1 | // |
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2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo |
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3 | // |
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4 | // The contents of this file are covered under the licence agreement in the |
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5 | // file "LICENCE" distributed with Cforall. |
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6 | // |
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7 | // Type.hpp -- |
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8 | // |
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9 | // Author : Aaron B. Moss |
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10 | // Created On : Thu May 9 10:00:00 2019 |
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11 | // Last Modified By : Andrew Beach |
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12 | // Last Modified On : Wed Jul 14 15:54:00 2021 |
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13 | // Update Count : 7 |
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14 | // |
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15 | |
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16 | #pragma once |
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17 | |
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18 | #include <cassert> |
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19 | #include <cstddef> // for nullptr_t |
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20 | #include <cstdint> // for uintptr_t |
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21 | #include <utility> // for move |
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22 | #include <vector> |
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23 | |
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24 | #include "CVQualifiers.hpp" |
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25 | #include "Decl.hpp" // for AggregateDecl subclasses |
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26 | #include "Fwd.hpp" |
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27 | #include "Node.hpp" // for Node, ptr, ptr_base |
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28 | #include "Visitor.hpp" |
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29 | |
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30 | // Must be included in *all* AST classes; should be #undef'd at the end of the file |
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31 | #define MUTATE_FRIEND \ |
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32 | template<typename node_t> friend node_t * mutate(const node_t * node); \ |
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33 | template<typename node_t> friend node_t * shallowCopy(const node_t * node); |
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34 | |
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35 | namespace ast { |
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36 | |
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37 | template< typename T > class Pass; |
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38 | |
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39 | class Type : public Node { |
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40 | public: |
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41 | CV::Qualifiers qualifiers; |
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42 | std::vector<ptr<Attribute>> attributes; |
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43 | |
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44 | Type( CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ) |
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45 | : qualifiers(q), attributes(std::move(as)) {} |
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46 | |
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47 | bool is_const() const { return qualifiers.is_const; } |
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48 | bool is_volatile() const { return qualifiers.is_volatile; } |
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49 | bool is_restrict() const { return qualifiers.is_restrict; } |
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50 | bool is_mutex() const { return qualifiers.is_mutex; } |
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51 | bool is_atomic() const { return qualifiers.is_atomic; } |
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52 | |
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53 | Type * set_const( bool v ) { qualifiers.is_const = v; return this; } |
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54 | Type * set_volatile( bool v ) { qualifiers.is_volatile = v; return this; } |
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55 | Type * set_restrict( bool v ) { qualifiers.is_restrict = v; return this; } |
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56 | Type * set_mutex( bool v ) { qualifiers.is_mutex = v; return this; } |
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57 | Type * set_atomic( bool v ) { qualifiers.is_atomic = v; return this; } |
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58 | |
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59 | /// How many elemental types are represented by this type |
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60 | virtual unsigned size() const { return 1; } |
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61 | /// Is this a void type? |
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62 | virtual bool isVoid() const { return size() == 0; } |
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63 | /// Get the i'th component of this type |
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64 | virtual const Type * getComponent( unsigned i ) const; |
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65 | |
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66 | /// type without outer pointers and arrays |
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67 | const Type * stripDeclarator() const; |
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68 | /// type without outer references |
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69 | const Type * stripReferences() const; |
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70 | /// number of reference occuring consecutively on the outermost layer of this type |
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71 | /// (i.e. do not count references nested within other types) |
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72 | virtual unsigned referenceDepth() const { return 0; } |
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73 | /// true iff type is complete type (i.e. compiler knows the size, alignment, and layout) |
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74 | virtual bool isComplete() const { return true; } |
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75 | |
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76 | virtual const Type * accept( Visitor & v ) const override = 0; |
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77 | private: |
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78 | virtual Type * clone() const override = 0; |
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79 | MUTATE_FRIEND |
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80 | }; |
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81 | |
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82 | /// Clear/reset the qualifiers on this type, cloning only if necessary |
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83 | template< enum Node::ref_type ref_t > |
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84 | void reset_qualifiers( ptr_base< Type, ref_t > & p, CV::Qualifiers q = {} ) { |
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85 | if ( p->qualifiers != q ) p.get_and_mutate()->qualifiers = q; |
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86 | } |
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87 | |
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88 | /// Add the specified qualifiers to this type, cloning only if necessary |
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89 | template< enum Node::ref_type ref_t > |
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90 | void add_qualifiers( ptr_base< Type, ref_t > & p, CV::Qualifiers q ) { |
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91 | if ( ( p->qualifiers & q ) != q ) p.get_and_mutate()->qualifiers |= q; |
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92 | } |
