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//===-- Support/hash_map - "Portable" wrapper around hash_map ---*- C++ -*-===//
// vim:ft=cpp
//
// This file provides a wrapper around the mysterious <hash_map> header file
// that seems to move around between GCC releases into and out of namespaces at
// will. #including this header will cause hash_map to be available in the
// global namespace.
//
//===----------------------------------------------------------------------===//
#ifndef SUPPORT_HASH_MAP
#define SUPPORT_HASH_MAP
// Compiler Support Matrix
//
// Version Namespace Header File
// 2.95.x :: hash_map
// 3.0.4 std ext/hash_map
// 3.1 __gnu_cxx ext/hash_map
//
#include "Config/config.h"
#ifdef HAVE_GNU_EXT_HASH_MAP
// This is for GCC-3.1+ which puts hash in ext/hash_map
#include <ext/hash_map>
#define HASH_NAMESPACE __gnu_cxx
#else
// This is for GCC-3.0.x which puts hashmap in the `ext' directory.
#ifdef HAVE_STD_EXT_HASH_MAP
#include <ext/hash_map>
#define HASH_NAMESPACE std
#else
// This handles older, pre-3.0 GCC which do not have the extentions in the `ext'
// directory, and ignore the `std' namespace.
#include <hash_map>
#define HASH_NAMESPACE std
#endif
#endif
using HASH_NAMESPACE::hash_map;
using HASH_NAMESPACE::hash_multimap;
using HASH_NAMESPACE::hash;
// Include vector because ext/hash_map includes stl_vector.h and leaves
// out specializations like stl_bvector.h, causing link conflicts.
#include <vector>
#include <Support/HashExtras.h>
#endif
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