1 /* 2 TEST_OUTPUT: 3 --- 4 fail_compilation/diag5450.d(18): Error: class diag5450.C cannot implicitly generate a default ctor when base class diag5450.B is missing a default ctor 5 --- 6 */ 7 8 class A 9 { this()10 this() { } 11 } 12 13 class B : A 14 { this(int f)15 this(int f) {} 16 } 17 18 class C : B 19 { 20 } 21