Ellipsis notation in C#?

Question

Where can I get info about implementing my own methods that have the ellipsis notation,

e.g.

static void my_printf(char* format, ...) { }

Also is that called ellipsis notation or is there a fancier name?

Answer 1

Have a look at the params keyword

Answer 2

params:

static void MyPrintf(string format, params object[] args) { }