1 #ifndef J_H 2 #define J_H 3 4 #define STR(x) #x 5 #define HDR(x) STR(x.h) 6 7 #include ALLOWED_INC 8 #include HDR(a) 9 10 const int j = a * a + b; 11 12 // expected-no-diagnostics 13 14 #endif 15