ref: 5cee3c5e3fdc511a468879104c08a1aa0e8c2b0f dir: /tests/cc/execute/0149-define.c/
#define M(x) x #define A(a,b) a(b) int main(void) { char *a = A(M,"hi"); return (a[1] == 'i') ? 0 : 1; }