gcc/go/go-system.h

   1 // go-system.h -- Go frontend inclusion of gcc header files   -*- C++ -*-
   2 // Copyright (C) 2009-2017 Free Software Foundation, Inc.
   3
   4 // This file is part of GCC.
   5
   6 // GCC is free software; you can redistribute it and/or modify it under
   7 // the terms of the GNU General Public License as published by the Free
   8 // Software Foundation; either version 3, or (at your option) any later
   9 // version.
  10
  11 // GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 // FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 // for more details.
  15
  16 // You should have received a copy of the GNU General Public License
  17 // along with GCC; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 #ifndef GO_SYSTEM_H
  21 #define GO_SYSTEM_H
  22
  23 #include "config.h"
  24
  25 // These must be included before the #poison declarations in system.h.
  26
  27 #include <algorithm>
  28 #include <string>
  29 #include <list>
  30 #include <map>
  31 #include <set>
  32 #include <vector>
  33 #include <sstream>
  34
  35 #if defined(HAVE_UNORDERED_MAP)
  36
  37 # include <unordered_map>
  38 # include <unordered_set>
  39
  40 # define Unordered_map(KEYTYPE, VALTYPE) \
  41         std::unordered_map<KEYTYPE, VALTYPE>
  42
  43 # define Unordered_map_hash(KEYTYPE, VALTYPE, HASHFN, EQFN) \
  44         std::unordered_map<KEYTYPE, VALTYPE, HASHFN, EQFN>
  45
  46 # define Unordered_set(KEYTYPE) \
  47         std::unordered_set<KEYTYPE>
  48
  49 # define Unordered_set_hash(KEYTYPE, HASHFN, EQFN) \
  50         std::unordered_set<KEYTYPE, HASHFN, EQFN>
  51
  52 #elif defined(HAVE_TR1_UNORDERED_MAP)
  53
  54 # include <tr1/unordered_map>
  55 # include <tr1/unordered_set>
  56
  57 # define Unordered_map(KEYTYPE, VALTYPE) \
  58         std::tr1::unordered_map<KEYTYPE, VALTYPE>
  59
  60 # define Unordered_map_hash(KEYTYPE, VALTYPE, HASHFN, EQFN) \
  61         std::tr1::unordered_map<KEYTYPE, VALTYPE, HASHFN, EQFN>
  62
  63 # define Unordered_set(KEYTYPE) \
  64         std::tr1::unordered_set<KEYTYPE>
  65
  66 # define Unordered_set_hash(KEYTYPE, HASHFN, EQFN) \
  67         std::tr1::unordered_set<KEYTYPE, HASHFN, EQFN>
  68
  69 #elif defined(HAVE_EXT_HASH_MAP)
  70
  71 # include <ext/hash_map>
  72 # include <ext/hash_set>
  73
  74 # define Unordered_map(KEYTYPE, VALTYPE) \
  75         __gnu_cxx::hash_map<KEYTYPE, VALTYPE>
  76
  77 # define Unordered_map_hash(KEYTYPE, VALTYPE, HASHFN, EQFN) \
  78         __gnu_cxx::hash_map<KEYTYPE, VALTYPE, HASHFN, EQFN>
  79
  80 # define Unordered_set(KEYTYPE) \
  81         __gnu_cxx::hash_set<KEYTYPE>
  82
  83 # define Unordered_set_hash(KEYTYPE, HASHFN, EQFN) \
  84         __gnu_cxx::hash_set<KEYTYPE, HASHFN, EQFN>
  85
  86 // Provide hash functions for strings and pointers.
  87
  88 namespace __gnu_cxx
  89 {
  90
  91 template<>
  92 struct hash<std::string>
  93 {
  94   size_t
  95   operator()(std::string s) const
  96   { return __stl_hash_string(s.c_str()); }
  97 };
  98
  99 template<typename T>
 100 struct hash<T*>
 101 {
 102   size_t
 103   operator()(T* p) const
 104   { return reinterpret_cast<size_t>(p); }
 105 };
 106
 107 }
 108
 109 #else
 110
 111 # define Unordered_map(KEYTYPE, VALTYPE) \
 112         std::map<KEYTYPE, VALTYPE>
 113
 114 # define Unordered_set(KEYTYPE) \
 115         std::set<KEYTYPE>
 116
 117 // We could make this work by writing an adapter class which
 118 // implemented operator< in terms of the hash function.
 119 # error "requires hash table type"
 120
 121 #endif
 122
 123 // We don't really need iostream, but some versions of gmp.h include
 124 // it when compiled with C++, which means that we need to include it
 125 // before the macro magic of safe-ctype.h, which is included by
 126 // system.h.
 127 #include <iostream>
 128
 129 #include "system.h"
 130 #include "ansidecl.h"
 131 #include "coretypes.h"
 132
 133 #include "diagnostic-core.h"    /* For error_at and friends.  */
 134 #include "intl.h"               /* For _().  */
 135
 136 // When using gcc, go_assert is just gcc_assert.
 137 #define go_assert(EXPR) gcc_assert(EXPR)
 138
 139 // When using gcc, go_unreachable is just gcc_unreachable.
 140 #define go_unreachable() gcc_unreachable()
 141
 142 #endif // !defined(GO_SYSTEM_H)