member-init.cpp revision 2eef427c8666cbe9a3cad40d4947c67c3ba0c400 
1// RUN: %clang_cc1 -fsyntax-only -fcxx-exceptions -verify -std=c++0x -Wall %s
2
3struct Bitfield {
4  int n : 3 = 7; // expected-error {{bitfield member cannot have an in-class initializer}}
5};
6
7int a;
8class NoWarning {
9  int &n = a;
10public:
11  int &GetN() { return n; }
12};
13
14bool b();
15int k;
16struct Recurse {
17  int &n = b() ? Recurse().n : k; // ok
18};
19
20struct UnknownBound {
21  int as[] = { 1, 2, 3 }; // expected-error {{array bound cannot be deduced from an in-class initializer}}
22  int bs[4] = { 4, 5, 6, 7 };
23  int cs[] = { 8, 9, 10 }; // expected-error {{array bound cannot be deduced from an in-class initializer}}
24};
25
26template<int n> struct T { static const int B; };
27template<> struct T<2> { template<int C, int D> using B = int; };
28const int C = 0, D = 0;
29struct S {
30  int as[] = { decltype(x)::B<C, D>(0) }; // expected-error {{array bound cannot be deduced from an in-class initializer}}
31  T<sizeof(as) / sizeof(int)> x; // expected-error {{requires a type specifier}}
32};
33
34struct ThrowCtor { ThrowCtor(int) noexcept(false); };
35struct NoThrowCtor { NoThrowCtor(int) noexcept(true); };
36
37struct Throw { ThrowCtor tc = 42; };
38struct NoThrow { NoThrowCtor tc = 42; };
39
40static_assert(!noexcept(Throw()), "incorrect exception specification");
41static_assert(noexcept(NoThrow()), "incorrect exception specification");
42
43struct CheckExcSpec {
44  CheckExcSpec() noexcept(true) = default;
45  int n = 0;
46};
47struct CheckExcSpecFail {
48  CheckExcSpecFail() noexcept(true) = default; // expected-error {{exception specification of explicitly defaulted default constructor does not match the calculated one}}
49  ThrowCtor tc = 123;
50};
51
52struct TypedefInit {
53  typedef int A = 0; // expected-error {{illegal initializer}}
54};
55
56// PR10578 / <rdar://problem/9877267>
57namespace PR10578 {
58  template<typename T>
59  struct X {
60    X() {
61      T* x = 1; // expected-error{{cannot initialize a variable of type 'int *' with an rvalue of type 'int'}}
62    }
63  };
64
65  struct Y : X<int> {
66    Y();
67  };
68
69  Y::Y() try { // expected-note{{in instantiation of member function 'PR10578::X<int>::X' requested here}}
70  } catch(...) {
71  }
72}
73