C preprocessor Macro defining Macro

Question

Can you do something like this with a macro in C?

#define SUPERMACRO(X,Y) #define X Y

then

SUPERMACRO(A,B) expands to #define A B
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Answer 1

You cannot define macros in other macros, but you can call a macro from your macro, which can get you essentially the same results.

#define B(x) do {printf("%d", (x)) }while(0)
#define A(x) B(x)

so, A(y) is expanded to do {printf("%d", (y)) }while(0)