/* Regression test for https://github.com/cc65/cc65/issues/2566 * * The issue was introduced in an innocious-looking commit back in 2020: * * https://github.com/cc65/cc65/commit/c3a6b399456937093eda9994f19b7f722731528d * */ #include #include #include typedef struct { unsigned long Field1; unsigned long Field2; } RecordType; typedef struct { char dummy; // -- Offsets the Rec field by 1 byte. RecordType Rec; } StructTypeA; typedef struct { RecordType Rec; } StructTypeB; int main(void) { StructTypeA A, *Aptr; StructTypeB B; bool ok; A.Rec.Field1 = 0x11111111; A.Rec.Field2 = 0x22222222; Aptr = &A; B.Rec = Aptr->Rec; /* These print statements give some clues as to what's going on. */ /* printf("A.Rec: %lx, %lx\n", A.Rec.Field1, A.Rec.Field2); printf("B.Rec: %lx, %lx\n", B.Rec.Field1, B.Rec.Field2); */ ok = (A.Rec.Field1 == B.Rec.Field1 && A.Rec.Field2 == B.Rec.Field2); return ok ? EXIT_SUCCESS : EXIT_FAILURE; }