| //===-- Support/hash_map - "Portable" wrapper around hash_map ---*- C++ -*-===// | |
| // | |
| // The LLVM Compiler Infrastructure | |
| // | |
| // This file was developed by the LLVM research group and is distributed under | |
| // the University of Illinois Open Source License. See LICENSE.TXT for details. | |
| // | |
| //===----------------------------------------------------------------------===// | |
| // | |
| // 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 |