1 // I, Howard Hinnant, hereby place this code in the public domain.
2 
3 // Test that move constructor and move assignement are special.
4 //   That is, their presence should cause compiler declared
5 //   copy ctor or assignment to be deleted.
6 
7 // { dg-do compile { target c++11 } }
8 
9 #include <assert.h>
10 
11 template <bool> struct sa;
12 template <> struct sa<true> {};
13 
14 struct one   {char x[1];};
15 struct two   {char x[2];};
16 
17 int copy = 0;
18 int assign = 0;
19 
20 struct base
21 {
22     base() {}
23     base(const base&) {++copy;}
24     base& operator=(const base&) {++assign; return *this;}
25 };
26 
27 struct derived			// { dg-message "declares a move" }
28     : base
29 {
30     derived() {}
31     derived(derived&&) {}
32     derived& operator=(derived&&) {return *this;}
33 };
34 
35 int test1()
36 {
37     derived d;
38     derived d2(static_cast<derived&&>(d));  // should not call base::(const base&)
39     assert(copy == 0);
40     derived d3(d);		// { dg-error "deleted" }
41     assert(copy == 1);
42     d2 = static_cast<derived&&>(d);         // should not call base::operator=
43     assert(assign == 0);
44     d3 = d;			// { dg-error "deleted" }
45     assert(assign == 1);
46     return 0;
47 }
48 
49 int main()
50 {
51     return test1();
52 }
53