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Fix normal_random behavior on negative parameters #4555

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Oct 15, 2023
Merged

Fix normal_random behavior on negative parameters #4555

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5 changes: 2 additions & 3 deletions src/tools.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -291,9 +291,8 @@ int32_t normal_random(int32_t minNumber, int32_t maxNumber)
v = normalRand(getRandomGenerator());
} while (v < 0.0 || v > 1.0);

std::tie(minNumber, maxNumber) = std::minmax(minNumber, maxNumber);
const int32_t diff = maxNumber - minNumber;
return minNumber + std::lround(v * diff);
auto&& [a, b] = std::minmax(minNumber, maxNumber);
return a + std::lround(v * (b - a));
}

bool boolean_random(double probability /* = 0.5*/)
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