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93 | |
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94 | /// Remove the specified qualifiers from this type, cloning only if necessary |
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95 | template< enum Node::ref_type ref_t > |
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96 | void remove_qualifiers( ptr_base< Type, ref_t > & p, CV::Qualifiers q ) { |
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97 | if ( ( p->qualifiers & q ) != 0 ) p.get_and_mutate()->qualifiers -= q; |
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98 | } |
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99 | |
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100 | /// `void` |
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101 | class VoidType final : public Type { |
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102 | public: |
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103 | VoidType( CV::Qualifiers q = {} ) : Type( q ) {} |
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104 | |
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105 | unsigned size() const override { return 0; } |
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106 | bool isVoid() const override { return true; } |
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107 | bool isComplete() const override { return false; } |
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108 | |
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109 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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110 | private: |
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111 | VoidType * clone() const override { return new VoidType{ *this }; } |
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112 | MUTATE_FRIEND |
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113 | }; |
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114 | |
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115 | /// Built-in arithmetic type |
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116 | class BasicType final : public Type { |
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117 | public: |
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118 | // GENERATED START, DO NOT EDIT |
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119 | // GENERATED BY BasicTypes-gen.cc |
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120 | enum Kind { |
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121 | Bool, |
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122 | Char, |
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123 | SignedChar, |
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124 | UnsignedChar, |
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125 | ShortSignedInt, |
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126 | ShortUnsignedInt, |
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127 | SignedInt, |
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128 | UnsignedInt, |
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129 | LongSignedInt, |
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130 | LongUnsignedInt, |
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131 | LongLongSignedInt, |
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132 | LongLongUnsignedInt, |
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133 | SignedInt128, |
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134 | UnsignedInt128, |
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135 | uFloat16, |
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136 | uFloat16Complex, |
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137 | uFloat32, |
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138 | uFloat32Complex, |
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139 | Float, |
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140 | FloatComplex, |
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141 | uFloat32x, |
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142 | uFloat32xComplex, |
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143 | uFloat64, |
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144 | uFloat64Complex, |
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145 | Double, |
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146 | DoubleComplex, |
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147 | uFloat64x, |
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148 | uFloat64xComplex, |
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149 | uuFloat80, |
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150 | uFloat128, |
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151 | uFloat128Complex, |
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152 | uuFloat128, |
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153 | LongDouble, |
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154 | LongDoubleComplex, |
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155 | uFloat128x, |
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156 | uFloat128xComplex, |
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157 | NUMBER_OF_BASIC_TYPES |
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158 | } kind; |
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159 | // GENERATED END |
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160 | |
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161 | /// xxx -- MAX_INTEGER_TYPE should probably be in BasicTypes-gen.cc, rather than hardcoded here |
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162 | enum { MAX_INTEGER_TYPE = UnsignedInt128 }; |
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163 | |
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164 | /// string names of basic types; generated to match with Kind |
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165 | static const char *typeNames[]; |
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166 | |
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167 | BasicType( Kind k, CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ) |
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168 | : Type(q, std::move(as)), kind(k) {} |
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169 | |
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170 | /// Check if this type represents an integer type |
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171 | bool isInteger() const { return (unsigned)kind <= (unsigned)MAX_INTEGER_TYPE; } |
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172 | |
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173 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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174 | private: |
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175 | BasicType * clone() const override { return new BasicType{ *this }; } |
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176 | MUTATE_FRIEND |
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177 | }; |
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178 | |
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179 | /// Pointer/array variable length? |
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180 | enum LengthFlag { FixedLen, VariableLen }; |
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181 | |
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182 | /// Pointer/array static dimension? |
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183 | enum DimensionFlag { DynamicDim, StaticDim }; |
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184 | |
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185 | /// Pointer type `T*` |
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186 | class PointerType final : public Type { |
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187 | public: |
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188 | ptr<Type> base; |
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189 | |
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190 | // In C99, pointer types can be qualified in many ways, e.g. `int a[ static 3 ]` |
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191 | ptr<Expr> dimension; |
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192 | LengthFlag isVarLen = FixedLen; |
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193 | DimensionFlag isStatic = DynamicDim; |
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194 | |
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195 | PointerType( const Type * b, CV::Qualifiers q = {} ) : Type(q), base(b), dimension() {} |
