/**
 * MaNGOS is a full featured server for World of Warcraft, supporting
 * the following clients: 1.12.x, 2.4.3, 3.3.5a, 4.3.4a and 5.4.8
 *
 * Copyright (C) 2005-2017  MaNGOS project <https://getmangos.eu>
 *
 * This program 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 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * World of Warcraft, and all World of Warcraft or Warcraft art, images,
 * and lore are copyrighted by Blizzard Entertainment, Inc.
 */

#ifndef MANGOS_UNORDERED_MAP_H
#define MANGOS_UNORDERED_MAP_H

#include "Platform/CompilerDefs.h"
#include "Platform/Define.h"

#if defined(__APPLE__)
#include <AvailabilityMacros.h>
#endif

#if COMPILER == COMPILER_CLANG
#  if defined(__APPLE__) && defined(MAC_OS_X_VERSION_10_9) && MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_9
#    include <unordered_map>
#    include <unordered_set>
#  else
#    include <tr1/unordered_map>
#    include <tr1/unordered_set>
#  endif
#elif COMPILER == COMPILER_INTEL
#  include <ext/hash_map>
#  include <ext/hash_set>
#elif COMPILER == COMPILER_GNU && (__GNUC__ > 4 || __GNUC__ == 4 && __GNUC_MINOR__ >= 3)
#  include <tr1/unordered_map>
#  include <tr1/unordered_set>
#elif COMPILER == COMPILER_GNU && __GNUC__ >= 3 && (__GNUC__ < 4 || __GNUC__ == 4 && __GNUC_MINOR__ < 3)
#  include <ext/hash_map>
#  include <ext/hash_set>
#elif COMPILER == COMPILER_MICROSOFT && (_MSC_VER > 1500 || _MSC_VER == 1500 && _HAS_TR1)   // VC9.0 SP1 and later
#  include <unordered_map>
#  include <unordered_set>
#else
#  include <hash_map>
#  include <hash_set>
#endif

#ifdef _STLPORT_VERSION
#  define UNORDERED_MAP std::hash_map
#  define UNORDERED_SET std::hash_set
#  define HASH_NAMESPACE_START namespace std {
#  define HASH_NAMESPACE_END }
using std::hash_map;
using std::hash_set;
#elif COMPILER == COMPILER_MICROSOFT && _MSC_VER >= 1600    // VS100
#  define UNORDERED_MAP std::unordered_map
#  define UNORDERED_SET std::unordered_set
#  define HASH_NAMESPACE_START namespace std {
#  define HASH_NAMESPACE_END }
#elif COMPILER == COMPILER_MICROSOFT && _MSC_VER >= 1500 && _HAS_TR1
#  define UNORDERED_MAP std::tr1::unordered_map
#  define UNORDERED_SET std::tr1::unordered_set
#  define HASH_NAMESPACE_START namespace std { namespace tr1 {
#  define HASH_NAMESPACE_END } }
#elif COMPILER == COMPILER_MICROSOFT && _MSC_VER >= 1300
#  define UNORDERED_MAP stdext::hash_map
#  define UNORDERED_SET stdext::hash_set
#  define HASH_NAMESPACE_START namespace stdext {
#  define HASH_NAMESPACE_END }
using stdext::hash_map;
using stdext::hash_set;

#if !_HAS_TRADITIONAL_STL

// can be not used by some platforms, so provide fake forward
HASH_NAMESPACE_START

template<class K>
class hash
{
    public:
        size_t operator()(K const&);
};

HASH_NAMESPACE_END

#endif

#elif COMPILER == COMPILER_INTEL
#  define UNORDERED_MAP std::hash_map
#  define UNORDERED_SET std::hash_set
#  define HASH_NAMESPACE_START namespace std {
#  define HASH_NAMESPACE_END }
using std::hash_map;
using std::hash_set;
#elif COMPILER == COMPILER_CLANG && defined(__FreeBSD__)
#  include <osreldate.h>
#  define UNORDERED_MAP std::unordered_map
#  define UNORDERED_SET std::unordered_set
#  if __FreeBSD_version >= 1001000
#    define HASH_NAMESPACE_START namespace std {
#    define HASH_NAMESPACE_END }
#  else
#    define HASH_NAMESPACE_START namespace std { namespace __1 {
#    define HASH_NAMESPACE_END } }
#  endif
#elif COMPILER == COMPILER_CLANG
#  if defined(__APPLE__) && defined(MAC_OS_X_VERSION_10_9) && MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_9
#    define UNORDERED_MAP std::unordered_map
#    define UNORDERED_SET std::unordered_set
#    define HASH_NAMESPACE_START namespace std {
#    define HASH_NAMESPACE_END }
#  else
#    define UNORDERED_MAP std::tr1::unordered_map
#    define UNORDERED_SET std::tr1::unordered_set
#    define HASH_NAMESPACE_START namespace std { namespace tr1 {
#    define HASH_NAMESPACE_END } }
#  endif
#elif COMPILER == COMPILER_GNU && (__GNUC__ > 4 || __GNUC__ == 4 && __GNUC_MINOR__ >= 3)
#  if defined(__APPLE__) && defined(MAC_OS_X_VERSION_10_9) && MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_9
#    define UNORDERED_MAP std::unordered_map
#    define UNORDERED_SET std::unordered_set
#    define HASH_NAMESPACE_START namespace std {
#    define HASH_NAMESPACE_END }
#  else
#    define UNORDERED_MAP std::tr1::unordered_map
#    define UNORDERED_SET std::tr1::unordered_set
#    define HASH_NAMESPACE_START namespace std { namespace tr1 {
#    define HASH_NAMESPACE_END } }
#  endif
#elif COMPILER == COMPILER_GNU && __GNUC__ >= 3 && (__GNUC__ < 4 || __GNUC__ == 4 && __GNUC_MINOR__ < 3)
#  define UNORDERED_MAP __gnu_cxx::hash_map
#  define UNORDERED_SET __gnu_cxx::hash_set
#  define HASH_NAMESPACE_START namespace __gnu_cxx {
#  define HASH_NAMESPACE_END }

HASH_NAMESPACE_START

template<>
class hash<unsigned long long>
{
    public:
        size_t operator()(const unsigned long long& __x) const { return (size_t)__x; }
};

template<typename T>
class hash<T*>
{
    public:
        size_t operator()(T* const& __x) const { return (size_t)__x; }
};

template<> struct hash<std::string>
{
    size_t operator()(const std::string& __x) const
    {
        return hash<const char*>()(__x.c_str());
    }
};

HASH_NAMESPACE_END

#else
#  define UNORDERED_MAP std::hash_map
#  define UNORDERED_SET std::hash_set
#  define HASH_NAMESPACE_START namespace std {
#  define HASH_NAMESPACE_END }
using std::hash_map;
using std::hash_set;
#endif

#endif