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111
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1 -- CXB3009.A
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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 --
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26 -- OBJECTIVE:
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27 -- Check that the function To_Chars_Ptr will return a Null_Ptr value
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28 -- when the parameter Item is null. If the parameter Item is not null,
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29 -- and references a chars_array object that does contain the char nul,
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30 -- and parameter Nul_Check is True, check that To_Chars_Ptr performs a
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31 -- pointer conversion from char_array_access type to chars_ptr type.
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32 -- Check that if parameter Item is not null, and references a
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33 -- chars_array object that does not contain nul, and parameter Nul_Check
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34 -- is True, the To_Chars_Ptr function will propagate Terminator_Error.
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35 -- Check that if parameter Item is not null, and parameter Nul_Check
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36 -- is False, check that To_Chars_Ptr performs a pointer conversion from
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37 -- char_array_access type to chars_ptr type.
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38 --
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39 -- Check that the New_Char_Array function will return a chars_ptr type
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40 -- pointer to an allocated object that has been initialized with
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41 -- the value of parameter Chars.
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42 --
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43 -- Check that the function New_String returns a chars_ptr initialized
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44 -- to a nul-terminated string having the value of the Str parameter.
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45 --
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46 -- TEST DESCRIPTION:
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47 -- This test uses a variety of of string, char_array,
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48 -- char_array_access and char_ptr values in order to validate the
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49 -- functions under test, and results are compared for both length
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50 -- and content.
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51 --
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52 -- This test assumes that the following characters are all included
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53 -- in the implementation defined type Interfaces.C.char:
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54 -- ' ', 'a'..'z', and 'A'.. 'Z'.
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55 --
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56 -- APPLICABILITY CRITERIA:
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57 -- This test is applicable to all implementations that provide
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58 -- package Interfaces.C.Strings. If an implementation provides
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59 -- package Interfaces.C.Strings, this test must compile, execute, and
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60 -- report "PASSED".
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61 --
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62 --
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63 -- CHANGE HISTORY:
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64 -- 20 Sep 95 SAIC Initial prerelease version.
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65 -- 09 May 96 SAIC Incorporated reviewer comments for ACVC 2.1.
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66 -- 01 DEC 97 EDS Remove incorrect block of code (previously
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67 -- lines 264-287)
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68 -- 14 Sep 99 RLB Added check for behavior of To_Chars_Ptr when
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69 -- Nul_Check => False. (From Technical
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70 -- Corrigendum 1).
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71 --!
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72
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73 with Report;
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74 with Interfaces.C.Strings; -- N/A => ERROR
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75 with Ada.Characters.Latin_1;
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76 with Ada.Exceptions;
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77 with Ada.Strings.Fixed;
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78
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79 procedure CXB3009 is
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80 begin
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81
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82 Report.Test ("CXB3009", "Check that functions To_Chars_Ptr, " &
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83 "New_Chars_Array, and New_String produce " &
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84 "correct results");
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85
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86 Test_Block:
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87 declare
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88
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89 package IC renames Interfaces.C;
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90 package ICS renames Interfaces.C.Strings;
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91 use Ada.Exceptions;
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92
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93 use type IC.char_array;
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94 use type IC.size_t;
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95 use type ICS.chars_ptr;
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96
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97 Null_Char_Array_Access : constant ICS.char_array_access := null;
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98
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99 Test_String : constant String := "Test String";
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100 String_With_nul : String(1..6) := "Addnul";
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101 String_Without_nul : String(1..6) := "No nul";
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102
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103 Char_Array_With_nul : IC.char_array(0..6) :=
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104 IC.To_C(String_With_nul, True);
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105 Char_Array_Without_nul : IC.char_array(0..5) :=
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106 IC.To_C(String_Without_nul, False);
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107 Char_Array_W_nul_Ptr : ICS.char_array_access :=
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108 new IC.char_array'(Char_Array_With_nul);
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109 Char_Array_WO_nul_Ptr : ICS.char_array_access :=
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110 new IC.char_array'(Char_Array_Without_nul);
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111
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112 TC_chars_ptr : ICS.chars_ptr;
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113
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114 TC_size_t : IC.size_t := IC.size_t'First;
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115
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116
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117 begin
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118
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119 -- Check that the function To_Chars_Ptr will return a Null_Ptr value
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120 -- when the parameter Item is null.
