1// PR c++/45923
2// { dg-do compile { target c++11 } }
3
4int f(int);
5
6template <class T>
7constexpr T g(T t) { return f(t); } // { dg-error "f.int" }
8
9int main()
10{
11  constexpr int i = g(1);	// { dg-error "g.T" }
12}
13
14// --------------------
15
16struct complex 			// { dg-message "no constexpr constructor" }
17{
18  complex(double r, double i) : re(r), im(i) { }
19  constexpr double real() const { return re; } // { dg-error "not a literal type" }
20  double imag() const { return im; }
21
22private:
23  double re;
24  double im;
25};
26
27constexpr complex co1(0, 1);	   // { dg-error "not literal" }
28constexpr double dd2 = co1.real(); // { dg-error "non-constexpr function" }
29
30// --------------------
31
32struct base		       // { dg-message "no constexpr constructor" }
33{
34  int _M_i;
35  base() : _M_i(5) { }
36};
37
38struct derived : public base	// { dg-message "base class" }
39{
40  constexpr derived(): base() { } // { dg-error "non-constexpr function" }
41};
42
43constexpr derived obj;		// { dg-error "not literal" }
44
45// --------------------
46
47struct Def
48{
49  int _M_i;			// { dg-message "does not initialize" }
50
51  constexpr Def() = default;	// { dg-error "implicit declaration is not constexpr" }
52};
53
54constexpr Def defobj;		// { dg-error "uninitialized" }
55