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#include <stdio.h>
#define AAA_NUM 10
#define BBB_NUM 20
#define PREFIX_NUM(string) string##_NUM
int main()
{
char *name_a = "AAA";
char *name_b = "AAA";
printf("AAA_NUM: %d\n", PREFIX_NUM(name_a));
printf("BBB_NUM: %d\n", PREFIX_NUM(name_b));
return 0;
}
