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Fix a test. #263

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Merged
bangerth merged 1 commit into from
Dec 16, 2024
Merged

Fix a test. #263

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13 changes: 12 additions & 1 deletion tests/differential_evaluation_mh_producer_01.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -95,7 +95,18 @@ std::pair<SampleType,double> perturb (const SampleType &x)

SampleType crossover(const SampleType &current_sample, const SampleType &sample_a, const SampleType &sample_b)
{
return current_sample + (2.38 * sqrt(2)) * (sample_a - sample_b);
const SampleType min = 1;
const SampleType max = 100;
const SampleType x_tilde = static_cast<SampleType>(current_sample +
(2.38 * sqrt(2)) * (sample_a - sample_b));

// Wrap around the interval [1...100]
if (x_tilde < min)
return x_tilde + (max-min+1);
else if (x_tilde > max)
return x_tilde - (max-min+1);
else
return x_tilde;
}

int main ()
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