| // RUN: %clang_cc1 -std=c++98 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors |
| // RUN: %clang_cc1 -std=c++11 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors |
| // RUN: %clang_cc1 -std=c++14 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors |
| // RUN: %clang_cc1 -std=c++17 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors |
| // RUN: %clang_cc1 -std=c++2a %s -verify -fexceptions -fcxx-exceptions -pedantic-errors |
| |
| // PR13819 -- __SIZE_TYPE__ is incompatible. |
| typedef __SIZE_TYPE__ size_t; // expected-error 0-1 {{extension}} |
| |
| #if __cplusplus < 201103L |
| #define fold(x) (__builtin_constant_p(x) ? (x) : (x)) |
| #else |
| #define fold |
| #endif |
| |
| namespace dr200 { // dr200: dup 214 |
| template <class T> T f(int); |
| template <class T, class U> T f(U) = delete; // expected-error 0-1{{extension}} |
| |
| void g() { |
| f<int>(1); |
| } |
| } |
| |
| // dr201 FIXME: write codegen test |
| |
| namespace dr202 { // dr202: yes |
| template<typename T> T f(); |
| template<int (*g)()> struct X { |
| int arr[fold(g == &f<int>) ? 1 : -1]; |
| }; |
| template struct X<f>; |
| } |
| |
| // FIXME (export) dr204: no |
| |
| namespace dr206 { // dr206: yes |
| struct S; // expected-note 2{{declaration}} |
| template<typename T> struct Q { S s; }; // expected-error {{incomplete}} |
| template<typename T> void f() { S s; } // expected-error {{incomplete}} |
| } |
| |
| namespace dr207 { // dr207: yes |
| class A { |
| protected: |
| static void f() {} |
| }; |
| class B : A { |
| public: |
| using A::f; |
| void g() { |
| A::f(); |
| f(); |
| } |
| }; |
| } |
| |
| // dr208 FIXME: write codegen test |
| |
| namespace dr209 { // dr209: yes |
| class A { |
| void f(); // expected-note {{here}} |
| }; |
| class B { |
| friend void A::f(); // expected-error {{private}} |
| }; |
| } |
| |
| // dr210 FIXME: write codegen test |
| |
| namespace dr211 { // dr211: yes |
| struct A { |
| A() try { |
| throw 0; |
| } catch (...) { |
| return; // expected-error {{return in the catch of a function try block of a constructor}} |
| } |
| }; |
| } |
| |
| namespace dr213 { // dr213: yes |
| template <class T> struct A : T { |
| void h(T t) { |
| char &r1 = f(t); |
| int &r2 = g(t); // expected-error {{undeclared}} |
| } |
| }; |
| struct B { |
| int &f(B); |
| int &g(B); // expected-note {{in dependent base class}} |
| }; |
| char &f(B); |
| |
| template void A<B>::h(B); // expected-note {{instantiation}} |
| } |
| |
| namespace dr214 { // dr214: yes |
| template<typename T, typename U> T checked_cast(U from) { U::error; } |
| template<typename T, typename U> T checked_cast(U *from); |
| class C {}; |
| void foo(int *arg) { checked_cast<const C *>(arg); } |
| |
| template<typename T> T f(int); |
| template<typename T, typename U> T f(U) { T::error; } |
| void g() { |
| f<int>(1); |
| } |
| } |
| |
| namespace dr215 { // dr215: yes |
| template<typename T> class X { |
| friend void T::foo(); |
| int n; |
| }; |
| struct Y { |
| void foo() { (void)+X<Y>().n; } |
| }; |
| } |
| |
| namespace dr216 { // dr216: no |
| // FIXME: Should reject this: 'f' has linkage but its type does not, |
| // and 'f' is odr-used but not defined in this TU. |
| typedef enum { e } *E; |
| void f(E); |
| void g(E e) { f(e); } |
| |
| struct S { |
| // FIXME: Should reject this: 'f' has linkage but its type does not, |
| // and 'f' is odr-used but not defined in this TU. |
| typedef enum { e } *E; |
| void f(E); |
| }; |
| void g(S s, S::E e) { s.f(e); } |
| } |
| |
| namespace dr217 { // dr217: yes |
| template<typename T> struct S { |
| void f(int); |
| }; |
| template<typename T> void S<T>::f(int = 0) {} // expected-error {{default arguments cannot be added}} |
| } |
| |
| namespace dr218 { // dr218: yes |
| namespace A { |
| struct S {}; |
| void f(S); |
| } |
| namespace B { |
| struct S {}; |
| void f(S); |
| } |
| |
| struct C { |
| int f; |
| void test1(A::S as) { f(as); } // expected-error {{called object type 'int'}} |
