How can I hide “defined but not used” warnings in GCC?

Question

I have a bunch of compile time asserts, such as:

CASSERT(isTrue) or CASSERT2(isTrue, prefix_)

When compiling with GCC I get many warnings l

Answer 1

Wrap this functions by the following directives All the code that will be placed between push and pop will not warn you about unused functions. All the rest of the code (outside push and pop) will not be affected.

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-function"

... your code

#pragma GCC diagnostic pop