Enter binary instead of hex [duplicate]

Question

Possible Duplicate:
Can I use a binary literal in C or C++?

In C I can write

uint32_t a = 0x40022000;

using hex. Can I do something similar by entering binary digits?

Answer 1

You can't do that with standard C, but some compilers such as gcc supports an extension that allows you to write something like

uint32_t a = 0b11010101110101;