| void test2(A::S as) { void f(); f(as); } // expected-error {{too many arguments}} expected-note {{}} |
| void test3(A::S as) { using A::f; f(as); } // ok |
| void test4(A::S as) { using B::f; f(as); } // ok |
| void test5(A::S as) { int f; f(as); } // expected-error {{called object type 'int'}} |
| void test6(A::S as) { struct f {}; (void) f(as); } // expected-error {{no matching conversion}} expected-note +{{}} |
| }; |
| |
| namespace D { |
| struct S {}; |
| struct X { void operator()(S); } f; |
| } |
| void testD(D::S ds) { f(ds); } // expected-error {{undeclared identifier}} |
| |
| namespace E { |
| struct S {}; |
| struct f { f(S); }; |
| } |
| void testE(E::S es) { f(es); } // expected-error {{undeclared identifier}} |
| |
| namespace F { |
| struct S { |
| template<typename T> friend void f(S, T) {} |
| }; |
| } |
| void testF(F::S fs) { f(fs, 0); } |
| |
| namespace G { |
| namespace X { |
| int f; |
| struct A {}; |
| } |
| namespace Y { |
| template<typename T> void f(T); |
| struct B {}; |
| } |
| template<typename A, typename B> struct C {}; |
| } |
| void testG(G::C<G::X::A, G::Y::B> gc) { f(gc); } |
| } |
| |
| // dr219: na |
| // dr220: na |
| |
| namespace dr221 { // dr221: yes |
| struct A { // expected-note 2-4{{candidate}} |
| A &operator=(int&); // expected-note 2{{candidate}} |
| A &operator+=(int&); |
| static A &operator=(A&, double&); // expected-error {{cannot be a static member}} |
| static A &operator+=(A&, double&); // expected-error {{cannot be a static member}} |
| friend A &operator=(A&, char&); // expected-error {{must be a non-static member function}} |
| friend A &operator+=(A&, char&); |
| }; |
| A &operator=(A&, float&); // expected-error {{must be a non-static member function}} |
| A &operator+=(A&, float&); |
| |
| void test(A a, int n, char c, float f) { |
| a = n; |
| a += n; |
| a = c; // expected-error {{no viable}} |
| a += c; |
| a = f; // expected-error {{no viable}} |
| a += f; |
| } |
| } |
| |
| namespace dr222 { // dr222: dup 637 |
| void f(int a, int b, int c, int *x) { |
| #pragma clang diagnostic push |
| #pragma clang diagnostic warning "-Wunsequenced" |
| void((a += b) += c); |
| void((a += b) + (a += c)); // expected-warning {{multiple unsequenced modifications to 'a'}} |
| |
| x[a++] = a; // expected-warning {{unsequenced modification and access to 'a'}} |
| |
| a = b = 0; // ok, read and write of 'b' are sequenced |
| |
| a = (b = a++); // expected-warning {{multiple unsequenced modifications to 'a'}} |
| a = (b = ++a); |
| #pragma clang diagnostic pop |
| } |
| } |
| |
| // dr223: na |
| |
| namespace dr224 { // dr224: no |
| namespace example1 { |
| template <class T> class A { |
| typedef int type; |
| A::type a; |
| A<T>::type b; |
| A<T*>::type c; // expected-error {{missing 'typename'}} |
| ::dr224::example1::A<T>::type d; |
| |
| class B { |
| typedef int type; |
| |
| A::type a; |
| A<T>::type b; |
| A<T*>::type c; // expected-error {{missing 'typename'}} |
| ::dr224::example1::A<T>::type d; |
| |
| B::type e; |
| A<T>::B::type f; |
| A<T*>::B::type g; // expected-error {{missing 'typename'}} |
| typename A<T*>::B::type h; |
| }; |
| }; |
| |
| template <class T> class A<T*> { |
| typedef int type; |
| A<T*>::type a; |
| A<T>::type b; // expected-error {{missing 'typename'}} |
| }; |
| |
| template <class T1, class T2, int I> struct B { |
| typedef int type; |
| B<T1, T2, I>::type b1; |
| B<T2, T1, I>::type b2; // expected-error {{missing 'typename'}} |
| |
| typedef T1 my_T1; |
| static const int my_I = I; |
| static const int my_I2 = I+0; |
| static const int my_I3 = my_I; |
| B<my_T1, T2, my_I>::type b3; // FIXME: expected-error {{missing 'typename'}} |
| B<my_T1, T2, my_I2>::type b4; // expected-error {{missing 'typename'}} |
| B<my_T1, T2, my_I3>::type b5; // FIXME: expected-error {{missing 'typename'}} |
| }; |
| } |
| |
| namespace example2 { |
| template <int, typename T> struct X { typedef T type; }; |
