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96 lines
2.7 KiB
96 lines
2.7 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum 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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cpp-ethereum 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 cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file QBigInt.cpp
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* @author Yann yann@ethdev.com
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* @date 2015
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*/
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#include <boost/variant/multivisitors.hpp>
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#include <boost/variant.hpp>
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#include <libethcore/CommonJS.h>
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#include "QBigInt.h"
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using namespace dev;
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using namespace dev::mix;
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QString QBigInt::value() const
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{
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std::ostringstream s;
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s << m_internalValue;
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return QString::fromStdString(s.str());
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}
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QBigInt* QBigInt::subtract(QBigInt* const& _value) const
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{
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BigIntVariant toSubtract = _value->internalValue();
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return new QBigInt(boost::apply_visitor(mix::subtract(), m_internalValue, toSubtract));
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}
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QBigInt* QBigInt::add(QBigInt* const& _value) const
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{
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BigIntVariant toAdd = _value->internalValue();
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return new QBigInt(boost::apply_visitor(mix::add(), m_internalValue, toAdd));
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}
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QBigInt* QBigInt::multiply(QBigInt* const& _value) const
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{
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BigIntVariant toMultiply = _value->internalValue();
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return new QBigInt(boost::apply_visitor(mix::multiply(), m_internalValue, toMultiply));
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}
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QBigInt* QBigInt::divide(QBigInt* const& _value) const
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{
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BigIntVariant toDivide = _value->internalValue();
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return new QBigInt(boost::apply_visitor(mix::divide(), m_internalValue, toDivide));
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}
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QVariantMap QBigInt::checkAgainst(QString const& _type) const
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{
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QVariantMap ret;
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QString type = _type;
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QString capacity = type.replace("uint", "").replace("int", "");
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if (capacity.isEmpty())
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capacity = "256";
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bigint range = 1;
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for (int k = 0; k < capacity.toInt() / 8; ++k)
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range = range * 256;
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bigint value = boost::get<bigint>(this->internalValue());
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ret.insert("valid", true);
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if (_type.startsWith("uint") && value > range - 1)
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{
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ret.insert("minValue", "0");
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std::ostringstream s;
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s << range - 1;
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ret.insert("maxValue", QString::fromStdString(s.str()));
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if (value > range)
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ret["valid"] = false;
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}
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else if (_type.startsWith("int"))
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{
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range = range / 2;
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std::ostringstream s;
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s << -range;
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ret.insert("minValue", QString::fromStdString(s.str()));
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s.str("");
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s.clear();
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s << range - 1;
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ret.insert("maxValue", QString::fromStdString(s.str()));
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if (-range > value || value > range - 1)
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ret["valid"] = false;
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}
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return ret;
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}
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