solidity/tools/yulPhaser/GeneticAlgorithms.cpp
2020-02-25 16:06:16 +01:00

51 lines
1.5 KiB
C++

/*
This file is part of solidity.
solidity 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 3 of the License, or
(at your option) any later version.
solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
*/
#include <tools/yulPhaser/GeneticAlgorithms.h>
#include <tools/yulPhaser/Selections.h>
using namespace std;
using namespace solidity::phaser;
void GeneticAlgorithm::run(optional<size_t> _numRounds)
{
for (size_t round = 0; !_numRounds.has_value() || round < _numRounds.value(); ++round)
{
runNextRound();
m_outputStream << "---------- ROUND " << round << " ----------" << endl;
m_outputStream << m_population;
}
}
void RandomAlgorithm::runNextRound()
{
RangeSelection elite(0.0, m_options.elitePoolSize);
Population elitePopulation = m_population.select(elite);
size_t replacementCount = m_population.individuals().size() - elitePopulation.individuals().size();
m_population =
move(elitePopulation) +
Population::makeRandom(
m_population.fitnessMetric(),
replacementCount,
m_options.minChromosomeLength,
m_options.maxChromosomeLength
);
}