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1 -- CXB3011.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 version of Function Value with a chars_ptr parameter
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28 -- that returns a String result returns an Ada string containing the
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29 -- characters pointed to by the chars_ptr parameter, up to (but not
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30 -- including) the terminating nul.
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31 --
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32 -- Check that the version of Function Value with a chars_ptr parameter
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33 -- and a size_t parameter that returns a String result returns the
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34 -- shorter of:
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35 -- 1) a String of the first size_t number of characters, or
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36 -- 2) a String of characters up to (but not including) the
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37 -- terminating nul.
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38 --
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39 -- Check that the Function Strlen returns a size_t result that
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40 -- corresponds to the number of chars in the array pointed to by Item,
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41 -- up to but not including the terminating nul.
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42 --
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43 -- Check that both of the above versions of Function Value and
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44 -- Function Strlen propagate Dereference_Error if the Item parameter
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45 -- is Null_Ptr.
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46 --
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47 -- TEST DESCRIPTION:
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48 -- This test validates two versions of Function Value, and the Function
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49 -- Strlen. A series of char_ptr values are provided as input, and
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50 -- results are compared for length or 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', 'A'..'Z', '0'..'9', '*' and '.'.
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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,
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60 -- and report "PASSED".
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61 --
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62 --
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63 -- CHANGE HISTORY:
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64 -- 28 Sep 95 SAIC Initial prerelease version.
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65 -- 13 May 96 SAIC Incorporated reviewer comments for ACVC 2.1.
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66 -- 26 Oct 96 SAIC Incorporated reviewer comments.
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67 --
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68 --!
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69
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70 with Report;
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71 with Ada.Characters.Latin_1;
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72 with Interfaces.C.Strings; -- N/A => ERROR
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73
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74 procedure CXB3011 is
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75 begin
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76
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77 Report.Test ("CXB3011", "Check that the two versions of Function Value " &
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78 "returning a String result, and the Function " &
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79 "Strlen, produce correct results");
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80
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81 Test_Block:
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82 declare
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83
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84 package IC renames Interfaces.C;
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85 package ICS renames Interfaces.C.Strings;
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86 package ACL1 renames Ada.Characters.Latin_1;
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87
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88 use type IC.char_array;
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89 use type IC.size_t;
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90 use type ICS.chars_ptr;
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91
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92 Null_Char_Array_Access : constant ICS.char_array_access := null;
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93
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94 TC_String : String(1..5) := (others => 'X');
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95 TC_String_1 : constant String := "*.3*0";
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96 TC_String_2 : constant String := "Two";
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97 TC_String_3 : constant String := "Five5";
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98 TC_Blank_String : constant String(1..5) := (others => ' ');
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99
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100 TC_char_array : IC.char_array :=
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101 IC.To_C(TC_Blank_String, True);
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102 TC_char_array_1 : constant IC.char_array :=
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103 IC.To_C(TC_String_1, True);
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104 TC_char_array_2 : constant IC.char_array :=
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105 IC.To_C(TC_String_2, True);
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106 TC_char_array_3 : constant IC.char_array :=
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107 IC.To_C(TC_String_3, True);
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108 TC_Blank_char_array : constant IC.char_array :=
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109 IC.To_C(TC_Blank_String, True);
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110
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111 TC_chars_ptr : ICS.chars_ptr :=
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112 ICS.New_Char_Array(TC_Blank_char_array);
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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 version of Function Value with a chars_ptr parameter
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120 -- that returns a String result returns an Ada string containing the
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121 -- characters pointed to by the chars_ptr parameter, up to (but not
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122 -- including) the terminating nul.
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123
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124 TC_chars_ptr := ICS.New_Char_Array(TC_char_array_1);
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125 TC_String := ICS.Value(Item => TC_chars_ptr);
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126
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127 if TC_String /= TC_String_1 or
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128 TC_String(TC_String'Last) = ACL1.NUL
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129 then
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130 Report.Failed("Incorrect result from Function Value - 1");
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131 end if;
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132
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133 TC_chars_ptr := ICS.New_Char_Array(TC_char_array_2);
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134
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135 if ICS.Value(Item => TC_chars_ptr) /=
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136 IC.To_Ada(ICS.Value(TC_chars_ptr), Trim_Nul => True)
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137 then
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138 Report.Failed("Incorrect result from Function Value - 2");
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139 end if;
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140
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141 TC_chars_ptr := ICS.New_Char_Array(TC_char_array_3);
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142 TC_String := ICS.Value(TC_chars_ptr);
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143
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144 if TC_String /= TC_String_3 or
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145 TC_String(TC_String'Last) = ACL1.NUL
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146 then
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147 Report.Failed("Incorrect result from Function Value - 3");
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148 end if;
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149
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150
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151 -- Check that the version of Function Value with a chars_ptr parameter
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152 -- and a size_t parameter that returns a String result returns the
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153 -- shorter of:
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154 -- 1) a String of the first size_t number of characters, or
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155 -- 2) a String of characters up to (but not including) the
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156 -- terminating nul.
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157 --
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158
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159 -- Case 1 : Length parameter specifies a length shorter than total
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160 -- length.
