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-- CXB3011.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 version of Function Value with a chars_ptr parameter
-- that returns a String result returns an Ada string containing the
-- characters pointed to by the chars_ptr parameter, up to (but not
-- including) the terminating nul.
--
-- Check that the version of Function Value with a chars_ptr parameter
-- and a size_t parameter that returns a String result returns the
-- shorter of:
-- 1) a String of the first size_t number of characters, or
-- 2) a String of characters up to (but not including) the
-- terminating nul.
--
-- Check that the Function Strlen returns a size_t result that
-- corresponds to the number of chars in the array pointed to by Item,
-- up to but not including the terminating nul.
--
-- Check that both of the above versions of Function Value and
-- Function Strlen propagate Dereference_Error if the Item parameter
-- is Null_Ptr.
--
-- TEST DESCRIPTION:
-- This test validates two versions of Function Value, and the Function
-- Strlen. A series of char_ptr values are provided as input, and
-- results are compared for length or content.
--
-- This test assumes that the following characters are all included
-- in the implementation defined type Interfaces.C.char:
-- ' ', 'a'..'z', 'A'..'Z', '0'..'9', '*' and '.'.
--
-- 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:
-- 28 Sep 95 SAIC Initial prerelease version.
-- 13 May 96 SAIC Incorporated reviewer comments for ACVC 2.1.
-- 26 Oct 96 SAIC Incorporated reviewer comments.
--
--!
with Report;
with Ada.Characters.Latin_1;
with Interfaces.C.Strings; -- N/A => ERROR
procedure CXB3011 is
begin
Report.Test ("CXB3011", "Check that the two versions of Function Value " &
"returning a String result, and the Function " &
"Strlen, produce correct results");
Test_Block:
declare
package IC renames Interfaces.C;
package ICS renames Interfaces.C.Strings;
package ACL1 renames Ada.Characters.Latin_1;
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;
TC_String : String(1..5) := (others => 'X');
TC_String_1 : constant String := "*.3*0";
TC_String_2 : constant String := "Two";
TC_String_3 : constant String := "Five5";
TC_Blank_String : constant String(1..5) := (others => ' ');
TC_char_array : IC.char_array :=
IC.To_C(TC_Blank_String, True);
TC_char_array_1 : constant IC.char_array :=
IC.To_C(TC_String_1, True);
TC_char_array_2 : constant IC.char_array :=
IC.To_C(TC_String_2, True);
TC_char_array_3 : constant IC.char_array :=
IC.To_C(TC_String_3, True);
TC_Blank_char_array : constant IC.char_array :=
IC.To_C(TC_Blank_String, True);
TC_chars_ptr : ICS.chars_ptr :=
ICS.New_Char_Array(TC_Blank_char_array);
TC_size_t : IC.size_t := IC.size_t'First;
begin
-- Check that the version of Function Value with a chars_ptr parameter
-- that returns a String result returns an Ada string containing the
-- characters pointed to by the chars_ptr parameter, up to (but not
-- including) the terminating nul.
TC_chars_ptr := ICS.New_Char_Array(TC_char_array_1);
TC_String := ICS.Value(Item => TC_chars_ptr);
if TC_String /= TC_String_1 or
TC_String(TC_String'Last) = ACL1.NUL
then
Report.Failed("Incorrect result from Function Value - 1");
end if;
TC_chars_ptr := ICS.New_Char_Array(TC_char_array_2);
if ICS.Value(Item => TC_chars_ptr) /=
IC.To_Ada(ICS.Value(TC_chars_ptr), Trim_Nul => True)
then
Report.Failed("Incorrect result from Function Value - 2");
end if;
TC_chars_ptr := ICS.New_Char_Array(TC_char_array_3);
TC_String := ICS.Value(TC_chars_ptr);
if TC_String /= TC_String_3 or
TC_String(TC_String'Last) = ACL1.NUL
then
Report.Failed("Incorrect result from Function Value - 3");
end if;
-- Check that the version of Function Value with a chars_ptr parameter
-- and a size_t parameter that returns a String result returns the
-- shorter of:
-- 1) a String of the first size_t number of characters, or
-- 2) a String of characters up to (but not including) the
-- terminating nul.
--
-- Case 1 : Length parameter specifies a length shorter than total
-- length.
