| -- 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; |
