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-rw-r--r--test/CXX/drs/dr0xx.cpp1144
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diff --git a/test/CXX/drs/dr0xx.cpp b/test/CXX/drs/dr0xx.cpp
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index 048187814db6..000000000000
--- a/test/CXX/drs/dr0xx.cpp
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@@ -1,1144 +0,0 @@
-// RUN: %clang_cc1 -std=c++98 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors -Wno-bind-to-temporary-copy
-// RUN: %clang_cc1 -std=c++11 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors -triple %itanium_abi_triple
-// RUN: %clang_cc1 -std=c++14 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors -triple %itanium_abi_triple
-// RUN: %clang_cc1 -std=c++17 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors -triple %itanium_abi_triple
-
-namespace dr1 { // dr1: no
- namespace X { extern "C" void dr1_f(int a = 1); }
- namespace Y { extern "C" void dr1_f(int a = 1); }
- using X::dr1_f; using Y::dr1_f;
- void g() {
- dr1_f(0);
- // FIXME: This should be rejected, due to the ambiguous default argument.
- dr1_f();
- }
- namespace X {
- using Y::dr1_f;
- void h() {
- dr1_f(0);
- // FIXME: This should be rejected, due to the ambiguous default argument.
- dr1_f();
- }
- }
-
- namespace X {
- void z(int);
- }
- void X::z(int = 1) {} // expected-note {{previous}}
- namespace X {
- void z(int = 1); // expected-error {{redefinition of default argument}}
- }
-
- void i(int = 1);
- void j() {
- void i(int = 1);
- using dr1::i;
- i(0);
- // FIXME: This should be rejected, due to the ambiguous default argument.
- i();
- }
- void k() {
- using dr1::i;
- void i(int = 1);
- i(0);
- // FIXME: This should be rejected, due to the ambiguous default argument.
- i();
- }
-}
-
-namespace dr3 { // dr3: yes
- template<typename T> struct A {};
- template<typename T> void f(T) { A<T> a; } // expected-note {{implicit instantiation}}
- template void f(int);
- template<> struct A<int> {}; // expected-error {{explicit specialization of 'dr3::A<int>' after instantiation}}
-}
-
-namespace dr4 { // dr4: yes
- extern "C" {
- static void dr4_f(int) {}
- static void dr4_f(float) {}
- void dr4_g(int) {} // expected-note {{previous}}
- void dr4_g(float) {} // expected-error {{conflicting types}}
- }
-}
-
-namespace dr5 { // dr5: yes
- struct A {} a;
- struct B {
- B(const A&);
- B(const B&);
- };
- const volatile B b = a;
-
- struct C { C(C&); };
- struct D : C {};
- struct E { operator D&(); } e;
- const C c = e;
-}
-
-namespace dr7 { // dr7: yes
- class A { public: ~A(); };
- class B : virtual private A {}; // expected-note 2 {{declared private here}}
- class C : public B {} c; // expected-error 2 {{inherited virtual base class 'dr7::A' has private destructor}} \
- // expected-note {{implicit default constructor for 'dr7::C' first required here}} \
- // expected-note {{implicit destructor for 'dr7::C' first required here}}
- class VeryDerivedC : public B, virtual public A {} vdc;
-
- class X { ~X(); }; // expected-note {{here}}
- class Y : X { ~Y() {} }; // expected-error {{private destructor}}
-
- namespace PR16370 { // This regressed the first time DR7 was fixed.
- struct S1 { virtual ~S1(); };
- struct S2 : S1 {};
- struct S3 : S2 {};
- struct S4 : virtual S2 {};
- struct S5 : S3, S4 {
- S5();
- ~S5();
- };
- S5::S5() {}
- }
-}
-
-namespace dr8 { // dr8: dup 45
- class A {
- struct U;
- static const int k = 5;
- void f();
- template<typename, int, void (A::*)()> struct T;
-
- T<U, k, &A::f> *g();
- };
- A::T<A::U, A::k, &A::f> *A::g() { return 0; }
-}
-
-namespace dr9 { // dr9: yes
- struct B {
- protected:
- int m; // expected-note {{here}}
- friend int R1();
- };
- struct N : protected B { // expected-note 2{{protected}}
- friend int R2();
- } n;
- int R1() { return n.m; } // expected-error {{protected base class}} expected-error {{protected member}}
- int R2() { return n.m; }
-}
-
-namespace dr10 { // dr10: dup 45
- class A {
- struct B {
- A::B *p;
- };
- };
-}
-
-namespace dr11 { // dr11: yes
- template<typename T> struct A : T {
- using typename T::U;
- U u;
- };
- template<typename T> struct B : T {
- using T::V;
- V v; // expected-error {{unknown type name}}
- };
- struct X { typedef int U; };
- A<X> ax;
-}
-
-namespace dr12 { // dr12: sup 239
- enum E { e };
- E &f(E, E = e);
- void g() {
- int &f(int, E = e);
- // Under DR12, these call two different functions.
