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1 /****************************************************************************
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2 * *
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3 * GNAT COMPILER COMPONENTS *
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4 * *
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5 * T Y P E S *
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6 * *
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7 * C Header File *
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8 * *
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9 * Copyright (C) 1992-2017, Free Software Foundation, Inc. *
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10 * *
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11 * GNAT is free software; you can redistribute it and/or modify it under *
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12 * terms of the GNU General Public License as published by the Free Soft- *
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13 * ware Foundation; either version 3, or (at your option) any later ver- *
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14 * sion. GNAT is distributed in the hope that it will be useful, but WITH- *
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15 * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
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16 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
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17 * for more details. You should have received a copy of the GNU General *
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18 * Public License distributed with GNAT; see file COPYING3. If not, go to *
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19 * http://www.gnu.org/licenses for a complete copy of the license. *
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20 * *
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21 * GNAT was originally developed by the GNAT team at New York University. *
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22 * Extensive contributions were provided by Ada Core Technologies Inc. *
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23 * *
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24 ****************************************************************************/
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25
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26 /* This is the C file that corresponds to the Ada package spec Types. It was
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27 created manually from the files types.ads and types.adb.
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28
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29 This package contains host independent type definitions which are used
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30 throughout the compiler modules. The comments in the C version are brief
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31 reminders of the purpose of each declaration. For complete documentation,
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32 see the Ada version of these definitions. */
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33
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34 /* Boolean Types: */
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35
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36 /* Boolean type (cannot use enum, because of bit field restriction on some
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37 compilers). */
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38 typedef unsigned char Boolean;
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39 #define False 0
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40 #define True 1
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41
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42 /* General Use Integer Types */
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43
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44 /* Signed 32-bit integer */
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45 typedef int Int;
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46
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47 /* Signed 16-bit integer */
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48 typedef short Short;
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49
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50 /* Non-negative Int values */
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51 typedef Int Nat;
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52
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53 /* Positive Int values */
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54 typedef Int Pos;
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55
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56 /* 8-bit unsigned integer */
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57 typedef unsigned char Byte;
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58
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59 /* 8-Bit Character and String Types: */
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60
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61 /* 8-bit character type */
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62 typedef char Char;
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63
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64 /* Graphic characters, as defined in ARM */
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65 typedef Char Graphic_Character;
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66
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67 /* Line terminator characters (LF, VT, FF, CR) */
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68 typedef Char Line_Terminator;
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69
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70 /* Characters with the upper bit set */
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71 typedef Char Upper_Half_Character;
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72
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73 /* String type built on Char (note that zero is an OK index) */
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74 typedef Char *Str;
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75
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76 /* Pointer to string of Chars */
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77 typedef Char *Str_Ptr;
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78
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79 /* Types for the fat pointer used for strings and the template it points to.
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80 The fat pointer is conceptually a couple of pointers, but it is wrapped
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81 up in a special record type. On the Ada side, the record is naturally
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82 aligned (i.e. given pointer alignment) on regular platforms, but it is
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83 given twice this alignment on strict-alignment platforms for performance
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84 reasons. On the C side, for the sake of portability and simplicity, we
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85 overalign it on all platforms (so the machine mode is always the same as
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86 on the Ada side) but arrange to pass it in an even scalar position as a
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87 parameter to functions (so the scalar parameter alignment is always the
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88 same as on the Ada side). */
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89 typedef struct { int Low_Bound, High_Bound; } String_Template;
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90 typedef struct { const char *Array; String_Template *Bounds; }
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91 __attribute ((aligned (sizeof (char *) * 2))) String_Pointer;
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92
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93 /* Types for Node/Entity Kinds: */
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94
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95 /* The reason that these are defined here in the C version, rather than in the
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96 corresponding packages is that the requirement for putting bodies of
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97 inlined stuff IN the C header changes the dependencies. Both sinfo.h
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98 and einfo.h now reference routines defined in tree.h.
