Check is True");
end;
-- Check that if the parameter Item is not null, and parameter
-- Nul_Check is False, function To_Chars_Ptr performs a pointer
-- conversion from char_array_access type to chars_ptr type.
begin
TC_chars_ptr := ICS.To_Chars_Ptr(Item => Char_Array_WO_nul_Ptr,
Nul_Check => False);
if ICS.Value(TC_chars_ptr, 6) /= String_Without_nul or
ICS.Value(TC_chars_ptr, 6) /= Char_Array_Without_nul
then
Report.Failed("Incorrect result from function To_Chars_Ptr " &
"with parameter Item being non-null and " &
"Nul_Check False");
end if;
exception
when IC.Terminator_Error =>
Report.Failed("Terminator_Error raised during the validation " &
"of Function To_Chars_Ptr");
when others =>
Report.Failed("Unexpected exception raised during the " &
"validation of Function To_Chars_Ptr");
end;
-- Check that the New_Char_Array function will return a chars_ptr type
-- pointer to an allocated object that has been initialized with
-- the value of parameter Chars.
TC_chars_ptr := ICS.New_String("");
ICS.Free(TC_chars_ptr); -- Reset the chars_ptr to Null_Ptr;
if TC_chars_ptr /= ICS.Null_Ptr then
Report.Failed("Reset of TC_chars_ptr to Null not successful - 1");
end if;
TC_chars_ptr := ICS.New_Char_Array(Chars => Char_Array_With_nul);
if TC_chars_ptr = ICS.Null_Ptr then -- Check allocation.
Report.Failed
("No allocation took place in call to New_Char_Array " &
"with a non-null char_array parameter containing a " &
"terminating nul char");
end if;
-- Length of allocated array is determined using Strlen since array
-- is nul terminated. Contents of array are validated using Value.
if ICS.Value (TC_chars_ptr, Length => 7) /= Char_Array_With_nul or
ICS.Strlen(Item => TC_chars_ptr) /= 6
then
Report.Failed
("Incorrect length of allocated char_array resulting " &
"from call of New_Char_Array with a non-null " &
"char_array parameter containing a terminating nul char");
end if;
ICS.Free(TC_chars_ptr); -- Reset the chars_ptr to Null_Ptr;
if TC_chars_ptr /= ICS.Null_Ptr then
Report.Failed("Reset of TC_chars_ptr to Null not successful - 2");
end if;
TC_chars_ptr := ICS.New_Char_Array(Chars => Char_Array_Without_nul);
if TC_chars_ptr = ICS.Null_Ptr then -- Check allocation.
Report.Failed
("No allocation took place in call to New_Char_Array " &
"with a non-null char_array parameter that did not " &
"contain a terminating nul char");
end if;
-- Function Value is used with the total length of the
-- Char_Array_Without_nul as a parameter to verify the allocation.
if ICS.Value(Item => TC_chars_ptr, Length => 6) /=
Char_Array_Without_nul or
ICS.Strlen(Item => TC_chars_ptr) /= 6
then
Report.Failed("Incorrect length of allocated char_array " &
"resulting from call of New_Char_Array with " &
"a non-null char_array parameter that did not " &
"contain a terminating nul char");
end if;
-- Check that the function New_String returns a chars_ptr specifying
-- an allocated object initialized to the value of parameter Str.
ICS.Free(TC_chars_ptr); -- Reset the chars_ptr to Null_Ptr;
if TC_chars_ptr /= ICS.Null_Ptr then
Report.Failed("Reset of TC_chars_ptr to Null not successful - 3");
end if;
TC_chars_ptr := ICS.New_String(Str => Test_String);
if ICS.Value(TC_chars_ptr) /= Test_String or
ICS.Value(ICS.New_Char_Array(IC.To_C(Test_String,True))) /=
Test_String
then
Report.Failed("Incorrect allocation resulting from function " &
"New_String with a string parameter value");
end if;
ICS.Free(TC_chars_ptr); -- Reset the chars_ptr to Null_Ptr;
if TC_chars_ptr /= ICS.Null_Ptr then
Report.Failed("Reset of TC_chars_ptr to Null not successful - 4");
end if;
if ICS.Value(ICS.New_String(String_Without_nul)) /=
String_Without_nul or
ICS.Value(ICS.New_Char_Array(IC.To_C(String_Without_nul,False))) /=
String_Without_nul
then
Report.Failed("Incorrect allocation resulting from function " &
"New_String with parameter value String_Without_nul");
end if;
exception
when The_Error : others =>
Report.Failed ("The following exception was raised in the " &
"Test_Block: " & Exception_Name(The_Error));
end Test_Block;
Report.Result;
end CXB3009;
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