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196 | PointerType( const Type * b, const Expr * d, LengthFlag vl, DimensionFlag s, |
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197 | CV::Qualifiers q = {} ) : Type(q), base(b), dimension(d), isVarLen(vl), isStatic(s) {} |
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198 | |
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199 | // true if this pointer is actually an array |
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200 | bool isArray() const { return isVarLen || isStatic || dimension; } |
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201 | |
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202 | bool isComplete() const override { return ! isVarLen; } |
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203 | |
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204 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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205 | private: |
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206 | PointerType * clone() const override { return new PointerType{ *this }; } |
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207 | MUTATE_FRIEND |
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208 | }; |
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209 | |
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210 | /// Array type `T[]` |
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211 | class ArrayType final : public Type { |
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212 | public: |
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213 | ptr<Type> base; |
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214 | ptr<Expr> dimension; |
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215 | LengthFlag isVarLen; |
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216 | DimensionFlag isStatic; |
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217 | |
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218 | ArrayType( const Type * b, const Expr * d, LengthFlag vl, DimensionFlag s, |
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219 | CV::Qualifiers q = {} ) : Type(q), base(b), dimension(d), isVarLen(vl), isStatic(s) {} |
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220 | |
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221 | // array types are complete if they have a dimension expression or are |
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222 | // VLAs ('*' in parameter declaration), and incomplete otherwise. |
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223 | // See 6.7.6.2 |
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224 | bool isComplete() const override { return dimension || isVarLen; } |
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225 | |
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226 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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227 | private: |
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228 | ArrayType * clone() const override { return new ArrayType{ *this }; } |
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229 | MUTATE_FRIEND |
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230 | }; |
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231 | |
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232 | /// Reference type `T&` |
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233 | class ReferenceType final : public Type { |
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234 | public: |
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235 | ptr<Type> base; |
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236 | |
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237 | ReferenceType( const Type * b, CV::Qualifiers q = {} ) : Type(q), base(b) {} |
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238 | |
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239 | unsigned referenceDepth() const override { return base->referenceDepth() + 1; } |
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240 | |
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241 | // Since reference types act like value types, their size is the size of the base. |
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242 | // This makes it simple to cast the empty tuple to a reference type, since casts that increase |
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243 | // the number of values are disallowed. |
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244 | unsigned size() const override { return base->size(); } |
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245 | |
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246 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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247 | private: |
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248 | ReferenceType * clone() const override { return new ReferenceType{ *this }; } |
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249 | MUTATE_FRIEND |
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250 | }; |
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251 | |
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252 | /// Qualified type `P.C` |
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253 | class QualifiedType final : public Type { |
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254 | public: |
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255 | ptr<Type> parent; |
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256 | ptr<Type> child; |
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257 | |
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258 | QualifiedType( const Type * p, const Type * c, CV::Qualifiers q = {} ) |
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259 | : Type(q), parent(p), child(c) {} |
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260 | |
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261 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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262 | private: |
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263 | QualifiedType * clone() const override { return new QualifiedType{ *this }; } |
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264 | MUTATE_FRIEND |
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265 | }; |
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266 | |
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267 | /// Function variable arguments flag |
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268 | enum ArgumentFlag { FixedArgs, VariableArgs }; |
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269 | |
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270 | /// Type of a function `[R1, R2](*)(P1, P2, P3)` |
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271 | class FunctionType final : public Type { |
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272 | public: |
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273 | using ForallList = std::vector<ptr<TypeInstType>>; |
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274 | using AssertionList = std::vector<ptr<VariableExpr>>; |
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275 | ForallList forall; |
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276 | AssertionList assertions; |
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277 | |
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278 | std::vector<ptr<Type>> returns; |
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279 | std::vector<ptr<Type>> params; |
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280 | |
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281 | /// Does the function accept a variable number of arguments following the arguments specified |
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282 | /// in the parameters list. |
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283 | /// This could be because of |
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284 | /// - an ellipsis in a prototype declaration |
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285 | /// - an unprototyped declaration |
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286 | ArgumentFlag isVarArgs; |
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287 | |
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288 | FunctionType( ArgumentFlag va = FixedArgs, CV::Qualifiers q = {} ) |
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289 | : Type(q), returns(), params(), isVarArgs(va) {} |