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99
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100 Note: these types would more naturally be defined as unsigned char, but
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101 once again, the annoying restriction on bit fields for some compilers
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102 bites us! */
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103
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104 typedef unsigned int Node_Kind;
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105 typedef unsigned int Entity_Kind;
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106
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107 /* Types used for Text Buffer Handling: */
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108
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109 /* Type used for subscripts in text buffer. */
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110 typedef Int Text_Ptr;
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111
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112 /* Text buffer used to hold source file or library information file. */
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113 typedef Char *Text_Buffer;
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114
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115 /* Pointer to text buffer. */
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116 typedef Char *Text_Buffer_Ptr;
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117
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118 /* Types used for Source Input Handling: */
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119
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120 /* Line number type, used for storing all line numbers. */
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121 typedef Int Line_Number_Type;
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122
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123 /* Column number type, used for storing all column numbers. */
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124 typedef Int Column_Number_Type;
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125
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126 /* Type used to store text of a source file. */
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127 typedef Text_Buffer Source_Buffer;
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128
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129 /* Pointer to source buffer. */
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130 typedef Text_Buffer_Ptr Source_Buffer_Ptr;
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131
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132 /* Type used for source location. */
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133 typedef Text_Ptr Source_Ptr;
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134
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135 /* Value used to indicate no source position set. */
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136 #define No_Location -1
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137
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138 /* Used for Sloc in all nodes in the representation of package Standard. */
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139 #define Standard_Location -2
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140
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141 /* Instance identifiers */
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142 typedef Nat Instance_Id;
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143
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144 /* Type used for union of all possible ID values covering all ranges */
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145 typedef int Union_Id;
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146
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147 /* Range definitions for Tree Data: */
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148
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149 #define List_Low_Bound -100000000
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150 #define List_High_Bound 0
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151
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152 #define Node_Low_Bound 0
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153 #define Node_High_Bound 99999999
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154
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155 #define Elist_Low_Bound 100000000
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156 #define Elist_High_Bound 199999999
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157
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158 #define Elmt_Low_Bound 200000000
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159 #define Elmt_High_Bound 299999999
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160
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161 #define Names_Low_Bound 300000000
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162 #define Names_High_Bound 399999999
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163
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164 #define Strings_Low_Bound 400000000
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165 #define Strings_High_Bound 499999999
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166
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167 #define Ureal_Low_Bound 500000000
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168 #define Ureal_High_Bound 599999999
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169
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170 #define Uint_Low_Bound 600000000
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171 #define Uint_Table_Start 2000000000
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172 #define Uint_High_Bound 2099999999
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173
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174 SUBTYPE (List_Range, Int, List_Low_Bound, List_High_Bound)
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175 SUBTYPE (Node_Range, Int, Node_Low_Bound, Node_High_Bound)
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176 SUBTYPE (Elist_Range, Int, Elist_Low_Bound, Elist_High_Bound)
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177 SUBTYPE (Elmt_Range, Int, Elmt_Low_Bound, Elmt_High_Bound)
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178 SUBTYPE (Names_Range, Int, Names_Low_Bound, Names_High_Bound)
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179 SUBTYPE (Strings_Range, Int, Strings_Low_Bound, Strings_High_Bound)
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180 SUBTYPE (Uint_Range, Int, Uint_Low_Bound, Uint_High_Bound)
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181 SUBTYPE (Ureal_Range, Int, Ureal_Low_Bound, Ureal_High_Bound)
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182
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183 /* Types for Names_Table Package: */
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184
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185 typedef Int Name_Id;
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186
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187 /* Name_Id value for no name present. */
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188 #define No_Name Names_Low_Bound
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189
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190 /* Name_Id value for bad name. */
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191 #define Error_Name (Names_Low_Bound + 1)
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192
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193 /* First subscript of names table. */
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194 #define First_Name_Id (Names_Low_Bound + 2)
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195
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196 /* Types for Tree Package: */
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197
