94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
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/*
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* Copyright (c) 1996-1998
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* Silicon Graphics Computer Systems, Inc.
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Silicon Graphics makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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*
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* Copyright (c) 1994
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* Hewlett-Packard Company
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Hewlett-Packard Company makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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*/
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/* NOTE: This is an internal header file, included by other STL headers.
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* You should not attempt to use it directly.
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*/
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#ifndef _CPP_BITS_STL_HASH_FUN_H
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#define _CPP_BITS_STL_HASH_FUN_H 1
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#include <bits/std_cstddef.h>
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__STL_BEGIN_NAMESPACE
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template <class _Key> struct hash { };
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inline size_t __stl_hash_string(const char* __s)
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{
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unsigned long __h = 0;
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for ( ; *__s; ++__s)
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__h = 5*__h + *__s;
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return size_t(__h);
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}
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__STL_TEMPLATE_NULL struct hash<char*>
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{
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size_t operator()(const char* __s) const { return __stl_hash_string(__s); }
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};
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__STL_TEMPLATE_NULL struct hash<const char*>
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{
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size_t operator()(const char* __s) const { return __stl_hash_string(__s); }
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};
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__STL_TEMPLATE_NULL struct hash<char> {
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size_t operator()(char __x) const { return __x; }
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};
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__STL_TEMPLATE_NULL struct hash<unsigned char> {
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size_t operator()(unsigned char __x) const { return __x; }
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};
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__STL_TEMPLATE_NULL struct hash<signed char> {
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size_t operator()(unsigned char __x) const { return __x; }
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};
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__STL_TEMPLATE_NULL struct hash<short> {
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size_t operator()(short __x) const { return __x; }
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};
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__STL_TEMPLATE_NULL struct hash<unsigned short> {
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size_t operator()(unsigned short __x) const { return __x; }
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};
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__STL_TEMPLATE_NULL struct hash<int> {
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size_t operator()(int __x) const { return __x; }
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};
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__STL_TEMPLATE_NULL struct hash<unsigned int> {
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size_t operator()(unsigned int __x) const { return __x; }
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};
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__STL_TEMPLATE_NULL struct hash<long> {
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size_t operator()(long __x) const { return __x; }
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};
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__STL_TEMPLATE_NULL struct hash<unsigned long> {
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size_t operator()(unsigned long __x) const { return __x; }
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};
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__STL_END_NAMESPACE
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#endif /* _CPP_BITS_STL_HASH_FUN_H */
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// Local Variables:
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// mode:C++
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// End:
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