DivisibleByTwo.cs

using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Order;

namespace Benchmarkator.Division;

[Orderer(SummaryOrderPolicy.FastestToSlowest)]
public class DivisibleByTwo
{
    [Params(0, 2, 256, 1024, int.MaxValue, int.MinValue)]
    public int Number;

    [Benchmark]
    public bool Modulo()
    {
        return Number % 2 == 0;
    }

    [Benchmark]
    public bool LogicalAnd()
    {
        // odd number ends with `0` in binary, so if logical `AND` with `1` is `0`, number is odd
        // N & (C - 1)
        return (Number & 1) == 0;
    }
}