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290 | |
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291 | FunctionType( const FunctionType & o ) = default; |
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292 | |
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293 | /// true if either the parameters or return values contain a tttype |
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294 | bool isTtype() const; |
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295 | /// true if function parameters are unconstrained by prototype |
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296 | bool isUnprototyped() const { return isVarArgs && params.size() == 0; } |
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297 | |
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298 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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299 | private: |
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300 | FunctionType * clone() const override { return new FunctionType{ *this }; } |
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301 | MUTATE_FRIEND |
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302 | }; |
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303 | |
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304 | /// base class for types that refer to types declared elsewhere (aggregates and typedefs) |
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305 | class BaseInstType : public Type { |
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306 | public: |
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307 | std::vector<ptr<Expr>> params; |
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308 | std::string name; |
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309 | bool hoistType = false; |
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310 | |
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311 | BaseInstType( |
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312 | const std::string& n, CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ) |
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313 | : Type(q, std::move(as)), params(), name(n) {} |
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314 | |
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315 | BaseInstType( |
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316 | const std::string& n, std::vector<ptr<Expr>> && params, |
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317 | CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ) |
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318 | : Type(q, std::move(as)), params(std::move(params)), name(n) {} |
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319 | |
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320 | BaseInstType( const BaseInstType & o ) = default; |
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321 | |
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322 | /// Gets aggregate declaration this type refers to |
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323 | virtual const AggregateDecl * aggr() const = 0; |
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324 | /// Looks up member declarations with given name |
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325 | std::vector<readonly<Decl>> lookup( const std::string & name ) const; |
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326 | |
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327 | private: |
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328 | virtual BaseInstType * clone() const override = 0; |
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329 | MUTATE_FRIEND |
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330 | }; |
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331 | |
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332 | // Common implementation for the SUE instance types. Not to be used directly. |
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333 | template<typename decl_t> |
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334 | class SueInstType final : public BaseInstType { |
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335 | public: |
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336 | using base_type = decl_t; |
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337 | readonly<decl_t> base; |
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338 | |
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339 | SueInstType( |
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340 | const std::string& n, CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ) |
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341 | : BaseInstType( n, q, std::move(as) ), base() {} |
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342 | |
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343 | SueInstType( |
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344 | const base_type * b, CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ); |
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345 | |
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346 | SueInstType( |
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347 | const base_type * b, std::vector<ptr<Expr>> && params, |
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348 | CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ); |
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349 | |
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350 | bool isComplete() const override; |
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351 | |
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352 | const decl_t * aggr() const override { return base; } |
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353 | |
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354 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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355 | private: |
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356 | SueInstType<decl_t> * clone() const override { return new SueInstType<decl_t>{ *this }; } |
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357 | MUTATE_FRIEND |
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358 | }; |
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359 | |
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360 | /// An instance of a struct type. |
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361 | using StructInstType = SueInstType<StructDecl>; |
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362 | |
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363 | /// An instance of a union type. |
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364 | using UnionInstType = SueInstType<UnionDecl>; |
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365 | |
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366 | /// An instance of an enum type. |
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367 | using EnumInstType = SueInstType<EnumDecl>; |
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368 | |
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369 | /// An instance of a trait type. |
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370 | class TraitInstType final : public BaseInstType { |
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371 | public: |
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372 | readonly<TraitDecl> base; |
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373 | |
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374 | TraitInstType( |
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375 | const std::string& n, CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ) |
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376 | : BaseInstType( n, q, std::move(as) ), base() {} |
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377 | |
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378 | TraitInstType( |
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379 | const TraitDecl * b, CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ); |
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380 | |
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381 | // not meaningful for TraitInstType |
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382 | bool isComplete() const override { assert(false); } |
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383 | |
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384 | const TraitDecl * aggr() const override { return base; } |
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385 | |
