static void Main(string[] args)
{
// Create a buffer
var bytes = new byte[] { 0xA0, 0x1A, 0x35, 0x91, 0xE9, 0x51, 0x0C, 0x79, 0x04, 0xD1, 0x57, 0x81, 0x1D, 0x27 };
var span = new ReadOnlySpan <byte>(bytes);
// Read from it
int cursor = 0;
ushort one = span.ReadUInt16BigEndian(ref cursor);
uint two = span.ReadUInt32BigEndian(ref cursor);
ulong three = span.ReadUInt64BigEndian(ref cursor);
Console.WriteLine($"One: {one}");
Console.WriteLine($"Two: {two}");
Console.WriteLine($"Three: {three}");
var testString = "this is a test string!";
var writer = new SpanWriter(36);
writer.WriteInt16BigEndian(-31_971);
writer.WriteInt32BigEndian(-1_598_468_598);
writer.WriteInt64BigEndian(-7_223_372_036_854_775_808);
writer.WriteASCIIString(testString);
var reader = new SpanReader(writer.Span);
Console.WriteLine(reader.ReadInt16BigEndian());
Console.WriteLine(reader.ReadInt32BigEndian());
Console.WriteLine(reader.ReadInt64BigEndian());
Console.WriteLine(reader.ReadASCIIString(testString.Length));
Console.ReadKey();
}