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[yul-phaser] Selections+PairSelections: Add RandomSubset and PairsFromRandomSubset

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This commit is contained in:
Kamil Śliwak
2020-04-06 19:06:08 +02:00
parent 7381068dcc
commit b6f8ecf755
6 changed files with 220 additions and 0 deletions
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tools/yulPhaser/Selections.cpp
+10
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@@ -20,6 +20,7 @@
#include <tools/yulPhaser/SimulationRNG.h>
#include <cmath>
#include <numeric>
using namespace std;
using namespace solidity::phaser;
@@ -58,3 +59,12 @@ vector<size_t> RandomSelection::materialise(size_t _poolSize) const
return selection;
}
vector<size_t> RandomSubset::materialise(size_t _poolSize) const
{
vector<size_t> selection;
for (size_t index = 0; index < _poolSize; ++index)
if (SimulationRNG::bernoulliTrial(m_selectionChance))
selection.push_back(index);
return selection;
}