kicad/libs/kimath/include/hash_128.h

66 lines
1.9 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2024 Alex Shvartzkop <dudesuchamazing@gmail.com>
* Copyright (C) 2024 Kicad Developers, see AUTHORS.txt for contributors.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef HASH_128_H_
#define HASH_128_H_
#include <cstdint>
#include <iomanip>
#include <sstream>
/**
* A storage class for 128-bit hash value
*/
struct HASH_128
{
void Clear()
{
memset( Value64, 0, sizeof( Value64 ) ); //
}
bool operator==( const HASH_128& aOther ) const
{
return memcmp( Value64, aOther.Value64, sizeof( Value64 ) ) == 0;
}
std::string ToString() const
{
std::stringstream ss;
ss << std::hex << std::uppercase << std::setfill( '0' )
<< std::setw( 16 ) << Value64[0]
<< std::setw( 16 ) << Value64[1];
return ss.str();
}
public:
union
{
uint8_t Value8[16]{}; // Zero-initialized
uint32_t Value32[4];
uint64_t Value64[2];
};
};
#endif // HASH_128_H_