/usr/include/eiskaltdcpp/dcpp/HashValue.h is in libeiskaltdcpp-dev 2.2.9-4.1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | /*
* Copyright (C) 2001-2012 Jacek Sieka, arnetheduck on gmail point com
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include "FastAlloc.h"
#include "Encoder.h"
namespace dcpp {
template<class Hasher>
struct HashValue : FastAlloc<HashValue<Hasher> >{
static const size_t BITS = Hasher::BITS;
static const size_t BYTES = Hasher::BYTES;
HashValue() { }
explicit HashValue(const uint8_t* aData) { memcpy(data, aData, BYTES); }
explicit HashValue(const std::string& base32) { Encoder::fromBase32(base32.c_str(), data, BYTES); }
HashValue(const HashValue& rhs) { memcpy(data, rhs.data, BYTES); }
HashValue& operator=(const HashValue& rhs) { memcpy(data, rhs.data, BYTES); return *this; }
bool operator!=(const HashValue& rhs) const { return !(*this == rhs); }
bool operator==(const HashValue& rhs) const { return memcmp(data, rhs.data, BYTES) == 0; }
bool operator<(const HashValue& rhs) const { return memcmp(data, rhs.data, BYTES) < 0; }
std::string toBase32() const { return Encoder::toBase32(data, BYTES); }
std::string& toBase32(std::string& tmp) const { return Encoder::toBase32(data, BYTES, tmp); }
uint8_t data[BYTES];
};
} // namespace dcpp
namespace std {
template<typename T>
struct hash<dcpp::HashValue<T> > {
size_t operator()(const dcpp::HashValue<T>& rhs) const {
// RVO should handle this as efficiently as reinterpret_cast
size_t hvHash;
memcpy(&hvHash, rhs.data, sizeof(size_t));
return hvHash;
}
};
}
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