llvm/include/Support/HashExtras.h
Chris Lattner cee8f9ae67 Create a new #include "Support/..." directory structure to move things
from "llvm/Support/..." that are not llvm dependant.

Move files and fix #includes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1400 91177308-0d34-0410-b5e6-96231b3b80d8
2001-11-27 00:03:19 +00:00

28 lines
750 B
C++

//===-- HashExtras.h - Useful functions for STL hash containers --*- C++ -*--=//
//
// 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_SUPPORT_HASHEXTRAS_H
#define LLVM_SUPPORT_HASHEXTRAS_H
#include <string>
#include <hash_map>
template <> struct hash<string> {
size_t operator()(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; }
};
#endif