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121
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122 if ICS.To_Chars_Ptr(Item => Null_Char_Array_Access,
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123 Nul_Check => False) /= ICS.Null_Ptr or
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124 ICS.To_Chars_Ptr(Null_Char_Array_Access,
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125 Nul_Check => True) /= ICS.Null_Ptr or
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126 ICS.To_Chars_Ptr(Null_Char_Array_Access) /= ICS.Null_Ptr
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127 then
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128 Report.Failed("Incorrect result from function To_Chars_Ptr " &
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129 "with parameter Item being a null value");
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130 end if;
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131
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132
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133 -- Check that if the parameter Item is not null, and references a
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134 -- chars_array object that does contain the nul char, and parameter
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135 -- Nul_Check is True, function To_Chars_Ptr performs a pointer
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136 -- conversion from char_array_access type to chars_ptr type.
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137
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138 begin
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139 TC_chars_ptr := ICS.To_Chars_Ptr(Item => Char_Array_W_nul_Ptr,
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140 Nul_Check => True);
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141
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142 if ICS.Value(TC_chars_ptr) /= String_With_nul or
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143 ICS.Value(TC_chars_ptr) /= Char_Array_With_nul
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144 then
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145 Report.Failed("Incorrect result from function To_Chars_Ptr " &
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146 "with parameter Item being non-null and " &
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147 "containing the nul char");
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148 end if;
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149 exception
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150 when IC.Terminator_Error =>
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151 Report.Failed("Terminator_Error raised during the validation " &
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152 "of Function To_Chars_Ptr");
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153 when others =>
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154 Report.Failed("Unexpected exception raised during the " &
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155 "validation of Function To_Chars_Ptr");
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156 end;
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157
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158 -- Check that if parameter Item is not null, and references a
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159 -- chars_array object that does not contain nul, and parameter
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160 -- Nul_Check is True, the To_Chars_Ptr function will propagate
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161 -- Terminator_Error.
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162
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163 begin
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164 TC_chars_ptr := ICS.To_Chars_Ptr(Char_Array_WO_nul_Ptr, True);
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165 Report.Failed("Terminator_Error was not raised by function " &
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166 "To_Chars_Ptr when given a parameter Item that " &
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167 "is non-null, and does not contain the nul " &
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168 "char, but parameter Nul_Check is True");
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169 TC_size_t := ICS.Strlen(TC_chars_ptr); -- Use TC_chars_ptr to
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170 -- defeat optimization;
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171 exception
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172 when IC.Terminator_Error => null; -- Expected exception.
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173 when others =>
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174 Report.Failed("Incorrect exception raised when function " &
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175 "To_Chars_Ptr is given a parameter Item that " &
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176 "is non-null, and does not contain the nul " &
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177 "char, but parameter Nul_Check is True");
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178 end;
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179
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180 -- Check that if the parameter Item is not null, and parameter
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181 -- Nul_Check is False, function To_Chars_Ptr performs a pointer
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182 -- conversion from char_array_access type to chars_ptr type.
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183
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184 begin
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185 TC_chars_ptr := ICS.To_Chars_Ptr(Item => Char_Array_WO_nul_Ptr,
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186 Nul_Check => False);
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187
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188 if ICS.Value(TC_chars_ptr, 6) /= String_Without_nul or
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189 ICS.Value(TC_chars_ptr, 6) /= Char_Array_Without_nul
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190 then
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191 Report.Failed("Incorrect result from function To_Chars_Ptr " &
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192 "with parameter Item being non-null and " &
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193 "Nul_Check False");
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194 end if;
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195 exception
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196 when IC.Terminator_Error =>
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197 Report.Failed("Terminator_Error raised during the validation " &
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198 "of Function To_Chars_Ptr");
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199 when others =>
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200 Report.Failed("Unexpected exception raised during the " &
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201 "validation of Function To_Chars_Ptr");
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202 end;
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203
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204
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205 -- Check that the New_Char_Array function will return a chars_ptr type
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206 -- pointer to an allocated object that has been initialized with
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207 -- the value of parameter Chars.
