How can I cause a compile loop in c++?

Question

I want to write a program in c++ in a simple source.cpp file to make compile loop for ever!
whithout header files and etc.

Answer 1

One way I can think of is to create massive nested loops to jam the linker.

Answer 2

while (true) {}

Answer 3

Why would you do that

Answer 4

compile loop means : compiling never finishes!