What do two left-angle brackets “<<” mean in C#?

Question

Basically the questions in the title. I\'m looking at the MVC 2 source code:

[Flags]
public enum HttpVerbs {
    Get = 1 << 0,
    Post = 1 << 1,         


        

Answer 1

<< is the left bit shift operator. If you have the number 3, which is 00000011 in binary, you can write 3 << 2, which is 00001100, or 12 in decimal.