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// 'struct hash' from SGI -*- C++ -*-
// Copyright (C) 2001 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
/*
* Copyright (c) 1996-1998
* Silicon Graphics Computer Systems, Inc.
*
* Permission to use, copy, modify, distribute and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation. Silicon Graphics makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
*
* Copyright (c) 1994
* Hewlett-Packard Company
*
* Permission to use, copy, modify, distribute and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation. Hewlett-Packard Company makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
*/
/** @file stl_hash_fun.h
* This is an internal header file, included by other library headers.
* You should not attempt to use it directly.
*/
#ifndef _CPP_BITS_STL_HASH_FUN_H
#define _CPP_BITS_STL_HASH_FUN_H 1
#include <cstddef>
namespace __gnu_cxx
{
using std::size_t;
template <class _Key> struct hash { };
inline size_t __stl_hash_string(const char* __s)
{
unsigned long __h = 0;
for ( ; *__s; ++__s)
__h = 5*__h + *__s;
return size_t(__h);
}
template<> struct hash<char*>
{
size_t operator()(const char* __s) const { return __stl_hash_string(__s); }
};
template<> struct hash<const char*>
{
size_t operator()(const char* __s) const { return __stl_hash_string(__s); }
};
template<> struct hash<char> {
size_t operator()(char __x) const { return __x; }
};
template<> struct hash<unsigned char> {
size_t operator()(unsigned char __x) const { return __x; }
};
template<> struct hash<signed char> {
size_t operator()(unsigned char __x) const { return __x; }
};
template<> struct hash<short> {
size_t operator()(short __x) const { return __x; }
};
template<> struct hash<unsigned short> {
size_t operator()(unsigned short __x) const { return __x; }
};
template<> struct hash<int> {
size_t operator()(int __x) const { return __x; }
};
template<> struct hash<unsigned int> {
size_t operator()(unsigned int __x) const { return __x; }
};
template<> struct hash<long> {
size_t operator()(long __x) const { return __x; }
};
template<> struct hash<unsigned long> {
size_t operator()(unsigned long __x) const { return __x; }
};
} // namespace __gnu_cxx
#endif /* _CPP_BITS_STL_HASH_FUN_H */
// Local Variables:
// mode:C++
// End:
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