TC_chars_ptr := ICS.New_Char_Array(TC_char_array_1);
TC_String := "XXXXX"; -- Reinitialize all characters in string.
TC_String(1..5) := ICS.Value(Item => TC_chars_ptr, Length => 6);
if TC_String(1..4) /= TC_String_1(1..4) or
TC_String(TC_String'Last) = ACL1.NUL
then
Report.Failed("Incorrect result from Function Value - 4");
end if;
-- Case 2 : Length parameter specifies total length.
TC_chars_ptr := ICS.New_Char_Array(TC_char_array_2);
if ICS.Value(TC_chars_ptr, Length => 5) /=
IC.To_Ada(ICS.Value(TC_chars_ptr), Trim_Nul => True)
then
Report.Failed("Incorrect result from Function Value - 5");
end if;
-- Case 3 : Length parameter specifies a length longer than total
-- length.
TC_chars_ptr := ICS.New_Char_Array(TC_char_array_3);
TC_String := "XXXXX"; -- Reinitialize all characters in string.
TC_String := ICS.Value(TC_chars_ptr, 7);
if TC_String /= TC_String_3 or
TC_String(TC_String'Last) = ACL1.NUL
then
Report.Failed("Incorrect result from Function Value - 6");
end if;
-- Check that the Function Strlen returns a size_t result that
-- corresponds to the number of chars in the array pointed to by
-- parameter Item, up to but not including the terminating nul.
TC_chars_ptr := ICS.New_Char_Array(IC.To_C("A longer string value"));
TC_size_t := ICS.Strlen(TC_chars_ptr);
if TC_size_t /= 21 then
Report.Failed("Incorrect result from Function Strlen - 1");
end if;
TC_chars_ptr := ICS.New_Char_Array(TC_char_array_2);
TC_size_t := ICS.Strlen(TC_chars_ptr);
if TC_size_t /= 3 then -- Nul not included in length.
Report.Failed("Incorrect result from Function Strlen - 2");
end if;
TC_chars_ptr := ICS.New_Char_Array(IC.To_C(""));
TC_size_t := ICS.Strlen(TC_chars_ptr);
if TC_size_t /= 0 then
Report.Failed("Incorrect result from Function Strlen - 3");
end if;
-- Check that both of the above versions of Function Value and
-- function Strlen propagate Dereference_Error if the Item parameter
-- is Null_Ptr.
begin
TC_chars_ptr := ICS.Null_Ptr;
TC_String := ICS.Value(Item => TC_chars_ptr);
Report.Failed("Function Value (without Length parameter) did not " &
"raise Dereference_Error when provided a null Item " &
"parameter input value");
if TC_String(1) = '1' then -- Defeat optimization.
Report.Comment("Should never be printed");
end if;
exception
when ICS.Dereference_Error => null; -- OK, expected exception.
when others =>
Report.Failed("Incorrect exception raised by Function Value " &
"with Item parameter, when the Item parameter " &
"is Null_Ptr");
end;
begin
TC_chars_ptr := ICS.Null_Ptr;
TC_String := ICS.Value(Item => TC_chars_ptr, Length => 4);
Report.Failed("Function Value (with Length parameter) did not " &
"raise Dereference_Error when provided a null Item " &
"parameter input value");
if TC_String(1) = '1' then -- Defeat optimization.
Report.Comment("Should never be printed");
end if;
exception
when ICS.Dereference_Error => null; -- OK, expected exception.
when others =>
Report.Failed("Incorrect exception raised by Function Value " &
"with both Item and Length parameters, when " &
"the Item parameter is Null_Ptr");
end;
begin
TC_chars_ptr := ICS.Null_Ptr;
TC_size_t := ICS.Strlen(Item => TC_chars_ptr);
Report.Failed("Function Strlen did not raise Dereference_Error" &
"when provided a null Item parameter input value");
if TC_size_t = 35 then -- Defeat optimization.
Report.Comment("Should never be printed");
end if;
exception
when ICS.Dereference_Error => null; -- OK, expected exception.
when others =>
Report.Failed("Incorrect exception raised by Function Strlen " &
"when the Item parameter is Null_Ptr");
end;
exception
when others => Report.Failed ("Exception raised in Test_Block");
end Test_Block;
Report.Result;
end CXB3011;