mlemanczyk/even-perfect-numbers-scanner
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Write only prime residue results

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Marek Lemańczyk committed 2025-09-20 05:25:00 +02:00
1 parent 68179b14d7
commit 6f692e93ef
2 files changed
+75 -45
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EvenPerfectBitScanner/Program.cs
+57 -44
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@@ -836,57 +836,70 @@ internal static class Program
}
}
if (_useResidueMode && _lastCompositeP)
{
return;
}
bool lastWasComposite = _lastCompositeP;
bool primeFlag = false, printToConsole = false;
bool primeFlag = false, printToConsole = false;
StringBuilder? localBuilder = passedAllTests ? StringBuilderPool.Rent() : null;
if (localBuilder is not null)
{
_ = localBuilder
.Append(currentP).Append(',')
.Append(searchedMersenne).Append(',')
.Append(detailedCheck).Append(',')
.Append(passedAllTests).Append('\n');
}
StringBuilder localBuilder = StringBuilderPool.Rent();
_ = localBuilder
.Append(currentP).Append(',')
.Append(searchedMersenne).Append(',')
.Append(detailedCheck).Append(',')
.Append(passedAllTests).Append('\n');
lock (Sync)
{
if (_consoleCounter >= ConsoleInterval)
{
printToConsole = true;
primeFlag = passedAllTests && !lastWasComposite && _primeFoundAfterInit;
_consoleCounter = 0;
}
else
{
_consoleCounter++;
}
lock (Sync)
{
_ = _outputBuilder!.Append(localBuilder);
if (localBuilder is not null)
{
_ = _outputBuilder!.Append(localBuilder);
if (_consoleCounter >= ConsoleInterval)
{
printToConsole = true;
primeFlag = _primeFoundAfterInit;
_consoleCounter = 0;
}
else
{
_consoleCounter++;
}
_writeIndex++;
if (_writeIndex >= _writeBatchSize)
{
FlushBuffer();
}
}
}
_writeIndex++;
if (_writeIndex >= _writeBatchSize)
{
FlushBuffer();
}
}
if (printToConsole)
{
if (localBuilder is not null)
{
if (primeFlag)
{
_ = localBuilder
.Remove(localBuilder.Length - 1, 1)
.Append(PrimeFoundSuffix)
.Append('\n');
}
if (printToConsole)
{
if (primeFlag)
{
_ = localBuilder
.Remove(localBuilder.Length - 1, 1)
.Append(PrimeFoundSuffix)
.Append('\n');
}
Console.WriteLine(localBuilder.Remove(localBuilder.Length - 1, 1).ToString());
}
else
{
Console.WriteLine($"{currentP},{searchedMersenne},{detailedCheck},{passedAllTests}");
}
}
Console.WriteLine(localBuilder.Remove(localBuilder.Length - 1, 1).ToString());
}
StringBuilderPool.Return(localBuilder);
}
if (localBuilder is not null)
{
localBuilder.Clear();
StringBuilderPool.Return(localBuilder);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static void FlushBuffer()