how can I avoid the use of #if in a polymorphic print macro

Question

Let\'s try to run the following code:

#include 
#define MY_MACRO1(isArray,y) do { \\
                      if(isArray) \\
                                 


        

Answer 1

You can use BOOST_PP_IF:

#include 

#define MY_MACRO1(isArray,y) printf("%d", BOOST_PP_IF(isArray, (y)[0], (y)))

See it live on Coliru