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// go-system.h -- Go frontend inclusion of gcc header files   -*- C++ -*-
// Copyright (C) 2009, 2010, 2011 Free Software Foundation, Inc.
 
// This file is part of GCC.
 
// GCC is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 3, or (at your option) any later
// version.
 
// GCC is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
// for more details.
 
// You should have received a copy of the GNU General Public License
// along with GCC; see the file COPYING3.  If not see
// <http://www.gnu.org/licenses/>.
 
#ifndef GO_SYSTEM_H
#define GO_SYSTEM_H
 
#include "config.h"
 
// These must be included before the #poison declarations in system.h.
 
#include <algorithm>
#include <string>
#include <list>
#include <map>
#include <set>
#include <vector>
 
#if defined(HAVE_UNORDERED_MAP)
 
# include <unordered_map>
# include <unordered_set>
 
# define Unordered_map(KEYTYPE, VALTYPE) \
	std::unordered_map<KEYTYPE, VALTYPE>
 
# define Unordered_map_hash(KEYTYPE, VALTYPE, HASHFN, EQFN) \
	std::unordered_map<KEYTYPE, VALTYPE, HASHFN, EQFN>
 
# define Unordered_set(KEYTYPE) \
	std::unordered_set<KEYTYPE>
 
# define Unordered_set_hash(KEYTYPE, HASHFN, EQFN) \
	std::unordered_set<KEYTYPE, HASHFN, EQFN>
 
#elif defined(HAVE_TR1_UNORDERED_MAP)
 
# include <tr1/unordered_map>
# include <tr1/unordered_set>
 
# define Unordered_map(KEYTYPE, VALTYPE) \
	std::tr1::unordered_map<KEYTYPE, VALTYPE>
 
# define Unordered_map_hash(KEYTYPE, VALTYPE, HASHFN, EQFN) \
	std::tr1::unordered_map<KEYTYPE, VALTYPE, HASHFN, EQFN>
 
# define Unordered_set(KEYTYPE) \
	std::tr1::unordered_set<KEYTYPE>
 
# define Unordered_set_hash(KEYTYPE, HASHFN, EQFN) \
	std::tr1::unordered_set<KEYTYPE, HASHFN, EQFN>
 
#elif defined(HAVE_EXT_HASH_MAP)
 
# include <ext/hash_map>
# include <ext/hash_set>
 
# define Unordered_map(KEYTYPE, VALTYPE) \
	__gnu_cxx::hash_map<KEYTYPE, VALTYPE>
 
# define Unordered_map_hash(KEYTYPE, VALTYPE, HASHFN, EQFN) \
	__gnu_cxx::hash_map<KEYTYPE, VALTYPE, HASHFN, EQFN>
 
# define Unordered_set(KEYTYPE) \
	__gnu_cxx::hash_set<KEYTYPE>
 
# define Unordered_set_hash(KEYTYPE, HASHFN, EQFN) \
	__gnu_cxx::hash_set<KEYTYPE, HASHFN, EQFN>
 
// Provide hash functions for strings and pointers.
 
namespace __gnu_cxx
{
 
template<>
struct hash<std::string>
{
  size_t
  operator()(std::string s) const
  { return __stl_hash_string(s.c_str()); }
};
 
template<typename T>
struct hash<T*>
{
  size_t
  operator()(T* p) const
  { return reinterpret_cast<size_t>(p); }
};
 
}
 
#else
 
# define Unordered_map(KEYTYPE, VALTYPE) \
	std::map<KEYTYPE, VALTYPE>
 
# define Unordered_set(KEYTYPE) \
	std::set<KEYTYPE>
 
// We could make this work by writing an adapter class which
// implemented operator< in terms of the hash function.
# error "requires hash table type"
 
#endif
 
// We don't really need iostream, but some versions of gmp.h include
// it when compiled with C++, which means that we need to include it
// before the macro magic of safe-ctype.h, which is included by
// system.h.
#include <iostream>
 
// Some versions of gmp.h assume that #include <iostream> will define
// std::FILE.  This is not true with libstdc++ 4.3 and later.  This is
// fixed in GMP 4.3, but at this point we don't know which version of
// GMP is in use.  Since the top level configure script accepts GMP
// 4.2, at least for now we #include <cstdio> to ensure that GMP 4.2
// will work.  FIXME: This can be removed when we require GMP 4.3 or
// later.
#include <cstdio>
 
#ifndef ENABLE_BUILD_WITH_CXX
extern "C"
{
#endif
 
#include "system.h"
#include "ansidecl.h"
#include "coretypes.h"
 
#include "diagnostic-core.h"	/* For error_at and friends.  */
#include "input.h"		/* For source_location.  */
#include "intl.h"		/* For _().  */
 
#ifndef ENABLE_BUILD_WITH_CXX
} // End extern "C"
#endif
 
// When using gcc, go_assert is just gcc_assert.
#define go_assert(EXPR) gcc_assert(EXPR)
 
// When using gcc, go_unreachable is just gcc_unreachable.
#define go_unreachable() gcc_unreachable()
 
#endif // !defined(GO_SYSTEM_H)