C++ new int[0] — will it allocate memory?

Question

A simple test app:

cout << new int[0] << endl;

outputs:

0x876c0b8

So it looks like it works.

Answer 1

Curiously, C++ requires that operator new return a legitimate pointer even when zero bytes are requested. (Requiring this odd-sounding behavior simplifies things elsewhere in the language.)

I found Effective C++ Third Edition said like this in "Item 51: Adhere to convention when writing new and delete".