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386 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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387 | private: |
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388 | TraitInstType * clone() const override { return new TraitInstType{ *this }; } |
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389 | MUTATE_FRIEND |
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390 | }; |
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391 | |
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392 | /// instance of named type alias (typedef or variable) |
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393 | class TypeInstType final : public BaseInstType { |
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394 | public: |
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395 | readonly<TypeDecl> base; |
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396 | // previously from renameTyVars; now directly use integer fields instead of synthesized strings |
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397 | // a nonzero value of formal_usage indicates a formal type (only used in function type) |
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398 | // a zero value of formal_usage indicates an actual type (referenced inside body of parametric structs and functions) |
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399 | TypeDecl::Kind kind; |
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400 | int formal_usage = 0; |
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401 | int expr_id = 0; |
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402 | |
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403 | // compact representation used for map lookups. |
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404 | struct TypeEnvKey { |
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405 | const TypeDecl * base = nullptr; |
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406 | int formal_usage = 0; |
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407 | int expr_id = 0; |
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408 | |
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409 | TypeEnvKey() = default; |
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410 | TypeEnvKey(const TypeDecl * base, int formal_usage = 0, int expr_id = 0): base(base), formal_usage(formal_usage), expr_id(expr_id) {} |
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411 | TypeEnvKey(const TypeInstType & inst): base(inst.base), formal_usage(inst.formal_usage), expr_id(inst.expr_id) {} |
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412 | std::string typeString() const { return std::string("_") + std::to_string(formal_usage) + "_" + std::to_string(expr_id) + "_" + base->name; } |
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413 | bool operator==(const TypeEnvKey & other) const { return base == other.base && formal_usage == other.formal_usage && expr_id == other.expr_id; } |
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414 | }; |
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415 | |
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416 | bool operator==(const TypeInstType & other) const { return base == other.base && formal_usage == other.formal_usage && expr_id == other.expr_id; } |
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417 | |
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418 | TypeInstType( |
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419 | const std::string& n, const TypeDecl * b, CV::Qualifiers q = {}, |
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420 | std::vector<ptr<Attribute>> && as = {} ) |
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421 | : BaseInstType( n, q, std::move(as) ), base( b ), kind( b->kind ) {} |
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422 | |
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423 | TypeInstType( const TypeDecl * b, |
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424 | CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ); |
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425 | |
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426 | TypeInstType( const std::string& n, TypeDecl::Kind k, CV::Qualifiers q = {}, |
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427 | std::vector<ptr<Attribute>> && as = {} ) |
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428 | : BaseInstType( n, q, std::move(as) ), base(), kind( k ) {} |
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429 | |
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430 | TypeInstType( const TypeInstType & o ) = default; |
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431 | |
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432 | TypeInstType( const TypeEnvKey & key ) |
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433 | : BaseInstType(key.base->name), base(key.base), kind(key.base->kind), formal_usage(key.formal_usage), expr_id(key.expr_id) {} |
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434 | |
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435 | /// sets `base`, updating `kind` correctly |
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436 | void set_base( const TypeDecl * ); |
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437 | |
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438 | bool isComplete() const override; |
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439 | |
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440 | // not meaningful for TypeInstType |
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441 | const AggregateDecl * aggr() const override { assert(false); } |
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442 | |
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443 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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444 | |
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445 | std::string typeString() const { |
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446 | if (formal_usage > 0) return std::string("_") + std::to_string(formal_usage) + "_" + std::to_string(expr_id) + "_" + name; |
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447 | else return name; |
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448 | } |
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449 | private: |
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450 | TypeInstType * clone() const override { return new TypeInstType{ *this }; } |
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451 | MUTATE_FRIEND |
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452 | }; |
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453 | |
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454 | /// tuple type e.g. `[int, char]` |
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455 | class TupleType final : public Type { |
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456 | public: |
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457 | std::vector<ptr<Type>> types; |
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458 | std::vector<ptr<Decl>> members; |
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459 | |
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460 | TupleType( std::vector<ptr<Type>> && ts, CV::Qualifiers q = {} ); |
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461 | |
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462 | // collection simulation |
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463 | using iterator = std::vector<ptr<Type>>::const_iterator; |
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464 | iterator begin() const { return types.begin(); } |
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465 | iterator end() const { return types.end(); } |
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466 | |
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467 | unsigned size() const override { return types.size(); } |
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468 | |
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469 | const Type * getComponent( unsigned i ) const override { |
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470 | assertf( i < size(), "TupleType::getComponent: index %d must be less than size %d", |
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471 | i, size() ); |
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472 | return *(begin()+i); |
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473 | } |
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474 | |
