Empty structure in C

Question

I have a structure with no members (for the moment) and I would like to know if it is possible to suppress the warning I get:

warning: struct has no members         


        

Answer 1

C99 standard is somewhat ambiguous on this, but seems to say that an empty struct should have non-zero size.

6.2.6.1 Except for bit-fields, objects are composed of contiguous sequences of one or more bytes, the number, order, and encoding of which are either explicitly specified or implementation-defined.