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208 TC_chars_ptr := ICS.New_String("");
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209 ICS.Free(TC_chars_ptr); -- Reset the chars_ptr to Null_Ptr;
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210
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211 if TC_chars_ptr /= ICS.Null_Ptr then
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212 Report.Failed("Reset of TC_chars_ptr to Null not successful - 1");
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213 end if;
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214
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215 TC_chars_ptr := ICS.New_Char_Array(Chars => Char_Array_With_nul);
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216
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217 if TC_chars_ptr = ICS.Null_Ptr then -- Check allocation.
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218 Report.Failed
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219 ("No allocation took place in call to New_Char_Array " &
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220 "with a non-null char_array parameter containing a " &
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221 "terminating nul char");
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222 end if;
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223
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224 -- Length of allocated array is determined using Strlen since array
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225 -- is nul terminated. Contents of array are validated using Value.
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226
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227 if ICS.Value (TC_chars_ptr, Length => 7) /= Char_Array_With_nul or
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228 ICS.Strlen(Item => TC_chars_ptr) /= 6
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229 then
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230 Report.Failed
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231 ("Incorrect length of allocated char_array resulting " &
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232 "from call of New_Char_Array with a non-null " &
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233 "char_array parameter containing a terminating nul char");
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234 end if;
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235
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236 ICS.Free(TC_chars_ptr); -- Reset the chars_ptr to Null_Ptr;
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237 if TC_chars_ptr /= ICS.Null_Ptr then
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238 Report.Failed("Reset of TC_chars_ptr to Null not successful - 2");
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239 end if;
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240
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241 TC_chars_ptr := ICS.New_Char_Array(Chars => Char_Array_Without_nul);
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242
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243 if TC_chars_ptr = ICS.Null_Ptr then -- Check allocation.
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244 Report.Failed
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245 ("No allocation took place in call to New_Char_Array " &
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246 "with a non-null char_array parameter that did not " &
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247 "contain a terminating nul char");
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248 end if;
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249
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250 -- Function Value is used with the total length of the
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251 -- Char_Array_Without_nul as a parameter to verify the allocation.
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252
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253 if ICS.Value(Item => TC_chars_ptr, Length => 6) /=
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254 Char_Array_Without_nul or
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255 ICS.Strlen(Item => TC_chars_ptr) /= 6
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256 then
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257 Report.Failed("Incorrect length of allocated char_array " &
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258 "resulting from call of New_Char_Array with " &
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259 "a non-null char_array parameter that did not " &
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260 "contain a terminating nul char");
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261 end if;
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262
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263
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264 -- Check that the function New_String returns a chars_ptr specifying
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265 -- an allocated object initialized to the value of parameter Str.
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266
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267 ICS.Free(TC_chars_ptr); -- Reset the chars_ptr to Null_Ptr;
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268 if TC_chars_ptr /= ICS.Null_Ptr then
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269 Report.Failed("Reset of TC_chars_ptr to Null not successful - 3");
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270 end if;
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271
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272 TC_chars_ptr := ICS.New_String(Str => Test_String);
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273
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274 if ICS.Value(TC_chars_ptr) /= Test_String or
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275 ICS.Value(ICS.New_Char_Array(IC.To_C(Test_String,True))) /=
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276 Test_String
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277 then
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278 Report.Failed("Incorrect allocation resulting from function " &
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279 "New_String with a string parameter value");
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280 end if;
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281
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282 ICS.Free(TC_chars_ptr); -- Reset the chars_ptr to Null_Ptr;
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283 if TC_chars_ptr /= ICS.Null_Ptr then
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284 Report.Failed("Reset of TC_chars_ptr to Null not successful - 4");
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285 end if;
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286
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287 if ICS.Value(ICS.New_String(String_Without_nul)) /=
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288 String_Without_nul or
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289 ICS.Value(ICS.New_Char_Array(IC.To_C(String_Without_nul,False))) /=
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290 String_Without_nul
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291 then
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292 Report.Failed("Incorrect allocation resulting from function " &
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293 "New_String with parameter value String_Without_nul");
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294 end if;
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295
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296
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297 exception
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298 when The_Error : others =>
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299 Report.Failed ("The following exception was raised in the " &
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300 "Test_Block: " & Exception_Name(The_Error));
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301 end Test_Block;
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302
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303 Report.Result;
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304
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305 end CXB3009;
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