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// Copyright (c) 2006-2018 Maxim Khizhinsky
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE or copy at http://www.boost.org/LICENSE_1_0.txt)
#ifndef CDSUNIT_HASH_FUNC_H
#define CDSUNIT_HASH_FUNC_H
#include <cds/details/defs.h>
#if CDS_BUILD_BITS == 64
# include <cds_test/city.h>
#endif
namespace cds_test {
#if CDS_BUILD_BITS == 64
class city32 {
public:
typedef uint32_t hash_type;
typedef hash_type result_type;
hash_type operator()( void const * pBuf, size_t len ) const
{
return CityHash32( reinterpret_cast<char const *>( pBuf ), len );
}
hash_type operator()( std::string const& s ) const
{
return CityHash32( s.c_str(), s.length());
}
template <typename T>
hash_type operator()( T const& s ) const
{
return CityHash32( reinterpret_cast<char const *>( &s ), sizeof(s));
}
struct less
{
bool operator()( hash_type lhs, hash_type rhs ) const
{
return lhs < rhs;
}
};
};
class city64 {
public:
typedef uint64_t hash_type;
typedef hash_type result_type;
hash_type operator()( void const * pBuf, size_t len ) const
{
return CityHash64( reinterpret_cast<char const *>( pBuf ), len );
}
hash_type operator()( std::string const& s ) const
{
return CityHash64( s.c_str(), s.length());
}
template <typename T>
hash_type operator()( T const& s ) const
{
return CityHash64( reinterpret_cast<char const *>( &s ), sizeof(s));
}
struct less
{
bool operator()( hash_type lhs, hash_type rhs ) const
{
return lhs < rhs;
}
};
};
class city128 {
public:
typedef uint128 hash_type;
typedef hash_type result_type;
hash_type operator()( void const * pBuf, size_t len ) const
{
return CityHash128( reinterpret_cast<char const *>( pBuf ), len );
}
hash_type operator()( std::string const& s ) const
{
return CityHash128( s.c_str(), s.length());
}
template <typename T>
hash_type operator()( T const& s ) const
{
return CityHash128( reinterpret_cast<char const *>( &s ), sizeof(s));
}
struct less
{
bool operator()( hash_type const& lhs, hash_type const& rhs ) const
{
if ( lhs.first != rhs.first )
return lhs.second < rhs.second;
return lhs.first < rhs.first;
}
};
};
#endif // #if CDS_BUILD_BITS == 64
} // namespace cds_test
#endif // #ifndef CDSUNIT_HASH_FUNC_H
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