public static bool IsPrime(int n, PrimeTestType testType)
{
switch (testType)
{
case PrimeTestType.TrialDivision:
return(IsTrialPrime(n));
case PrimeTestType.EratosthenesSieve:
return(IsEratosthenesPrime(n));
default:
throw new ArgumentOutOfRangeException(nameof(testType), testType, "Unknown test specified!");
}
}
static void Main(string[] args)
{
while (true)
{
var menuChoice = ReadVariantFromConsole(MenuVariants);
if (0 == menuChoice)
{
return;
}
PrimeTestType.TryParse(MenuVariants[menuChoice], out PrimeTestType testType);
uint n;
do
{
Console.Write("N = ");
var isValid = uint.TryParse(Console.ReadLine(), out n);
if (isValid && n < MaxNumber)
{
break;
}
if (!isValid)
{
Console.WriteLine("Invalid number");
}
if (n >= MaxNumber)
{
Console.WriteLine("Number is too big");
}
} while (true);
var isNPrime = IsPrime((int)n, testType);
Console.WriteLine("{0} is {1}prime", n, isNPrime ? "" : "not ");
}
}
