solidity/tools/yulPhaser/Selections.cpp

61 lines
1.7 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/Selections.h>
#include <tools/yulPhaser/SimulationRNG.h>
#include <cmath>
using namespace std;
using namespace solidity::phaser;
vector<size_t> RangeSelection::materialise(size_t _poolSize) const
{
size_t beginIndex = static_cast<size_t>(round(_poolSize * m_startPercent));
size_t endIndex = static_cast<size_t>(round(_poolSize * m_endPercent));
vector<size_t> selection;
for (size_t i = beginIndex; i < endIndex; ++i)
selection.push_back(i);
return selection;
}
vector<size_t> MosaicSelection::materialise(size_t _poolSize) const
{
size_t count = static_cast<size_t>(round(_poolSize * m_selectionSize));
vector<size_t> selection;
for (size_t i = 0; i < count; ++i)
selection.push_back(min(m_pattern[i % m_pattern.size()], _poolSize - 1));
return selection;
}
vector<size_t> RandomSelection::materialise(size_t _poolSize) const
{
size_t count = static_cast<size_t>(round(_poolSize * m_selectionSize));
vector<size_t> selection;
for (size_t i = 0; i < count; ++i)
selection.push_back(SimulationRNG::uniformInt(0, _poolSize - 1));
return selection;
}