public override int GetHashCode()
{
unchecked
{
return((EqualityComparer <T> .Default.GetHashCode(_value) * 397) ^ IsPresent.GetHashCode());
}
}
public override int GetHashCode()
{
unchecked
{
int hashCode = 27;
hashCode = (13 * hashCode) + IsPresent.GetHashCode();
hashCode = (13 * hashCode) + Value.GetHashCode();
return(hashCode);
}
}
public override int GetHashCode()
{
return(IsPresent.GetHashCode());
}