1 /* 2 TEST_OUTPUT: 3 --- 4 fail_compilation/diag13320.d(13): Error: 'f += 1' is not a scalar, it is a Foo 5 --- 6 */ 7 8 struct Foo {} 9 main()10 void main() 11 { 12 Foo f; 13 ++f; 14 } 15