public static void HasFlagTest(TestFlags value, TestFlags flag)
{
// ReSharper disable HeapView.BoxingAllocation
Assert.Equal(value.HasFlag(flag), EnumUtils <TestFlags> .HasFlag(value, flag));
Assert.Equal(value.HasFlag(flag), value.HasFlagF(flag));
// ReSharper restore HeapView.BoxingAllocation
}
public void HasEnumFlags_NoApiConflicts()
{
TestFlags flags = TestFlags.One | TestFlags.Four;
flags.HasFlag(TestFlags.Four)
.Should().BeTrue();
}
static void Main(string[] args)
{
TestFlags f = TestFlags.Five; /* or any other enum */
bool result = false;
Stopwatch s = Stopwatch.StartNew();
for (int i = 0; i < 10000000; i++)
{
result |= f.HasFlag(TestFlags.Three);
}
s.Stop();
Console.WriteLine(s.ElapsedMilliseconds); // *4793 ms*
s.Restart();
for (int i = 0; i < 10000000; i++)
{
result |= (f & TestFlags.Three) != 0;
}
s.Stop();
Console.WriteLine(s.ElapsedMilliseconds); // *27 ms*
Console.ReadLine();
}