[WARNING]
In a macro 'call', one or more arguments are missing. The pre-processor replaces the parameter string with nothing. Note: The pragma MESSAGE does not apply to this message because it is issued in the preprocessing phase.
#define f(A, B) int A B
void main(void){
f(i,);// this statement will be replaced with 'int i;'
// by the pre-processor.
}
Be careful with empty macro arguments, because the behavior is undefined in ANSI-C. So avoid it if possible.