#include <stdio.h> // printf() #define CAT2(a,b) a##b#define CAT(a,b) CAT2(a,b)#define AB(x) CAT(x,y) int main(void){ int xy = 42; printf("%d\n", CAT(A,B)(x)); return 0;}#include <stdio.h> // printf()
#define CAT2(a,b) a##b
#define CAT(a,b) CAT2(a,b)
#define AB(x) CAT(x,y)
int main(void)
{
int xy = 42;
printf("%d\n", CAT(A,B)(x));
return 0;
}