extern int printf(const char *format, ...); #define ACPI_TYPE_INVALID 0x1E #define NUM_NS_TYPES ACPI_TYPE_INVALID+1 int array[NUM_NS_TYPES]; #define n 0xe int main() { printf("n+1 = %d\n", n+1); // printf("n+1 = %d\n", 0xe+1); }