blob: ebf634a6fff254fa7c6ca31f23fd11de6ecd2787 [file] [log] [blame]
#ifndef _H_HashMap
#define _H_HashMap
* Copyright 2008 Google Inc.
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
// Portability wrapper for hash maps, since they aren't part of the standard C++ library
#ifdef __GNUC__
#ifdef CXX_TR1
// future support
#include <unordered_map>
#define hash_map std::tr1::unordered_map
namespace HashFunctions = std;
#include <ext/hash_map>
using __gnu_cxx::hash_map;
// TODO(jat): surely this exists somewhere already?
// TODO(jat): portability issues
namespace __gnu_cxx {
using std::size_t;
template<> struct hash<std::string> {
size_t operator()(const std::string& str) const {
return hash<const char*>()(str.c_str());
namespace HashFunctions = __gnu_cxx;
#elif sun
// TODO(jat): find a hash_map implementation for Solaris
#include <map>
namespace HashFunctions = std;
#define hash_map map
using std::map;
// Try something reasonably standard, which works in Windows
#include <hash_map>
using stdext::hash_map;
namespace HashFunctions = stdext;