mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-12-22 11:39:35 +00:00
42 lines
1.1 KiB
C++
42 lines
1.1 KiB
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.
|
|
//
|
|
// No library is required when using these functinons.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_ADT_HASHEXTRAS_H
|
|
#define LLVM_ADT_HASHEXTRAS_H
|
|
|
|
#include "llvm/ADT/hash_map.h"
|
|
#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());
|
|
}
|
|
};
|
|
|
|
} // End namespace std
|
|
|
|
#endif
|