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198 /* Subscript of nodes table entry. */
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199 typedef Int Node_Id;
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200
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201 /* Used in semantics for Node_Id value referencing an entity. */
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202 typedef Node_Id Entity_Id;
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203
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204 /* Null node. */
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205 #define Empty 0
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206
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207 /* Error node. */
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208 #define Error 1
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209
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210 /* Subscript of first allocated node. */
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211 #define First_Node_Id Empty
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212
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213 /* Subscript of entry in lists table. */
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214 typedef Int List_Id;
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215
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216 /* Indicates absence of a list. */
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217 #define No_List 0
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218
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219 /* Error list. */
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220 #define Error_List List_Low_Bound
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221
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222 /* Subscript of first allocated list header. */
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223 #define First_List_Id Error_List
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224
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225 /* Element list Id, subscript value of entry in lists table. */
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226 typedef Int Elist_Id;
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227
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228 /* Used to indicate absence of an element list. */
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229 #define No_Elist Elist_Low_Bound
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230
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231 /* Subscript of first allocated elist header */
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232 #define First_Elist_Id (No_Elist + 1)
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233
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234 /* Element Id, subscript value of entry in elements table. */
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235 typedef Int Elmt_Id;
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236
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237 /* Used to indicate absence of a list element. */
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238 #define No_Elmt Elmt_Low_Bound
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239
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240 /* Subscript of first allocated element */
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241 #define First_Elmt_Id (No_Elmt + 1)
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242
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243 /* Types for String_Table Package: */
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244
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245 /* Subscript of strings table entry. */
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246 typedef Int String_Id;
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247
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248 /* Used to indicate missing string Id. */
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249 #define No_String Strings_Low_Bound
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250
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251 /* Subscript of first entry in strings table. */
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252 #define First_String_Id (No_String + 1)
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253
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254 /* Types for Uint_Support Package: */
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255
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256 /* Type used for representation of universal integers. */
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257 typedef Int Uint;
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258
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259 /* Used to indicate missing Uint value. */
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260 #define No_Uint Uint_Low_Bound
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261
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262 /* Base value used to represent Uint values. */
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263 #define Base 32768
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264
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265 /* Minimum and maximum integers directly representable as Uint values */
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266 #define Min_Direct (-(Base - 1))
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267 #define Max_Direct ((Base - 1) * (Base - 1))
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268
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269 #define Uint_Direct_Bias (Uint_Low_Bound + Base)
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270 #define Uint_Direct_First (Uint_Direct_Bias + Min_Direct)
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271 #define Uint_Direct_Last (Uint_Direct_Bias + Max_Direct)
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272
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273 /* Define range of direct biased values */
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274 SUBTYPE (Uint_Direct, Uint, Uint_Direct_First, Uint_Direct_Last)
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275
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276 /* Constants in Uint format. */
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277 #define Uint_0 (Uint_Direct_Bias + 0)
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278 #define Uint_1 (Uint_Direct_Bias + 1)
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279 #define Uint_2 (Uint_Direct_Bias + 2)
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280 #define Uint_10 (Uint_Direct_Bias + 10)
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281 #define Uint_16 (Uint_Direct_Bias + 16)
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282
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283 #define Uint_Minus_1 (Uint_Direct_Bias - 1)
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284
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285 /* Types for Ureal_Support Package: */
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286
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287 /* Type used for representation of universal reals. */
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288 typedef Int Ureal;
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289
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290 /* Used to indicate missing Uint value. */
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291 #define No_Ureal Ureal_Low_Bound
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292
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293 /* Subscript of first entry in Ureal table. */
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294 #define Ureal_First_Entry (No_Ureal + 1)
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295
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296 /* Character Code Type: */
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297
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298 /* Character code value, intended to be 32 bits. */
