/*

  * 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: