84 lines
1.7 KiB
C
84 lines
1.7 KiB
C
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/*
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Copyright (C) 2015 Srivats P.
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This file is part of "Ostinato"
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This is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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#ifndef _UINT128_H
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#define _UINT128_H
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#include <QtGlobal>
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#include <qendian.h>
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class UInt128
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{
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public:
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UInt128();
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UInt128(quint64 hi, quint64 lo);
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quint8* toArray() const;
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UInt128 operator+(const UInt128 &other);
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UInt128 operator*(const uint &other);
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private:
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quint64 hi_;
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quint64 lo_;
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quint8 array_[16];
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};
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inline UInt128::UInt128()
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{
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// Do nothing - value will be garbage like any other uint
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}
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inline UInt128::UInt128(quint64 hi, quint64 lo)
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{
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hi_ = hi;
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lo_ = lo;
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}
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inline quint8* UInt128::toArray() const
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{
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*(quint64*)(array_ + 0) = qToBigEndian<quint64>(hi_);
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*(quint64*)(array_ + 8) = qToBigEndian<quint64>(lo_);
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return (quint8*)array_;
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}
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inline UInt128 UInt128::operator+(const UInt128 &other)
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{
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UInt128 sum;
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sum.lo_ = lo_ + other.lo_;
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sum.hi_ = hi_ + other.hi_ + (sum.lo_ < lo_);
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return sum;
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}
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inline UInt128 UInt128::operator*(const uint &other)
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{
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UInt128 product;
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// FIXME
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product.hi_ = 0;
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product.lo_ = lo_ * other;
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return product;
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}
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#endif
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