| template <class T> class A { |
| static const int i = 5; |
| X<i, int>::type w; // FIXME: expected-error {{missing 'typename'}} |
| X<A::i, char>::type x; // FIXME: expected-error {{missing 'typename'}} |
| X<A<T>::i, double>::type y; // FIXME: expected-error {{missing 'typename'}} |
| X<A<T*>::i, long>::type z; // expected-error {{missing 'typename'}} |
| int f(); |
| }; |
| template <class T> int A<T>::f() { |
| return i; |
| } |
| } |
| } |
| |
| // dr225: yes |
| template<typename T> void dr225_f(T t) { dr225_g(t); } // expected-error {{call to function 'dr225_g' that is neither visible in the template definition nor found by argument-dependent lookup}} |
| void dr225_g(int); // expected-note {{should be declared prior to the call site}} |
| template void dr225_f(int); // expected-note {{in instantiation of}} |
| |
| namespace dr226 { // dr226: no |
| template<typename T = void> void f() {} |
| #if __cplusplus < 201103L |
| // expected-error@-2 {{extension}} |
| // FIXME: This appears to be wrong: default arguments for function templates |
| // are listed as a defect (in c++98) not an extension. EDG accepts them in |
| // strict c++98 mode. |
| #endif |
| template<typename T> struct S { |
| template<typename U = void> void g(); |
| #if __cplusplus < 201103L |
| // expected-error@-2 {{extension}} |
| #endif |
| template<typename U> struct X; |
| template<typename U> void h(); |
| }; |
| template<typename T> template<typename U> void S<T>::g() {} |
| template<typename T> template<typename U = void> struct S<T>::X {}; // expected-error {{cannot add a default template arg}} |
| template<typename T> template<typename U = void> void S<T>::h() {} // expected-error {{cannot add a default template arg}} |
| |
| template<typename> void friend_h(); |
| struct A { |
| // FIXME: This is ill-formed. |
| template<typename=void> struct friend_B; |
| // FIXME: f, h, and i are ill-formed. |
| // f is ill-formed because it is not a definition. |
| // h and i are ill-formed because they are not the only declarations of the |
| // function in the translation unit. |
| template<typename=void> void friend_f(); |
| template<typename=void> void friend_g() {} |
| template<typename=void> void friend_h() {} |
| template<typename=void> void friend_i() {} |
| #if __cplusplus < 201103L |
| // expected-error@-5 {{extension}} expected-error@-4 {{extension}} |
| // expected-error@-4 {{extension}} expected-error@-3 {{extension}} |
| #endif |
| }; |
| template<typename> void friend_i(); |
| |
| template<typename=void, typename X> void foo(X) {} |
| template<typename=void, typename X> struct Foo {}; // expected-error {{missing a default argument}} expected-note {{here}} |
| #if __cplusplus < 201103L |
| // expected-error@-3 {{extension}} |
| #endif |
| |
| template<typename=void, typename X, typename, typename Y> int foo(X, Y); |
| template<typename, typename X, typename=void, typename Y> int foo(X, Y); |
| int x = foo(0, 0); |
| #if __cplusplus < 201103L |
| // expected-error@-4 {{extension}} |
| // expected-error@-4 {{extension}} |
| #endif |
| } |
| |
| void dr227(bool b) { // dr227: yes |
| if (b) |
| int n; |
| else |
| int n; |
| } |
| |
| namespace dr228 { // dr228: yes |
| template <class T> struct X { |
| void f(); |
| }; |
| template <class T> struct Y { |
| void g(X<T> x) { x.template X<T>::f(); } |
| }; |
| } |
| |
| namespace dr229 { // dr229: yes |
| template<typename T> void f(); |
| template<typename T> void f<T*>() {} // expected-error {{function template partial specialization}} |
| template<> void f<int>() {} |
| } |
| |
| namespace dr230 { // dr230: yes |
| struct S { |
| S() { f(); } // expected-warning {{call to pure virtual member function}} |
| virtual void f() = 0; // expected-note {{declared here}} |
| }; |
| } |
| |
| namespace dr231 { // dr231: yes |
| namespace outer { |
| namespace inner { |
| int i; // expected-note {{here}} |
| } |
| void f() { using namespace inner; } |
| int j = i; // expected-error {{undeclared identifier 'i'; did you mean 'inner::i'?}} |
| } |
| } |
| |
| // dr234: na |
| // dr235: na |
| |
| namespace dr236 { // dr236: yes |
| void *p = int(); |
| #if __cplusplus < 201103L |
| // expected-warning@-2 {{null pointer}} |
| #else |
| // expected-error@-4 {{cannot initialize}} |
| #endif |
| } |
| |
| namespace dr237 { // dr237: dup 470 |
| template<typename T> struct A { void f() { T::error; } }; |
| template<typename T> struct B : A<T> {}; |
| template struct B<int>; // ok |
| } |
| |
| namespace dr239 { // dr239: yes |
| namespace NS { |
| class T {}; |
| void f(T); |
| float &g(T, int); |
| } |
| NS::T parm; |
| int &g(NS::T, float); |
| int main() { |
| f(parm); |
| float &r = g(parm, 1); |
| extern int &g(NS::T, float); |
| int &s = g(parm, 1); |
| } |
| } |
| |
| // dr240: dup 616 |
| |
| namespace dr241 { // dr241: yes |
| namespace A { |
| struct B {}; |
| template <int X> void f(); // expected-note 3{{candidate}} |
| template <int X> void g(B); |
| } |
| namespace C { |
| template <class T> void f(T t); // expected-note 2{{candidate}} |
| template <class T> void g(T t); // expected-note {{candidate}} |
| } |
| void h(A::B b) { |
| f<3>(b); // expected-error 0-1{{C++2a extension}} expected-error {{no matching}} |
| g<3>(b); // expected-error 0-1{{C++2a extension}} |
| A::f<3>(b); // expected-error {{no matching}} |
| A::g<3>(b); |
| C::f<3>(b); // expected-error {{no matching}} |
| C::g<3>(b); // expected-error {{no matching}} |
| using C::f; |
| using C::g; |
| f<3>(b); // expected-error {{no matching}} |
| g<3>(b); |
| } |
| } |
| |
| namespace dr243 { // dr243: yes |
| struct B; |
| struct A { |
| A(B); // expected-note {{candidate}} |
| }; |
| struct B { |
| operator A() = delete; // expected-error 0-1{{extension}} expected-note {{candidate}} |
| } b; |
| A a1(b); |
| A a2 = b; // expected-error {{ambiguous}} |
| } |
| |
| namespace dr244 { // dr244: partial |
| struct B {}; struct D : B {}; // expected-note {{here}} |
| |
| D D_object; |
| typedef B B_alias; |
| B* B_ptr = &D_object; |
| |
| void f() { |
| D_object.~B(); // expected-error {{expression does not match the type}} |
| D_object.B::~B(); |
| B_ptr->~B(); |
| B_ptr->~B_alias(); |
| B_ptr->B_alias::~B(); |
| // This is valid under DR244. |
| B_ptr->B_alias::~B_alias(); |
| B_ptr->dr244::~B(); // expected-error {{refers to a member in namespace}} |
| B_ptr->dr244::~B_alias(); // expected-error {{refers to a member in namespace}} |
| } |
| |
| namespace N { |
| template<typename T> struct E {}; |
| typedef E<int> F; |
| } |
| void g(N::F f) { |
| typedef N::F G; |
| f.~G(); |
| f.G::~E(); |
| f.G::~F(); // expected-error {{expected the class name after '~' to name a destructor}} |
| f.G::~G(); |
| // This is technically ill-formed; E is looked up in 'N::' and names the |
| // class template, not the injected-class-name of the class. But that's |
| // probably a bug in the standard. |
| f.N::F::~E(); |
| // This is valid; we look up the second F in the same scope in which we |
| // found the first one, that is, 'N::'. |
| f.N::F::~F(); // FIXME: expected-error {{expected the class name after '~' to name a destructor}} |
| // This is technically ill-formed; G is looked up in 'N::' and is not found; |
| // as above, this is probably a bug in the standard. |
| f.N::F::~G(); |
| } |
| } |
| |
| namespace dr245 { // dr245: yes |
| struct S { |
| enum E {}; // expected-note {{here}} |
| class E *p; // expected-error {{does not match previous declaration}} |
| }; |
| } |
| |
| namespace dr246 { // dr246: yes |
| struct S { |
| S() try { // expected-note {{try block}} |
| throw 0; |
| X: ; |
| } catch (int) { |
| goto X; // expected-error {{cannot jump}} |
| } |
| }; |
| } |
| |
| namespace dr247 { // dr247: yes |
| struct A {}; |
| struct B : A { |
| void f(); |
| void f(int); |
| }; |
| void (A::*f)() = (void (A::*)())&B::f; |
| |
| struct C { |
| void f(); |
| void f(int); |
| }; |
| struct D : C {}; |
| void (C::*g)() = &D::f; |
| void (D::*h)() = &D::f; |
| |
| struct E { |
| void f(); |
| }; |
| struct F : E { |
| using E::f; |
| void f(int); |
| }; |
| void (F::*i)() = &F::f; |
| } |
| |
| namespace dr248 { // dr248: yes c++11 |
| // FIXME: Should this also apply to c++98 mode? This was a DR against C++98. |
| int \u040d\u040e = 0; |
| #if __cplusplus < 201103L |
| // FIXME: expected-error@-2 {{expected ';'}} |
| #endif |
| } |
| |
| namespace dr249 { // dr249: yes |
| template<typename T> struct X { void f(); }; |
| template<typename T> void X<T>::f() {} |
| } |
| |
| namespace dr250 { // dr250: yes |
| typedef void (*FPtr)(double x[]); |
| |
| template<int I> void f(double x[]); |
| FPtr fp = &f<3>; |
| |
| template<int I = 3> void g(double x[]); // expected-error 0-1{{extension}} |
| FPtr gp = &g<>; |
| } |
| |
| namespace dr252 { // dr252: yes |
| struct A { |
| void operator delete(void*); // expected-note {{found}} |
| }; |
| struct B { |
| void operator delete(void*); // expected-note {{found}} |
| }; |
| struct C : A, B { |
| virtual ~C(); |
| }; |
| C::~C() {} // expected-error {{'operator delete' found in multiple base classes}} |
| |
| struct D { |
| void operator delete(void*, int); // expected-note {{here}} |
| virtual ~D(); |
| }; |
| D::~D() {} // expected-error {{no suitable member 'operator delete'}} |
| |
| struct E { |
| void operator delete(void*, int); |
| void operator delete(void*) = delete; // expected-error 0-1{{extension}} expected-note 1-2 {{here}} |
| virtual ~E(); // expected-error 0-1 {{attempt to use a deleted function}} |
| }; |
| E::~E() {} // expected-error {{attempt to use a deleted function}} |
| |
| struct F { |
| // If both functions are available, the first one is a placement delete. |
| void operator delete(void*, size_t); |
| void operator delete(void*) = delete; // expected-error 0-1{{extension}} expected-note {{here}} |
| virtual ~F(); |
| }; |
| F::~F() {} // expected-error {{attempt to use a deleted function}} |
| |
| struct G { |
| void operator delete(void*, size_t); |
| virtual ~G(); |
| }; |
| G::~G() {} |
| } |
| |
| namespace dr254 { // dr254: yes |
| template<typename T> struct A { |
| typedef typename T::type type; // ok even if this is a typedef-name, because |
| // it's not an elaborated-type-specifier |
| typedef struct T::type foo; // expected-error {{typedef 'type' cannot be referenced with a struct specifier}} |
| }; |
| struct B { struct type {}; }; |
| struct C { typedef struct {} type; }; // expected-note {{here}} |
| A<B>::type n; |
| A<C>::type n; // expected-note {{instantiation of}} |
| } |
| |
| // dr256: dup 624 |
| |
| namespace dr257 { // dr257: yes |
| struct A { A(int); }; // expected-note {{here}} |
| struct B : virtual A { |
| B() {} |
| virtual void f() = 0; |
| }; |
| struct C : B { |
| C() {} |
| }; |
| struct D : B { |
| D() {} // expected-error {{must explicitly initialize the base class 'dr257::A'}} |
| void f(); |
| }; |
| } |
| |
| namespace dr258 { // dr258: yes |
| struct A { |
| void f(const int); |
| template<typename> void g(int); |
| float &h() const; |
| }; |
| struct B : A { |
| using A::f; |
| using A::g; |
| using A::h; |
| int &f(int); |
| template<int> int &g(int); // expected-note {{candidate}} |
| int &h(); |
| } b; |
| int &w = b.f(0); |
| int &x = b.g<int>(0); // expected-error {{no match}} |
| int &y = b.h(); |
| float &z = const_cast<const B&>(b).h(); |
| |
| struct C { |
| virtual void f(const int) = 0; |
| }; |
| struct D : C { |
| void f(int); |
| } d; |
| |
| struct E { |
| virtual void f() = 0; // expected-note {{unimplemented}} |
| }; |
| struct F : E { |
| void f() const {} |
| } f; // expected-error {{abstract}} |
| } |
| |
| namespace dr259 { // dr259: 4 |
| template<typename T> struct A {}; |
| template struct A<int>; // expected-note {{previous}} |
| template struct A<int>; // expected-error {{duplicate explicit instantiation}} |
| |
| template<> struct A<float>; // expected-note {{previous}} |
| template struct A<float>; // expected-warning {{has no effect}} |
| |
| template struct A<char>; // expected-note {{here}} |
| template<> struct A<char>; // expected-error {{explicit specialization of 'dr259::A<char>' after instantiation}} |
| |
| template<> struct A<double>; |
| template<> struct A<double>; |
| template<> struct A<double> {}; // expected-note {{here}} |
| template<> struct A<double> {}; // expected-error {{redefinition}} |
| |
| template<typename T> struct B; // expected-note {{here}} |
| template struct B<int>; // expected-error {{undefined}} |
| |
| template<> struct B<float>; // expected-note {{previous}} |
| template struct B<float>; // expected-warning {{has no effect}} |
| } |
| |
| // FIXME: When dr260 is resolved, also add tests for DR507. |
| |
| namespace dr261 { // dr261: no |
| #pragma clang diagnostic push |
| #pragma clang diagnostic warning "-Wused-but-marked-unused" |
| |
| // FIXME: This is ill-formed, with a diagnostic required, because operator new |
| // and operator delete are inline and odr-used, but not defined in this |
| // translation unit. |
| // We're also missing the -Wused-but-marked-unused diagnostic here. |
| struct A { |
| inline void *operator new(size_t) __attribute__((unused)); |
| inline void operator delete(void*) __attribute__((unused)); |
| A() {} |
| }; |
| |
| // FIXME: This is ill-formed, with a required diagnostic, for the same |
| // reason. |
| struct B { |
| inline void operator delete(void*) __attribute__((unused)); |
| ~B() {} |
| }; |
| struct C { |
| inline void operator delete(void*) __attribute__((unused)); |
| virtual ~C() {} // expected-warning {{'operator delete' was marked unused but was used}} |
| }; |
| |
| struct D { |
| inline void operator delete(void*) __attribute__((unused)); |
| }; |
| void h() { C::operator delete(0); } // expected-warning {{marked unused but was used}} |
| |
| #pragma clang diagnostic pop |
| } |
| |
| namespace dr262 { // dr262: yes |
| int f(int = 0, ...); |
| int k = f(); |
| int l = f(0); |
| int m = f(0, 0); |
| } |
| |
| namespace dr263 { // dr263: yes |
| struct X {}; |
| struct Y { |
| #if __cplusplus < 201103L |
| friend X::X() throw(); |
| friend X::~X() throw(); |
| #elif __cplusplus <= 201703L |
| friend constexpr X::X() noexcept; |
| friend X::~X(); |
| #else |
| friend constexpr X::X() noexcept; |
| friend constexpr X::~X(); |
| #endif |
| Y::Y(); // expected-error {{extra qualification}} |
| Y::~Y(); // expected-error {{extra qualification}} |
| }; |
| } |
| |
| // dr265: dup 353 |
| // dr266: na |
| // dr269: na |
| // dr270: na |
| |
| namespace dr272 { // dr272: yes |
| struct X { |
| void f() { |
| this->~X(); |
| X::~X(); |
| ~X(); // expected-error {{unary expression}} |
| } |
| }; |
| } |
| |
| #include <stdarg.h> |
| #include <stddef.h> |
| namespace dr273 { // dr273: yes |
| struct A { |
| int n; |
| }; |
| void operator&(A); |
| void f(A a, ...) { |
| offsetof(A, n); |
| va_list val; |
| va_start(val, a); |
| va_end(val); |
| } |
| } |
| |
| // dr274: na |
| |
| namespace dr275 { // dr275: no |
| namespace N { |
| template <class T> void f(T) {} // expected-note 1-4{{here}} |
| template <class T> void g(T) {} // expected-note {{candidate}} |
| template <> void f(int); |
| template <> void f(char); |
| template <> void f(double); |
| template <> void g(char); |
| } |
| |
| using namespace N; |
| |
| namespace M { |
| template <> void N::f(char) {} // expected-error {{'M' does not enclose namespace 'N'}} |
| template <class T> void g(T) {} |
| template <> void g(char) {} |
| template void f(long); |
| #if __cplusplus >= 201103L |
| // FIXME: this should be rejected in c++98 too |
| // expected-error@-3 {{must occur in namespace 'N'}} |
| #endif |
| template void N::f(unsigned long); |
| #if __cplusplus >= 201103L |
| // FIXME: this should be rejected in c++98 too |
| // expected-error@-3 {{not in a namespace enclosing 'N'}} |
| #endif |
| template void h(long); // expected-error {{does not refer to a function template}} |