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299 typedef unsigned Char_Code;
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300
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301 /* Types Used for Library Management: */
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302
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303 /* Unit number. */
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304 typedef Int Unit_Number_Type;
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305
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306 /* Unit number value for main unit. */
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307 #define Main_Unit 0
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308
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309 /* Type used for lines table. */
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310 typedef Source_Ptr *Lines_Table_Type;
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311
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312 /* Type used for pointer to lines table. */
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313 typedef Source_Ptr *Lines_Table_Ptr;
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314
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315 /* Length of time stamp value. */
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316 #define Time_Stamp_Length 22
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317
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318 /* Type used to represent time stamp. */
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319 typedef Char *Time_Stamp_Type;
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320
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321 /* Name_Id synonym used for file names. */
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322 typedef Name_Id File_Name_Type;
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323
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324 /* Constant used to indicate no file found. */
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325 #define No_File No_Name
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326
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327 /* Name_Id synonym used for unit names. */
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328 typedef Name_Id Unit_Name_Type;
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329
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330 /* Definitions for mechanism type and values */
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331 typedef Int Mechanism_Type;
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332 #define Default 0
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333 #define By_Copy (-1)
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334 #define By_Reference (-2)
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335 #define By_Descriptor (-3)
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336 #define By_Descriptor_UBS (-4)
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337 #define By_Descriptor_UBSB (-5)
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338 #define By_Descriptor_UBA (-6)
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339 #define By_Descriptor_S (-7)
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340 #define By_Descriptor_SB (-8)
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341 #define By_Descriptor_A (-9)
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342 #define By_Descriptor_NCA (-10)
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343 #define By_Descriptor_Last (-10)
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344 #define By_Short_Descriptor (-11)
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345 #define By_Short_Descriptor_UBS (-12)
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346 #define By_Short_Descriptor_UBSB (-13)
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347 #define By_Short_Descriptor_UBA (-14)
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348 #define By_Short_Descriptor_S (-15)
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349 #define By_Short_Descriptor_SB (-16)
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350 #define By_Short_Descriptor_A (-17)
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351 #define By_Short_Descriptor_NCA (-18)
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352 #define By_Short_Descriptor_Last (-18)
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353
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354 /* Definitions of Reason codes for Raise_xxx_Error nodes */
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355 #define CE_Access_Check_Failed 0
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356 #define CE_Access_Parameter_Is_Null 1
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357 #define CE_Discriminant_Check_Failed 2
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358 #define CE_Divide_By_Zero 3
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359 #define CE_Explicit_Raise 4
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360 #define CE_Index_Check_Failed 5
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361 #define CE_Invalid_Data 6
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362 #define CE_Length_Check_Failed 7
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363 #define CE_Null_Exception_Id 8
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364 #define CE_Null_Not_Allowed 9
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365 #define CE_Overflow_Check_Failed 10
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366 #define CE_Partition_Check_Failed 11
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367 #define CE_Range_Check_Failed 12
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368 #define CE_Tag_Check_Failed 13
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369
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370 #define PE_Access_Before_Elaboration 14
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371 #define PE_Accessibility_Check_Failed 15
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372 #define PE_Address_Of_Intrinsic 16
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373 #define PE_Aliased_Parameters 17
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374 #define PE_All_Guards_Closed 18
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375 #define PE_Bad_Predicated_Generic_Type 19
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376 #define PE_Current_Task_In_Entry_Body 20
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377 #define PE_Duplicated_Entry_Address 21
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378 #define PE_Explicit_Raise 22
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379 #define PE_Finalize_Raised_Exception 23
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380 #define PE_Implicit_Return 24
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381 #define PE_Misaligned_Address_Value 25
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382 #define PE_Missing_Return 26
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383 #define PE_Non_Transportable_Actual 31
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384 #define PE_Overlaid_Controlled_Object 27
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385 #define PE_Potentially_Blocking_Operation 28
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386 #define PE_Stream_Operation_Not_Allowed 36
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387 #define PE_Stubbed_Subprogram_Called 29
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388 #define PE_Unchecked_Union_Restriction 30
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389
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390 #define SE_Empty_Storage_Pool 32
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391 #define SE_Explicit_Raise 33
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392 #define SE_Infinite_Recursion 34
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393 #define SE_Object_Too_Large 35
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394
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395 #define LAST_REASON_CODE 36
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