- // Under DR239, they call the same function.
- int &b = f(e);
- int &c = f(1);
- }
-}
-
-namespace dr13 { // dr13: no
- extern "C" void f(int);
- void g(char);
-
- template<typename T> struct A {
- A(void (*fp)(T));
- };
- template<typename T> int h(void (T));
-
- A<int> a1(f); // FIXME: We should reject this.
- A<char> a2(g);
- int a3 = h(f); // FIXME: We should reject this.
- int a4 = h(g);
-}
-
-namespace dr14 { // dr14: yes
- namespace X { extern "C" int dr14_f(); }
- namespace Y { extern "C" int dr14_f(); }
- using namespace X;
- using namespace Y;
- int k = dr14_f();
-
- class C {
- int k;
- friend int Y::dr14_f();
- } c;
- namespace Z {
- extern "C" int dr14_f() { return c.k; }
- }
-
- namespace X { typedef int T; typedef int U; } // expected-note {{candidate}}
- namespace Y { typedef int T; typedef long U; } // expected-note {{candidate}}
- T t; // ok, same type both times
- U u; // expected-error {{ambiguous}}
-}
-
-namespace dr15 { // dr15: yes
- template<typename T> void f(int); // expected-note {{previous}}
- template<typename T> void f(int = 0); // expected-error {{default arguments cannot be added}}
-}
-
-namespace dr16 { // dr16: yes
- class A { // expected-note {{here}}
- void f(); // expected-note {{here}}
- friend class C;
- };
- class B : A {}; // expected-note 4{{here}}
- class C : B {
- void g() {
- f(); // expected-error {{private member}} expected-error {{private base}}
- A::f(); // expected-error {{private member}} expected-error {{private base}}
- }
- };
-}
-
-namespace dr17 { // dr17: yes
- class A {
- int n;
- int f();
- struct C;
- };
- struct B : A {} b;
- int A::f() { return b.n; }
- struct A::C : A {
- int g() { return n; }
- };
-}
-
-// dr18: sup 577
-
-namespace dr19 { // dr19: yes
- struct A {
- int n; // expected-note {{here}}
- };
- struct B : protected A { // expected-note {{here}}
- };
- struct C : B {} c;
- struct D : B {
- int get1() { return c.n; } // expected-error {{protected member}}
- int get2() { return ((A&)c).n; } // ok, A is an accessible base of B from here
- };
-}
-
-namespace dr20 { // dr20: yes
- class X {
- public:
- X();
- private:
- X(const X&); // expected-note {{here}}
- };
- X &f();
- X x = f(); // expected-error {{private}}
-}
-
-namespace dr21 { // dr21: yes
- template<typename T> struct A;
- struct X {
- template<typename T = int> friend struct A; // expected-error {{default template argument not permitted on a friend template}}
- template<typename T = int> friend struct B; // expected-error {{default template argument not permitted on a friend template}}
- };
-}
-
-namespace dr22 { // dr22: sup 481
- template<typename dr22_T = dr22_T> struct X; // expected-error {{unknown type name 'dr22_T'}}
- typedef int T;
- template<typename T = T> struct Y;
-}
-
-namespace dr23 { // dr23: yes
- template<typename T> void f(T, T); // expected-note {{candidate}}
- template<typename T> void f(T, int); // expected-note {{candidate}}
- void g() { f(0, 0); } // expected-error {{ambiguous}}
-}
-
-// dr24: na
-
-namespace dr25 { // dr25: yes
- struct A {
- void f() throw(int); // expected-error 0-1{{ISO C++17 does not allow}} expected-note 0-1{{use 'noexcept}}
- };
- void (A::*f)() throw (int); // expected-error 0-1{{ISO C++17 does not allow}} expected-note 0-1{{use 'noexcept}}
- void (A::*g)() throw () = f;
-#if __cplusplus <= 201402L
- // expected-error@-2 {{is not superset of source}}
-#else
- // expected-error@-4 {{different exception specifications}}
-#endif
- void (A::*g2)() throw () = 0;
- void (A::*h)() throw (int, char) = f; // expected-error 0-1{{ISO C++17 does not allow}} expected-note 0-1{{use 'noexcept}}
- void (A::*i)() throw () = &A::f;
-#if __cplusplus <= 201402L
