150 lines
4.0 KiB
C++
150 lines
4.0 KiB
C++
/*============================================================================
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KWSys - Kitware System Library
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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/*
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* Copyright (c) 1996
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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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#ifndef @KWSYS_NAMESPACE@_hash_fun_hxx
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#define @KWSYS_NAMESPACE@_hash_fun_hxx
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#include <@KWSYS_NAMESPACE@/Configure.hxx>
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#include <stddef.h> // size_t
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#include <string>
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namespace @KWSYS_NAMESPACE@
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{
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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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template <>
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struct hash<char*> {
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size_t operator()(const char* __s) const { return _stl_hash_string(__s); }
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};
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template <>
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struct hash<const char*> {
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size_t operator()(const char* __s) const { return _stl_hash_string(__s); }
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};
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template <>
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struct hash<std::string> {
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size_t operator()(const std::string & __s) const { return _stl_hash_string(__s.c_str()); }
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};
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#if !defined(__BORLANDC__)
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template <>
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struct hash<const std::string> {
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size_t operator()(const std::string & __s) const { return _stl_hash_string(__s.c_str()); }
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};
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#endif
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template <>
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struct hash<char> {
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size_t operator()(char __x) const { return __x; }
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};
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template <>
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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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template <>
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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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template <>
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struct hash<short> {
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size_t operator()(short __x) const { return __x; }
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};
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template <>
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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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template <>
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struct hash<int> {
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size_t operator()(int __x) const { return __x; }
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};
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template <>
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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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template <>
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struct hash<long> {
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size_t operator()(long __x) const { return __x; }
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};
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template <>
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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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// use long long or __int64
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#if @KWSYS_USE_LONG_LONG@
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template <>
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struct hash<long long> {
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size_t operator()(long long __x) const { return __x; }
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};
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template <>
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struct hash<unsigned long long> {
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size_t operator()(unsigned long long __x) const { return __x; }
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};
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#elif @KWSYS_USE___INT64@
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template <>
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struct hash<__int64> {
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size_t operator()(__int64 __x) const { return __x; }
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};
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template <>
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struct hash<unsigned __int64> {
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size_t operator()(unsigned __int64 __x) const { return __x; }
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};
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#endif // use long long or __int64
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} // namespace @KWSYS_NAMESPACE@
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#endif
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