/*

 * 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.

 *

 */

/* NOTE: This is an internal header file, included by other STL headers.

 *   You should not attempt to use it directly.

 */

#ifndef _STLP_HASH_FUN_H

#define _STLP_HASH_FUN_H

# ifndef _STLP_CSTDDEF

#  include <cstddef>

# endif

_STLP_BEGIN_NAMESPACE

template <class _Key> struct hash { };

inline size_t __stl_hash_string(const char* __s)

{

  _STLP_FIX_LITERAL_BUG(__s)

  unsigned long __h = 0; 

  for ( ; *__s; ++__s)

    __h = 5*__h + *__s;

  return size_t(__h);

}

_STLP_TEMPLATE_NULL struct hash<char*>

{

  size_t operator()(const char* __s) const { _STLP_FIX_LITERAL_BUG(__s) return __stl_hash_string(__s); }

};

_STLP_TEMPLATE_NULL struct hash<const char*>

{

  size_t operator()(const char* __s) const { _STLP_FIX_LITERAL_BUG(__s) return __stl_hash_string(__s); }

};

_STLP_TEMPLATE_NULL struct hash<char> {

  size_t operator()(char __x) const { return __x; }

};

_STLP_TEMPLATE_NULL struct hash<unsigned char> {

  size_t operator()(unsigned char __x) const { return __x; }

};

#ifndef _STLP_NO_SIGNED_BUILTINS

_STLP_TEMPLATE_NULL struct hash<signed char> {

  size_t operator()(unsigned char __x) const { return __x; }

};

#endif

_STLP_TEMPLATE_NULL struct hash<short> {

  size_t operator()(short __x) const { return __x; }

};

_STLP_TEMPLATE_NULL struct hash<unsigned short> {

  size_t operator()(unsigned short __x) const { return __x; }

};

_STLP_TEMPLATE_NULL struct hash<int> {

  size_t operator()(int __x) const { return __x; }

};

_STLP_TEMPLATE_NULL struct hash<unsigned int> {

  size_t operator()(unsigned int __x) const { return __x; }

};

_STLP_TEMPLATE_NULL struct hash<long> {

  size_t operator()(long __x) const { return __x; }

};

_STLP_TEMPLATE_NULL struct hash<unsigned long> {

  size_t operator()(unsigned long __x) const { return __x; }

};

# if defined (_STLP_LONG_LONG)

_STLP_TEMPLATE_NULL struct hash<_STLP_LONG_LONG> {

  size_t operator()(long x) const { return x; }

};

_STLP_TEMPLATE_NULL struct hash<unsigned _STLP_LONG_LONG> {

  size_t operator()(unsigned long x) const { return x; }

};

# endif

_STLP_END_NAMESPACE

#endif /* _STLP_HASH_FUN_H */

// Local Variables:

// mode:C++

// End: