| 1 | // RUN: %clang_cc1 -fsyntax-only -fcxx-exceptions -verify -std=c++11 -Wall %s |
| 2 | |
| 3 | struct Bitfield { |
| 4 | int n : 3 = 7; // expected-warning {{C++2a extension}} expected-warning {{changes value from 7 to -1}} |
| 5 | }; |
| 6 | |
| 7 | int a; |
| 8 | class NoWarning { |
| 9 | int &n = a; |
| 10 | public: |
| 11 | int &GetN() { return n; } |
| 12 | }; |
| 13 | |
| 14 | bool b(); |
| 15 | int k; |
| 16 | struct Recurse { // expected-error {{initializer for 'n' needed}} |
| 17 | int &n = // expected-note {{declared here}} |
| 18 | b() ? |
| 19 | Recurse().n : // expected-note {{in evaluation of exception spec}} |
| 20 | k; |
| 21 | }; |
| 22 | |
| 23 | struct UnknownBound { |
| 24 | int as[] = { 1, 2, 3 }; // expected-error {{array bound cannot be deduced from an in-class initializer}} |
| 25 | int bs[4] = { 4, 5, 6, 7 }; |
| 26 | int cs[] = { 8, 9, 10 }; // expected-error {{array bound cannot be deduced from an in-class initializer}} |
| 27 | }; |
| 28 | |
| 29 | template<int n> struct T { static const int B; }; |
| 30 | template<> struct T<2> { template<int C, int D> using B = int; }; |
| 31 | const int C = 0, D = 0; |
| 32 | struct S { |
| 33 | int as[] = { decltype(x)::B<C, D>(0) }; // expected-error {{array bound cannot be deduced from an in-class initializer}} |
| 34 | T<sizeof(as) / sizeof(int)> x; |
| 35 | // test that we handle invalid array bound deductions without crashing when the declarator name is itself invalid |
| 36 | operator int[](){}; // expected-error {{'operator int' cannot be the name of a variable or data member}} \ |
| 37 | // expected-error {{array bound cannot be deduced from an in-class initializer}} |
| 38 | }; |
| 39 | |
| 40 | struct ThrowCtor { ThrowCtor(int) noexcept(false); }; |
| 41 | struct NoThrowCtor { NoThrowCtor(int) noexcept(true); }; |
| 42 | |
| 43 | struct Throw { ThrowCtor tc = 42; }; |
| 44 | struct NoThrow { NoThrowCtor tc = 42; }; |
| 45 | |
| 46 | static_assert(!noexcept(Throw()), "incorrect exception specification"); |
| 47 | static_assert(noexcept(NoThrow()), "incorrect exception specification"); |
| 48 | |
| 49 | struct CheckExcSpec { |
| 50 | CheckExcSpec() noexcept(true) = default; |
| 51 | int n = 0; |
| 52 | }; |
| 53 | struct CheckExcSpecFail { |
| 54 | CheckExcSpecFail() noexcept(true) = default; // expected-error {{exception specification of explicitly defaulted default constructor does not match the calculated one}} |
| 55 | ThrowCtor tc = 123; |
| 56 | }; |
| 57 | |
| 58 | struct TypedefInit { |
| 59 | typedef int A = 0; // expected-error {{illegal initializer}} |
| 60 | }; |
| 61 | |
| 62 | // PR10578 / <rdar://problem/9877267> |
| 63 | namespace PR10578 { |
| 64 | template<typename T> |
| 65 | struct X { |
| 66 | X() { |
| 67 | T* x = 1; // expected-error{{cannot initialize a variable of type 'int *' with an rvalue of type 'int'}} |
| 68 | } |
| 69 | }; |
| 70 | |
| 71 | struct Y : X<int> { |
| 72 | Y(); |
| 73 | }; |
| 74 | |
| 75 | Y::Y() try { // expected-note{{in instantiation of member function 'PR10578::X<int>::X' requested here}} |
| 76 | } catch(...) { |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | namespace PR14838 { |
| 81 | struct base { ~base() {} }; |
| 82 | class function : base { |
| 83 | ~function() {} // expected-note {{implicitly declared private here}} |
| 84 | public: |
| 85 | function(...) {} |
| 86 | }; |
| 87 | struct thing {}; |
| 88 | struct another { |
| 89 | another() : r(thing()) {} // expected-error {{binds to a temporary object}} |
| 90 | // expected-error@-1 {{temporary of type 'PR14838::function' has private destructor}} |
| 91 | const function &r; // expected-note {{reference member declared here}} |
| 92 | } af; |
| 93 | } |
| 94 | |
| 95 | namespace rdar14084171 { |
| 96 | struct Point { // expected-note 3 {{candidate constructor}} |
| 97 | double x; |
| 98 | double y; |
| 99 | }; |
| 100 | struct Sprite { |
| 101 | Point location = Point(0,0); // expected-error {{no matching constructor for initialization of 'rdar14084171::Point'}} |
| 102 | }; |
| 103 | void f(Sprite& x) { x = x; } // expected-warning {{explicitly assigning value of variable}} |
| 104 | } |
| 105 | |
| 106 | namespace PR18560 { |
| 107 | struct X { int m; }; |
| 108 | |
| 109 | template<typename T = X, |
| 110 | typename U = decltype(T::m)> |
| 111 | int f(); |
| 112 | |
| 113 | struct Y { int b = f(); }; |
| 114 | } |
| 115 | |
| 116 | namespace template_valid { |
| 117 | // Valid, we shouldn't build a CXXDefaultInitExpr until A's ctor definition. |
| 118 | struct A { |
| 119 | A(); |
| 120 | template <typename T> |
| 121 | struct B { int m1 = sizeof(A) + sizeof(T); }; |
| 122 | B<int> m2; |
| 123 | }; |
| 124 | A::A() {} |
| 125 | } |
| 126 | |
| 127 | namespace template_default_ctor { |
| 128 | struct A { |
| 129 | template <typename T> |
| 130 | struct B { // expected-error {{initializer for 'm1' needed}} |
| 131 | int m1 = 0; // expected-note {{declared here}} |
| 132 | }; |
| 133 | enum { NOE = noexcept(B<int>()) }; // expected-note {{in evaluation of exception spec}} |
| 134 | }; |
| 135 | } |
| 136 | |
| 137 | namespace default_ctor { |
| 138 | struct A { |
| 139 | struct B { // expected-error {{initializer for 'm1' needed}} |
| 140 | int m1 = 0; // expected-note {{declared here}} |
| 141 | }; |
| 142 | enum { NOE = noexcept(B()) }; // expected-note {{in evaluation of exception spec}} |
| 143 | }; |
| 144 | } |
| 145 | |
| 146 | namespace member_template { |
| 147 | struct A { |
| 148 | template <typename T> |
| 149 | struct B { |
| 150 | struct C { // expected-error {{initializer for 'm1' needed}} |
| 151 | int m1 = 0; // expected-note {{declared here}} |
| 152 | }; |
| 153 | template <typename U> |
| 154 | struct D { // expected-error {{initializer for 'm1' needed}} |
| 155 | int m1 = 0; // expected-note {{declared here}} |
| 156 | }; |
| 157 | }; |
| 158 | enum { |
| 159 | NOE1 = noexcept(B<int>::C()), // expected-note {{in evaluation of exception spec}} |
| 160 | NOE2 = noexcept(B<int>::D<int>()) // expected-note {{in evaluation of exception spec}} |
| 161 | }; |
| 162 | }; |
| 163 | } |
| 164 | |
| 165 | namespace explicit_instantiation { |
| 166 | template<typename T> struct X { |
| 167 | X(); // expected-note {{in instantiation of default member initializer 'explicit_instantiation::X<float>::n' requested here}} |
| 168 | int n = T::error; // expected-error {{type 'float' cannot be used prior to '::' because it has no members}} |
| 169 | }; |
| 170 | template struct X<int>; // ok |
| 171 | template<typename T> X<T>::X() {} |
| 172 | template struct X<float>; // expected-note {{in instantiation of member function 'explicit_instantiation::X<float>::X' requested here}} |
| 173 | } |
| 174 | |
| 175 | namespace local_class { |
| 176 | template<typename T> void f() { |
| 177 | struct X { // expected-note {{in instantiation of default member initializer 'local_class::f()::X::n' requested here}} |
| 178 | int n = T::error; // expected-error {{type 'int' cannot be used prior to '::' because it has no members}} |
| 179 | }; |
| 180 | } |
| 181 | void g() { f<int>(); } // expected-note {{in instantiation of function template specialization 'local_class::f<int>' requested here}} |
| 182 | } |
| 183 | |
| 184 | namespace PR22056 { |
| 185 | template <int N> |
| 186 | struct S { |
| 187 | int x[3] = {[N] = 3}; |
| 188 | }; |
| 189 | } |
| 190 | |
| 191 | namespace PR28060 { |
| 192 | template <class T> |
| 193 | void foo(T v) { |
| 194 | struct s { |
| 195 | T *s = 0; |
| 196 | }; |
| 197 | } |
| 198 | template void foo(int); |
| 199 | } |
| 200 | |