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Checking for int.MinValue separately. #471

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Checking for int.MinValue separately. #471

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8 changes: 8 additions & 0 deletions net-core/Ical.Net/Serialization/DataTypes/RecurrencePatternSerializer.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,14 @@ public virtual void CheckMutuallyExclusive<T, TU>(string name1, string name2, T
{
return;
}

// For some reason GetField("MinValue") sometimes returns 'null' when the obj is an int
// Casting the object to an int and directly checking for MinValue works though.
if (obj1 is int c && c == int.MinValue)
{
return;
}

// If the object is MinValue instead of its default, consider
// that to be unassigned.

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