- // expected-error@-2 {{is not superset of source}}
-#else
- // expected-error@-4 {{different exception specifications}}
-#endif
- void (A::*i2)() throw () = 0;
- void (A::*j)() throw (int, char) = &A::f; // expected-error 0-1{{ISO C++17 does not allow}} expected-note 0-1{{use 'noexcept}}
- void x() {
- g2 = f;
-#if __cplusplus <= 201402L
- // expected-error@-2 {{is not superset of source}}
-#else
- // expected-error@-4 {{different exception specifications}}
-#endif
- h = f;
- i2 = &A::f;
-#if __cplusplus <= 201402L
- // expected-error@-2 {{is not superset of source}}
-#else
- // expected-error@-4 {{different exception specifications}}
-#endif
- j = &A::f;
- }
-}
-
-namespace dr26 { // dr26: yes
- struct A { A(A, const A & = A()); }; // expected-error {{must pass its first argument by reference}}
- struct B {
- B(); // expected-note 0-1{{candidate}}
- B(const B &, B = B());
-#if __cplusplus <= 201402L
- // expected-error@-2 {{no matching constructor}} expected-note@-2 {{candidate}} expected-note@-2 {{here}}
-#endif
- };
- struct C {
- static C &f();
- C(const C &, C = f()); // expected-error {{no matching constructor}} expected-note {{candidate}} expected-note {{here}}
- };
-}
-
-namespace dr27 { // dr27: yes
- enum E { e } n;
- E &m = true ? n : n;
-}
-
-// dr28: na lib
-
-namespace dr29 { // dr29: 3.4
- void dr29_f0(); // expected-note {{here}}
- void g0() { void dr29_f0(); }
- extern "C++" void g0_cxx() { void dr29_f0(); }
- extern "C" void g0_c() { void dr29_f0(); } // expected-error {{different language linkage}}
-
- extern "C" void dr29_f1(); // expected-note {{here}}
- void g1() { void dr29_f1(); }
- extern "C" void g1_c() { void dr29_f1(); }
- extern "C++" void g1_cxx() { void dr29_f1(); } // expected-error {{different language linkage}}
-
- void g2() { void dr29_f2(); } // expected-note {{here}}
- extern "C" void dr29_f2(); // expected-error {{different language linkage}}
-
- extern "C" void g3() { void dr29_f3(); } // expected-note {{here}}
- extern "C++" void dr29_f3(); // expected-error {{different language linkage}}
-
- extern "C++" void g4() { void dr29_f4(); } // expected-note {{here}}
- extern "C" void dr29_f4(); // expected-error {{different language linkage}}
-
- extern "C" void g5();
- extern "C++" void dr29_f5();
- void g5() {
- void dr29_f5(); // ok, g5 is extern "C" but we're not inside the linkage-specification here.
- }
-
- extern "C++" void g6();
- extern "C" void dr29_f6();
- void g6() {
- void dr29_f6(); // ok, g6 is extern "C" but we're not inside the linkage-specification here.
- }
-
- extern "C" void g7();
- extern "C++" void dr29_f7(); // expected-note {{here}}
- extern "C" void g7() {
- void dr29_f7(); // expected-error {{different language linkage}}
- }
-
- extern "C++" void g8();
- extern "C" void dr29_f8(); // expected-note {{here}}
- extern "C++" void g8() {
- void dr29_f8(); // expected-error {{different language linkage}}
- }
-}
-
-namespace dr30 { // dr30: sup 468 c++11
- struct A {
- template<int> static int f();
- } a, *p = &a;
- int x = A::template f<0>();
- int y = a.template f<0>();
- int z = p->template f<0>();
-#if __cplusplus < 201103L
- // FIXME: It's not clear whether DR468 applies to C++98 too.
- // expected-error@-5 {{'template' keyword outside of a template}}
- // expected-error@-5 {{'template' keyword outside of a template}}
- // expected-error@-5 {{'template' keyword outside of a template}}
-#endif
-}
-
-namespace dr31 { // dr31: yes
- class X {
- private:
- void operator delete(void*); // expected-note {{here}}
- };
- // We would call X::operator delete if X() threw (even though it can't,
- // and even though we allocated the X using ::operator delete).
