CMake/hash_fun.hxx.in

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