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111
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1 -- CD10001.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 representation items may contain nonstatic expressions
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28 -- in the case that each expression in the representation item is a
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29 -- name that statically denotes a constant declared before the entity.
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30 --
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31 --
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32 -- TEST DESCRIPTION:
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33 -- For each of the specific items in the objective, this test checks
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34 -- an example of each of the categories of representation specification
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35 -- that are applicable to that objective, to wit:
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36 -- address clause ....................... Expressions need not be static
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37 -- alignment clause ..................... Expressions must be static
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38 -- bit order clause ..................... Not tested
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39 -- component size clause ................ Expressions must be static
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40 -- enumeration representation clause .... Expressions must be static
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41 -- external tag clause .................. Expressions must be static
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42 -- Import, Export and Convention pragmas Not tested
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43 -- input clause ......................... Not tested
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44 -- output clause ........................ Not tested
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45 -- Pack pragma .......................... Not tested
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46 -- read clause .......................... Not tested
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47 -- record representation clause ......... Expressions must be static
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48 -- size clause .......................... Expressions must be static
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49 -- small clause ......................... Expressions must be static
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50 -- storage pool clause .................. Not tested
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51 -- storage size clause .................. Expressions must be static
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52 -- write clause ......................... Not tested
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53 --
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54 -- APPLICABILITY CRITERIA:
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55 -- All implementations must attempt to compile this test.
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56 --
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57 -- For implementations validating against Systems Programming Annex (C):
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58 -- this test must execute.
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59 --
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60 -- For implementations not validating against Annex C:
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61 -- if this test compiles without error messages at compilation,
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62 -- it must bind and execute.
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63 --
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64 -- PASS/FAIL CRITERIA:
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65 -- For implementations validating against Systems Programming Annex (C):
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66 -- this test must execute, report PASSED, and complete normally,
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67 -- otherwise the test FAILS
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68 --
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69 -- For implementations not validating against Annex C:
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70 -- PASSING behavior is:
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71 -- this test executes, reports PASSED, and completes normally
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72 -- or
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73 -- this test executes and reports NOT_APPLICABLE
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74 -- or
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75 -- this test produces at least one error message at compilation, and
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76 -- the error message is associated with one of the items marked:
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77 -- -- N/A => ERROR.
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78 --
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79 -- All other behaviors are FAILING.
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80 --
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81
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82 -- CHANGE HISTORY:
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83 -- 11 JUL 95 SAIC Initial version
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84 -- 10 MAR 97 PWB.CTA Made Nonstatic_Entity nonstatic; changed
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85 -- Tenths'Small from 1.0/32.0 to 1.0/10.0,
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86 -- as expected by the later check; improved
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87 -- internal documentation.
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88 -- 16 FEB 98 EDS Modified test documentation.
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89 -- 24 NOV 98 RLB Changed Tenths'Small to 1.0/32.0, as this is
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90 -- necessary so that all implementations can
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91 -- process this test. (3.5.9(21) means non-binary
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92 -- smalls are optional.)
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93 -- 11 MAR 99 RLB Merged versions. Most EDS changes removed (as
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94 -- they made the test less applicable than the ACAA
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95 -- version).
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96 --!
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97
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98 ----------------------------------------------------------------- CD10001_0
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99
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100 with System;
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101 with System.Storage_Elements;
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102 with Impdef;
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103 with SPPRT13;
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104 package CD10001_0 is
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105
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106 -- a few types and objects to work with.
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107
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108 type Int is range -2048 .. 2047;
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109 My_Int : Int := 1024;
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110
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111 type Enumeration is (First, Second, Third, Fourth, Fifth);
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112
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113 -- a few names that statically denote constants:
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114
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115 Nonstatic_Entity : constant System.Address := -- Non-static
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116 System.Storage_Elements."+"
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117 ( SPPRT13.Variable_Address,
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118 System.Storage_Elements.Storage_Offset'(0) );
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119
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120 Tag_String : constant String := Impdef.External_Tag_Value; -- Static
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121 -- Check to ensure that Tag_String is static
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122 Tag_String_Length : constant := Tag_String'Length;
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123
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124 A_Reasonable_Size_Value : constant := System.Storage_Unit; -- Static
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125
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126 Zero : constant := 0; -- Static
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127 One : constant := 1; -- Static
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128 Two : constant := 2; -- Static
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129 Three : constant := 3; -- Static
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130 Four : constant := 4; -- Static
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131 Five : constant := 5; -- Static
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132
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133 K : constant Int := My_Int; -- Non-Static
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134
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135 -- Check that representation items containing nonstatic expressions are
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136 -- supported in the case that the representation item is a name that
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137 -- statically denotes a constant declared before the entity.
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138 --
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139 -- address clause
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140 -- Expression must be static - RM 13.3(12)
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141
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142 Object_Address : Enumeration;
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143 for Object_Address'Address use Nonstatic_Entity; -- N/A => ERROR.
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144
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145 -- alignment clause
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146 -- Expression must be static - RM 13.3(25)
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147
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148 Object_Alignment : Enumeration;
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149 for Object_Alignment'Alignment use One; -- N/A => ERROR.