| template <> void f(double) {} // expected-error {{no function template matches}} |
| } |
| |
| template <class T> void g(T) {} // expected-note {{candidate}} |
| |
| template <> void N::f(char) {} |
| template <> void f(int) {} // expected-error {{no function template matches}} |
| |
| template void f(short); |
| #if __cplusplus >= 201103L |
| // FIXME: this should be rejected in c++98 too |
| // expected-error@-3 {{must occur in namespace 'N'}} |
| #endif |
| template void N::f(unsigned short); |
| |
| // FIXME: this should probably be valid. the wording from the issue |
| // doesn't clarify this, but it follows from the usual rules. |
| template void g(int); // expected-error {{ambiguous}} |
| |
| // FIXME: likewise, this should also be valid. |
| template<typename T> void f(T) {} // expected-note {{candidate}} |
| template void f(short); // expected-error {{ambiguous}} |
| } |
| |
| // dr276: na |
| |
| namespace dr277 { // dr277: yes |
| typedef int *intp; |
| int *p = intp(); |
| int a[fold(intp() ? -1 : 1)]; |
| } |
| |
| namespace dr280 { // dr280: yes |
| typedef void f0(); |
| typedef void f1(int); |
| typedef void f2(int, int); |
| typedef void f3(int, int, int); |
| struct A { |
| operator f1*(); // expected-note {{here}} expected-note {{candidate}} |
| operator f2*(); |
| }; |
| struct B { |
| operator f0*(); // expected-note {{candidate}} |
| private: |
| operator f3*(); // expected-note {{here}} expected-note {{candidate}} |
| }; |
| struct C { |
| operator f0*(); // expected-note {{candidate}} |
| operator f1*(); // expected-note {{candidate}} |
| operator f2*(); // expected-note {{candidate}} |
| operator f3*(); // expected-note {{candidate}} |
| }; |
| struct D : private A, B { // expected-note 2{{here}} |
| operator f2*(); // expected-note {{candidate}} |
| } d; |
| struct E : C, D {} e; |
| void g() { |
| d(); // ok, public |
| d(0); // expected-error {{private member of 'dr280::A'}} expected-error {{private base class 'dr280::A'}} |
| d(0, 0); // ok, suppressed by member in D |
| d(0, 0, 0); // expected-error {{private member of 'dr280::B'}} |
| e(); // expected-error {{ambiguous}} |
| e(0); // expected-error {{ambiguous}} |
| e(0, 0); // expected-error {{ambiguous}} |
| e(0, 0, 0); // expected-error {{ambiguous}} |
| } |
| } |
| |
| namespace dr281 { // dr281: no |
| void a(); |
| inline void b(); |
| |
| void d(); |
| inline void e(); |
| |
| struct S { |
| friend inline void a(); // FIXME: ill-formed |
| friend inline void b(); |
| friend inline void c(); // FIXME: ill-formed |
| friend inline void d() {} |
| friend inline void e() {} |
| friend inline void f() {} |
| }; |
| } |
| |
| namespace dr283 { // dr283: yes |
| template<typename T> // expected-note 2{{here}} |
| struct S { |
| friend class T; // expected-error {{shadows}} |
| class T; // expected-error {{shadows}} |
| }; |
| } |
| |
| namespace dr284 { // dr284: no |
| namespace A { |
| struct X; |
| enum Y {}; |
| class Z {}; |
| } |
| namespace B { |
| struct W; |
| using A::X; |
| using A::Y; |
| using A::Z; |
| } |
| struct B::V {}; // expected-error {{no struct named 'V'}} |
| struct B::W {}; |
| struct B::X {}; // FIXME: ill-formed |
| enum B::Y e; // ok per dr417 |
| class B::Z z; // ok per dr417 |
| |
| struct C { |
| struct X; |
| enum Y {}; |
| class Z {}; |
| }; |
| struct D : C { |
| struct W; |
| using C::X; |
| using C::Y; |
| using C::Z; |
| }; |
| struct D::V {}; // expected-error {{no struct named 'V'}} |
| struct D::W {}; |
| struct D::X {}; // FIXME: ill-formed |
| enum D::Y e2; // ok per dr417 |
| class D::Z z2; // ok per dr417 |
| } |
| |
| namespace dr285 { // dr285: yes |
| template<typename T> void f(T, int); // expected-note {{match}} |
| template<typename T> void f(int, T); // expected-note {{match}} |
| template<> void f<int>(int, int) {} // expected-error {{ambiguous}} |
| } |
| |
| namespace dr286 { // dr286: yes |
| template<class T> struct A { |
| class C { |
| template<class T2> struct B {}; // expected-note {{here}} |