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161
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162 TC_chars_ptr := ICS.New_Char_Array(TC_char_array_1);
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163 TC_String := "XXXXX"; -- Reinitialize all characters in string.
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164 TC_String(1..5) := ICS.Value(Item => TC_chars_ptr, Length => 6);
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165
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166 if TC_String(1..4) /= TC_String_1(1..4) or
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167 TC_String(TC_String'Last) = ACL1.NUL
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168 then
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169 Report.Failed("Incorrect result from Function Value - 4");
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170 end if;
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171
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172 -- Case 2 : Length parameter specifies total length.
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173
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174 TC_chars_ptr := ICS.New_Char_Array(TC_char_array_2);
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175
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176 if ICS.Value(TC_chars_ptr, Length => 5) /=
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177 IC.To_Ada(ICS.Value(TC_chars_ptr), Trim_Nul => True)
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178 then
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179 Report.Failed("Incorrect result from Function Value - 5");
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180 end if;
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181
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182 -- Case 3 : Length parameter specifies a length longer than total
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183 -- length.
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184
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185 TC_chars_ptr := ICS.New_Char_Array(TC_char_array_3);
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186 TC_String := "XXXXX"; -- Reinitialize all characters in string.
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187 TC_String := ICS.Value(TC_chars_ptr, 7);
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188
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189 if TC_String /= TC_String_3 or
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190 TC_String(TC_String'Last) = ACL1.NUL
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191 then
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192 Report.Failed("Incorrect result from Function Value - 6");
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193 end if;
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194
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195
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196 -- Check that the Function Strlen returns a size_t result that
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197 -- corresponds to the number of chars in the array pointed to by
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198 -- parameter Item, up to but not including the terminating nul.
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199
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200 TC_chars_ptr := ICS.New_Char_Array(IC.To_C("A longer string value"));
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201 TC_size_t := ICS.Strlen(TC_chars_ptr);
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202
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203 if TC_size_t /= 21 then
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204 Report.Failed("Incorrect result from Function Strlen - 1");
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205 end if;
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206
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207 TC_chars_ptr := ICS.New_Char_Array(TC_char_array_2);
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208 TC_size_t := ICS.Strlen(TC_chars_ptr);
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209
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210 if TC_size_t /= 3 then -- Nul not included in length.
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211 Report.Failed("Incorrect result from Function Strlen - 2");
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212 end if;
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213
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214 TC_chars_ptr := ICS.New_Char_Array(IC.To_C(""));
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215 TC_size_t := ICS.Strlen(TC_chars_ptr);
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216
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217 if TC_size_t /= 0 then
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218 Report.Failed("Incorrect result from Function Strlen - 3");
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219 end if;
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220
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221
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222 -- Check that both of the above versions of Function Value and
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223 -- function Strlen propagate Dereference_Error if the Item parameter
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224 -- is Null_Ptr.
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225
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226 begin
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227 TC_chars_ptr := ICS.Null_Ptr;
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228 TC_String := ICS.Value(Item => TC_chars_ptr);
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229 Report.Failed("Function Value (without Length parameter) did not " &
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230 "raise Dereference_Error when provided a null Item " &
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231 "parameter input value");
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232 if TC_String(1) = '1' then -- Defeat optimization.
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233 Report.Comment("Should never be printed");
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234 end if;
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235 exception
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236 when ICS.Dereference_Error => null; -- OK, expected exception.
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237 when others =>
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238 Report.Failed("Incorrect exception raised by Function Value " &
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239 "with Item parameter, when the Item parameter " &
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240 "is Null_Ptr");
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241 end;
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242
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243 begin
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244 TC_chars_ptr := ICS.Null_Ptr;
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245 TC_String := ICS.Value(Item => TC_chars_ptr, Length => 4);
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246 Report.Failed("Function Value (with Length parameter) did not " &
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247 "raise Dereference_Error when provided a null Item " &
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248 "parameter input value");
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249 if TC_String(1) = '1' then -- Defeat optimization.
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250 Report.Comment("Should never be printed");
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251 end if;
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252 exception
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253 when ICS.Dereference_Error => null; -- OK, expected exception.
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254 when others =>
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255 Report.Failed("Incorrect exception raised by Function Value " &
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256 "with both Item and Length parameters, when " &
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257 "the Item parameter is Null_Ptr");
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258 end;
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259
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260 begin
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261 TC_chars_ptr := ICS.Null_Ptr;
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262 TC_size_t := ICS.Strlen(Item => TC_chars_ptr);
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263 Report.Failed("Function Strlen did not raise Dereference_Error" &
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264 "when provided a null Item parameter input value");
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265 if TC_size_t = 35 then -- Defeat optimization.
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266 Report.Comment("Should never be printed");
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267 end if;
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268 exception
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269 when ICS.Dereference_Error => null; -- OK, expected exception.
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270 when others =>
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271 Report.Failed("Incorrect exception raised by Function Strlen " &
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272 "when the Item parameter is Null_Ptr");
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273 end;
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274
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275
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276 exception
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277 when others => Report.Failed ("Exception raised in Test_Block");
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278 end Test_Block;
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279
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280 Report.Result;
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281
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282 end CXB3011;
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