gistfile1.cs

    /// <summary>
    /// Fast, allocation free equality comparer for blittable structs with an underlying size of 64 bits or less.
    /// </summary>
    public class Blittable64EqComparer<T> : Smooth.Collections.EqComparer<T> {
        public override bool Equals(T t1, T t2) {
            Converter converter;
            converter.value = 0;
            converter.t = t1;
            var v1 = converter.value;
            converter.t = t2;
            return v1 == converter.value;
        }
        
        public override int GetHashCode(T t) {
            Converter converter;
            converter.value = 0;
            converter.t = t;
            return converter.value.GetHashCode();
        }
        
        [StructLayout(LayoutKind.Explicit)]
        internal struct Converter
        {
            [FieldOffset(0)]
            public T t;
            
            [FieldOffset(0)]
            public Int64 value;
        }
    }