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475 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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476 | private: |
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477 | TupleType * clone() const override { return new TupleType{ *this }; } |
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478 | MUTATE_FRIEND |
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479 | }; |
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480 | |
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481 | /// Type of unresolved `typeof()` expression |
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482 | class TypeofType : public Type { |
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483 | public: |
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484 | ptr<Expr> expr; |
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485 | enum Kind { Typeof, Basetypeof } kind; |
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486 | |
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487 | TypeofType( const Expr * e, Kind k = Typeof, CV::Qualifiers q = {} ) |
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488 | : Type(q), expr(e), kind(k) {} |
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489 | |
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490 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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491 | private: |
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492 | TypeofType * clone() const override { return new TypeofType{ *this }; } |
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493 | MUTATE_FRIEND |
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494 | }; |
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495 | |
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496 | /// Virtual Table Type `vtable(T)` |
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497 | class VTableType final : public Type { |
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498 | public: |
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499 | ptr<Type> base; |
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500 | |
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501 | VTableType( const Type * b, CV::Qualifiers q = {} ) : Type(q), base(b) {} |
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502 | |
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503 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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504 | private: |
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505 | VTableType * clone() const override { return new VTableType{ *this }; } |
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506 | MUTATE_FRIEND |
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507 | }; |
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508 | |
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509 | /// GCC built-in varargs type |
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510 | class VarArgsType final : public Type { |
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511 | public: |
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512 | VarArgsType( CV::Qualifiers q = {} ) : Type( q ) {} |
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513 | |
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514 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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515 | private: |
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516 | VarArgsType * clone() const override { return new VarArgsType{ *this }; } |
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517 | MUTATE_FRIEND |
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518 | }; |
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519 | |
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520 | /// Type of zero constant `0` |
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521 | class ZeroType final : public Type { |
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522 | public: |
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523 | ZeroType( CV::Qualifiers q = {} ) : Type( q ) {} |
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524 | |
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525 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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526 | private: |
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527 | ZeroType * clone() const override { return new ZeroType{ *this }; } |
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528 | MUTATE_FRIEND |
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529 | }; |
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530 | |
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531 | /// Type of one constant `1` |
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532 | class OneType final : public Type { |
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533 | public: |
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534 | OneType( CV::Qualifiers q = {} ) : Type( q ) {} |
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535 | |
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536 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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537 | private: |
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538 | OneType * clone() const override { return new OneType{ *this }; } |
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539 | MUTATE_FRIEND |
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540 | }; |
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541 | |
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542 | /// Parent type for scope-qualified types at global scope |
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543 | class GlobalScopeType final : public Type { |
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544 | public: |
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545 | GlobalScopeType() : Type() {} |
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546 | |
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547 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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548 | private: |
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549 | GlobalScopeType * clone() const override { return new GlobalScopeType{ *this }; } |
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550 | MUTATE_FRIEND |
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551 | }; |
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552 | |
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553 | bool isUnboundType(const Type * type); |
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554 | |
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555 | } |
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556 | |
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557 | namespace std { |
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558 | template<> |
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559 | struct hash<typename ast::TypeInstType::TypeEnvKey> { |
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560 | size_t operator() (const ast::TypeInstType::TypeEnvKey & x) const { |
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561 | const size_t p = 1000007; |
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562 | size_t res = reinterpret_cast<size_t>(x.base); |
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563 | res = p * res + x.formal_usage; |
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564 | res = p * res + x.expr_id; |
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565 | return res; |
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566 | } |
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567 | }; |
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568 | } |
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569 | |
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570 | #undef MUTATE_FRIEND |
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571 | |
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572 | // Local Variables: // |
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573 | // tab-width: 4 // |
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574 | // mode: c++ // |
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575 | // compile-command: "make install" // |
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576 | // End: // |
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