What is the best way to navigate #ifdef and #endif in C program

[Daniel (Youngwhan)]

Hi,

If there is curly brace, it is easy to navigate between them by M-C-f
and M-C-b in c-mode.

However, I cannot find a way to navigate in like curly brace when it
comes to #ifdef, #else, and #endif.

For example, if there is a code like this:

#ifdef A_DEFINED
(...100 lines)
#else
(... 500 lines)
#endif

, is there a easy way to move the cursor from #endif to #ifdef or
#else and vice versa?

Daniel