modernc.org/cc@v1.0.1/v2/testdata/cpp-expand/002.h (about)

     1  #define x      3
     2  #define f(a)   f(x * (a))
     3  #undef  x      
     4  #define x      2
     5  #define g      f
     6  #define w      0,1
     7  
     8  g(x+(3,4)-w)