gcc/testsuite/gdc.test/fail_compilation/diag5450.d

/*
TEST_OUTPUT:
---
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
---
*/

class A
{
    this() { }
}

class B : A
{
    this(int f) {}
}

class C : B
{
}