| }; |
| }; |
| |
| template<class T> |
| template<class T2> |
| struct A<T>::C::B<T2*> { }; |
| |
| A<short>::C::B<int*> absip; // expected-error {{private}} |
| } |
| |
| // dr288: na |
| |
| namespace dr289 { // dr289: yes |
| struct A; // expected-note {{forward}} |
| struct B : A {}; // expected-error {{incomplete}} |
| |
| template<typename T> struct C { typename T::error error; }; // expected-error {{cannot be used prior to '::'}} |
| struct D : C<int> {}; // expected-note {{instantiation}} |
| } |
| |
| // dr290: na |
| // dr291: dup 391 |
| // dr292 FIXME: write a codegen test |
| |
| namespace dr294 { // dr294: no |
| void f() throw(int); |
| #if __cplusplus > 201402L |
| // expected-error@-2 {{ISO C++17 does not allow}} expected-note@-2 {{use 'noexcept}} |
| #endif |
| int main() { |
| (void)static_cast<void (*)() throw()>(f); // FIXME: ill-formed in C++14 and before |
| #if __cplusplus > 201402L |
| // FIXME: expected-error@-2 {{not allowed}} |
| // |
| // Irony: the above is valid in C++17 and beyond, but that's exactly when |
| // we reject it. In C++14 and before, this is ill-formed because an |
| // exception-specification is not permitted in a type-id. In C++17, this is |
| // valid because it's the inverse of a standard conversion sequence |
| // containing a function pointer conversion. (Well, it's actually not valid |
| // yet, as a static_cast is not permitted to reverse a function pointer |
| // conversion, but that is being changed by core issue). |
| #endif |
| (void)static_cast<void (*)() throw(int)>(f); // FIXME: ill-formed in C++14 and before |
| #if __cplusplus > 201402L |
| // expected-error@-2 {{ISO C++17 does not allow}} expected-note@-2 {{use 'noexcept}} |
| #endif |
| |
| void (*p)() throw() = f; // expected-error-re {{{{not superset|different exception specification}}}} |
| void (*q)() throw(int) = f; |
| #if __cplusplus > 201402L |
| // expected-error@-2 {{ISO C++17 does not allow}} expected-note@-2 {{use 'noexcept}} |
| #endif |
| } |
| } |
| |
| namespace dr295 { // dr295: 3.7 |
| typedef int f(); |
| const f g; // expected-warning {{'const' qualifier on function type 'dr295::f' (aka 'int ()') has no effect}} |
| f &r = g; |
| template<typename T> struct X { |
| const T &f; |
| }; |
| X<f> x = {g}; |
| |
| typedef int U(); |
| typedef const U U; // expected-warning {{'const' qualifier on function type 'dr295::U' (aka 'int ()') has no effect}} |
| |
| typedef int (*V)(); |
| typedef volatile U *V; // expected-warning {{'volatile' qualifier on function type 'dr295::U' (aka 'int ()') has no effect}} |
| } |
| |
| namespace dr296 { // dr296: yes |
| struct A { |
| static operator int() { return 0; } // expected-error {{static}} |
| }; |
| } |
| |
| namespace dr298 { // dr298: yes |
| struct A { |
| typedef int type; |
| A(); |
| ~A(); |
| }; |
| typedef A B; // expected-note {{here}} |
| typedef const A C; // expected-note {{here}} |
| |
| A::type i1; |
| B::type i2; |
| C::type i3; |
| |
| struct A a; |
| struct B b; // expected-error {{typedef 'B' cannot be referenced with a struct specifier}} |
| struct C c; // expected-error {{typedef 'C' cannot be referenced with a struct specifier}} |
| |
| B::B() {} // expected-error {{requires a type specifier}} |
| B::A() {} // ok |
| C::~C() {} // expected-error {{destructor cannot be declared using a typedef 'dr298::C' (aka 'const dr298::A') of the class name}} |
| |
| typedef struct D E; // expected-note {{here}} |
| struct E {}; // expected-error {{conflicts with typedef}} |
| |
| struct F { |
| ~F(); |
| }; |
| typedef const F G; |
| G::~F() {} // ok |
| } |
| |
| namespace dr299 { // dr299: yes c++11 |
| struct S { |
| operator int(); |
| }; |
| struct T { |
| operator int(); // expected-note {{}} |
| operator unsigned short(); // expected-note {{}} |
| }; |
| // FIXME: should this apply to c++98 mode? |
| int *p = new int[S()]; // expected-error 0-1{{extension}} |
| int *q = new int[T()]; // expected-error {{ambiguous}} |
| } |