-//===-- HashExtras.h - Useful functions for STL hash containers -*- C++ -*-===//
+//===-- llvm/ADT/HashExtras.h - Useful functions for STL hash ---*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
//
// This file contains some templates that are useful if you are working with the
// STL Hashed containers.
//
//===----------------------------------------------------------------------===//
-#ifndef SUPPORT_HASHEXTRAS_H
-#define SUPPORT_HASHEXTRAS_H
+#ifndef LLVM_ADT_HASHEXTRAS_H
+#define LLVM_ADT_HASHEXTRAS_H
-#include "Support/hash_map"
#include <string>
// Cannot specialize hash template from outside of the std namespace.
namespace HASH_NAMESPACE {
+// Provide a hash function for arbitrary pointers...
+template <class T> struct hash<T *> {
+ inline size_t operator()(const T *Val) const {
+ return reinterpret_cast<size_t>(Val);
+ }
+};
+
template <> struct hash<std::string> {
size_t operator()(std::string const &str) const {
return hash<char const *>()(str.c_str());
}
};
-// Provide a hash function for arbitrary pointers...
-template <class T> struct hash<T *> {
- inline size_t operator()(const T *Val) const { return (size_t)Val; }
-};
-
} // End namespace std
#endif