gcc/go/go-system.h

   1 // go-system.h -- Go frontend inclusion of gcc header files   -*- C++ -*-
   2 // Copyright (C) 2009, 2010, 2011 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
  34 #if defined(HAVE_UNORDERED_MAP)
  35
  36 # include <unordered_map>
  37 # include <unordered_set>
  38
  39 # define Unordered_map(KEYTYPE, VALTYPE) \
  40         std::unordered_map<KEYTYPE, VALTYPE>
  41
  42 # define Unordered_map_hash(KEYTYPE, VALTYPE, HASHFN, EQFN) \
  43         std::unordered_map<KEYTYPE, VALTYPE, HASHFN, EQFN>
  44
  45 # define Unordered_set(KEYTYPE) \
  46         std::unordered_set<KEYTYPE>
  47
  48 # define Unordered_set_hash(KEYTYPE, HASHFN, EQFN) \
  49         std::unordered_set<KEYTYPE, HASHFN, EQFN>
  50
  51 #elif defined(HAVE_TR1_UNORDERED_MAP)
  52
  53 # include <tr1/unordered_map>
  54 # include <tr1/unordered_set>
  55
  56 # define Unordered_map(KEYTYPE, VALTYPE) \
  57         std::tr1::unordered_map<KEYTYPE, VALTYPE>
  58
  59 # define Unordered_map_hash(KEYTYPE, VALTYPE, HASHFN, EQFN) \
  60         std::tr1::unordered_map<KEYTYPE, VALTYPE, HASHFN, EQFN>
  61
  62 # define Unordered_set(KEYTYPE) \
  63         std::tr1::unordered_set<KEYTYPE>
  64
  65 # define Unordered_set_hash(KEYTYPE, HASHFN, EQFN) \
  66         std::tr1::unordered_set<KEYTYPE, HASHFN, EQFN>
  67
  68 #elif defined(HAVE_EXT_HASH_MAP)
  69
  70 # include <ext/hash_map>
  71 # include <ext/hash_set>
  72
  73 # define Unordered_map(KEYTYPE, VALTYPE) \
  74         __gnu_cxx::hash_map<KEYTYPE, VALTYPE>
  75
  76 # define Unordered_map_hash(KEYTYPE, VALTYPE, HASHFN, EQFN) \
  77         __gnu_cxx::hash_map<KEYTYPE, VALTYPE, HASHFN, EQFN>
  78
  79 # define Unordered_set(KEYTYPE) \
  80         __gnu_cxx::hash_set<KEYTYPE>
  81
  82 # define Unordered_set_hash(KEYTYPE, HASHFN, EQFN) \
  83         __gnu_cxx::hash_set<KEYTYPE, HASHFN, EQFN>
  84
  85 // Provide hash functions for strings and pointers.
  86
  87 namespace __gnu_cxx
  88 {
  89
  90 template<>
  91 struct hash<std::string>
  92 {
  93   size_t
  94   operator()(std::string s) const
  95   { return __stl_hash_string(s.c_str()); }
  96 };
  97
  98 template<typename T>
  99 struct hash<T*>
 100 {
 101   size_t
 102   operator()(T* p) const
 103   { return reinterpret_cast<size_t>(p); }
 104 };
 105
 106 }
 107
 108 #else
 109
 110 # define Unordered_map(KEYTYPE, VALTYPE) \
 111         std::map<KEYTYPE, VALTYPE>
 112
 113 # define Unordered_set(KEYTYPE) \
 114         std::set<KEYTYPE>
 115
 116 // We could make this work by writing an adapter class which
 117 // implemented operator< in terms of the hash function.
 118 # error "requires hash table type"
 119
 120 #endif
 121
 122 // We don't really need iostream, but some versions of gmp.h include
 123 // it when compiled with C++, which means that we need to include it
 124 // before the macro magic of safe-ctype.h, which is included by
 125 // system.h.
 126 #include <iostream>
 127
 128 // Some versions of gmp.h assume that #include <iostream> will define
 129 // std::FILE.  This is not true with libstdc++ 4.3 and later.  This is
 130 // fixed in GMP 4.3, but at this point we don't know which version of
 131 // GMP is in use.  Since the top level configure script accepts GMP
 132 // 4.2, at least for now we #include <cstdio> to ensure that GMP 4.2
 133 // will work.  FIXME: This can be removed when we require GMP 4.3 or
 134 // later.
 135 #include <cstdio>
 136
 137 #ifndef ENABLE_BUILD_WITH_CXX
 138 extern "C"
 139 {
 140 #endif
 141
 142 #include "system.h"
 143 #include "ansidecl.h"
 144 #include "coretypes.h"
 145
 146 #include "diagnostic-core.h"    /* For error_at and friends.  */
 147 #include "input.h"              /* For source_location.  */
 148 #include "intl.h"               /* For _().  */
 149
 150 #ifndef ENABLE_BUILD_WITH_CXX
 151 } // End extern "C"
 152 #endif
 153
 154 // When using gcc, go_assert is just gcc_assert.
 155 #define go_assert(EXPR) gcc_assert(EXPR)
 156
 157 // When using gcc, go_unreachable is just gcc_unreachable.
 158 #define go_unreachable() gcc_unreachable()
 159
 160 #endif // !defined(GO_SYSTEM_H)