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150
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151 -- bit order clause
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152 -- no interesting test can be specified
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153
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154 -- component size clause
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155 -- Expression must be static - RM 13.3(69)
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156
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157 type Array_With_Components is array(1..10) of Enumeration;
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158 for Array_With_Components'Component_Size
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159 use A_Reasonable_Size_Value; -- N/A => ERROR.
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160
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161 -- enumeration representation clause
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162 -- Expressions must be static - RM 13.4(6)
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163
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164 type Enumeration_1 is (First, Second, Third);
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165 for Enumeration_1 use (First => One, Second => Two, Third => Three);
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166
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167 -- external tag clause
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168 -- Expression must be static - RM 13.3(75)
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169
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170 type Some_Tagged_Type is tagged null record;
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171 for Some_Tagged_Type'External_Tag use Tag_String; -- N/A => ERROR.
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172
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173 -- Import, Export and Convention pragmas
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174 -- no interesting test can be specified
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175
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176 -- input clause
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177 -- no interesting test can be specified
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178
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179 -- output clause
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180 -- no interesting test can be specified
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181
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182 -- Pack pragma
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183 -- no interesting test can be specified
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184
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185 -- read clause
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186 -- no interesting test can be specified
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187
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188 -- record representation clause
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189 -- Expressions must be static - RM 13.3(10)
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190
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191 type Record_To_Layout is record
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192 Bit_0 : Boolean;
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193 Bit_1 : Boolean;
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194 end record;
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195 for Record_To_Layout use record -- N/A => ERROR.
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196 Bit_0 at Zero range Zero..Zero; -- N/A => ERROR.
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197 Bit_1 at Zero range Four..Four; -- N/A => ERROR.
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198 end record; -- N/A => ERROR.
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199
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200 -- size clause
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201 -- Expression must be static - RM 13.3(41)
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202
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203 Object_Size : Enumeration;
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204 for Object_Size'Size use A_Reasonable_Size_Value; -- N/A => ERROR.
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205
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206 -- small clause
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207 -- Expression must be static - RM 3.5.10(2)
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208
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209 type Tenths is delta 0.1 range 0.0..10.0;
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210 for Tenths'Small use 1.0 / (Two ** Five); -- N/A => ERROR.
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211
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212 -- storage pool clause
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213 -- Not tested
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214
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215 -- storage size clause
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216 -- Expression may be non-static - RM 13.11(15)
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217 type Reference is access Record_To_Layout;
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218 for Reference'Storage_Size use Four * K; -- N/A => ERROR.
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219
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220
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221 -- write clause
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222 -- no interesting test can be specified
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223
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224 procedure TC_Check_Values;
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225
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226 end CD10001_0;
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227
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228 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
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229
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230 with TCTouch;
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231 package body CD10001_0 is
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232
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233 use type System.Address;
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234
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235 procedure Assert( Truth : Boolean; Message: String ) is
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236 begin
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237 if not Truth then
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238 TCTouch.Implementation_Check( Message );
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239 end if;
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240 end Assert;
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241
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242 procedure TC_Check_Values is
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243 Record_Object : Record_To_Layout;
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244 begin
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245
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246 Assert(Object_Address'Address = Nonstatic_Entity,
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247 "Object not at specified address");
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248
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249 Assert(Object_Alignment'Alignment >= One,
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250 "Object not at specified alignment");
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251
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252 Assert(Array_With_Components'Component_Size = A_Reasonable_Size_Value,
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253 "Array Components not specified size");
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254
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255 -- I don't see how to reliably check this one:
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256 --
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257 -- type Enumeration_1 is (First, Second, Third);
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258 -- for Enumeration_1 use (First => One, Second => Two, Third => Three);
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259
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260 Assert(Some_Tagged_Type'External_Tag = Tag_String,
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261 "External_Tag not specified value");
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262 Assert(Record_Object.Bit_0'First_Bit = Zero,
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263 "Record object First_Bit not zero");
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264
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265 Assert(Record_Object.Bit_1'Last_Bit = Four,
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266 "Record object Last_Bit not four");
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267
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268 Assert(Object_Size'Size = A_Reasonable_Size_Value,
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269 "Object size not specified value");
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270
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271 Assert(Tenths'Small = 1.0 / Two ** Five,
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272 "Tenths small not specified value");
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273
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274 Assert(Reference'Storage_Size = 4096, -- Four * K,
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275 "Reference storage size not specified value");
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276
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277 end TC_Check_Values;
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278
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279 end CD10001_0;
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280
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281 ------------------------------------------------------------------- CD10001
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282
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283 with Report;
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284 with CD10001_0;
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285
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286 procedure CD10001 is
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287
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288 begin -- Main test procedure.
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289
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290 Report.Test ("CD10001", "Check that representation items containing " &
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291 "nonstatic expressions are supported in the " &
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292 "case that the representation item is a name " &
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293 "that statically denotes a constant declared " &
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294 "before the entity" );
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295
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296 CD10001_0.TC_Check_Values;
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297
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298 Report.Result;
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299
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300 end CD10001;
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