- X *p = new X; // expected-error {{private}}
-}
-
-// dr32: na
-
-namespace dr33 { // dr33: yes
- namespace X { struct S; void f(void (*)(S)); } // expected-note {{candidate}}
- namespace Y { struct T; void f(void (*)(T)); } // expected-note {{candidate}}
- void g(X::S);
- template<typename Z> Z g(Y::T);
- void h() { f(&g); } // expected-error {{ambiguous}}
-}
-
-// dr34: na
-// dr35: dup 178
-// dr37: sup 475
-
-namespace dr38 { // dr38: yes
- template<typename T> struct X {};
- template<typename T> X<T> operator+(X<T> a, X<T> b) { return a; }
- template X<int> operator+<int>(X<int>, X<int>);
-}
-
-namespace dr39 { // dr39: no
- namespace example1 {
- struct A { int &f(int); };
- struct B : A {
- using A::f;
- float &f(float);
- } b;
- int &r = b.f(0);
- }
-
- namespace example2 {
- struct A {
- int &x(int); // expected-note {{found}}
- static int &y(int); // expected-note {{found}}
- };
- struct V {
- int &z(int);
- };
- struct B : A, virtual V {
- using A::x; // expected-note {{found}}
- float &x(float);
- using A::y; // expected-note {{found}}
- static float &y(float);
- using V::z;
- float &z(float);
- };
- struct C : A, B, virtual V {} c; // expected-warning {{direct base 'dr39::example2::A' is inaccessible due to ambiguity:\n struct dr39::example2::C -> struct dr39::example2::A\n struct dr39::example2::C -> struct dr39::example2::B -> struct dr39::example2::A}}
- int &x = c.x(0); // expected-error {{found in multiple base classes}}
- // FIXME: This is valid, because we find the same static data member either way.
- int &y = c.y(0); // expected-error {{found in multiple base classes}}
- int &z = c.z(0);
- }
-
- namespace example3 {
- struct A { static int f(); };
- struct B : virtual A { using A::f; };
- struct C : virtual A { using A::f; };
- struct D : B, C {} d;
- int k = d.f();
- }
-
- namespace example4 {
- struct A { int n; }; // expected-note {{found}}
- struct B : A {};
- struct C : A {};
- struct D : B, C { int f() { return n; } }; // expected-error {{found in multiple base-class}}
- }
-
- namespace PR5916 {
- // FIXME: This is valid.
- struct A { int n; }; // expected-note +{{found}}
- struct B : A {};
- struct C : A {};
- struct D : B, C {};
- int k = sizeof(D::n); // expected-error {{found in multiple base}} expected-error {{unknown type name}}
-#if __cplusplus >= 201103L
- decltype(D::n) n; // expected-error {{found in multiple base}}
-#endif
- }
-}
-
-// dr40: na
-
-namespace dr41 { // dr41: yes
- struct S f(S);
-}
-
-namespace dr42 { // dr42: yes
- struct A { static const int k = 0; };
- struct B : A { static const int k = A::k; };
-}
-
-// dr43: na
-
-namespace dr44 { // dr44: sup 727
- struct A {
- template<int> void f();
- template<> void f<0>();
- };
-}
-
-namespace dr45 { // dr45: yes
- class A {
- class B {};
- class C : B {};
- C c;
- };
-}
-
-namespace dr46 { // dr46: yes
- template<typename> struct A { template<typename> struct B {}; };
- template template struct A<int>::B<int>; // expected-error {{expected unqualified-id}}
-}
-
-namespace dr47 { // dr47: sup 329
- template<typename T> struct A {
- friend void f() { T t; } // expected-error {{redefinition}} expected-note {{previous}}
- };
- A<int> a;
- A<float> b; // expected-note {{instantiation of}}
-
- void f();
- void g() { f(); }
-}
-
-namespace dr48 { // dr48: yes
- namespace {
- struct S {
- static const int m = 0;
- static const int n = 0;
- static const int o = 0;
- };
- }
- int a = S::m;
- // FIXME: We should produce a 'has internal linkage but is not defined'
- // diagnostic for 'S::n'.
- const int &b = S::n;
- const int S::o;
- const int &c = S::o;
-}
-
-namespace dr49 { // dr49: yes
- template<int*> struct A {}; // expected-note 0-2{{here}}
- int k;
-#if __has_feature(cxx_constexpr)
- constexpr
-#endif
- int *const p = &k; // expected-note 0-2{{here}}
- A<&k> a;
- A<p> b;
-#if __cplusplus <= 201402L
- // expected-error@-2 {{must have its address taken}}
-#endif
-#if __cplusplus < 201103L
- // expected-error@-5 {{internal linkage}}
-#endif
- int *q = &k;
- A<q> c;
-#if __cplusplus < 201103L
- // expected-error@-2 {{must have its address taken}}
-#else
- // expected-error@-4 {{constant expression}}
- // expected-note@-5 {{read of non-constexpr}}
- // expected-note@-7 {{declared here}}
-#endif
-}
-
-namespace dr50 { // dr50: yes
- struct X; // expected-note {{forward}}
- extern X *p;
- X *q = (X*)p;
- X *r = static_cast<X*>(p);
- X *s = const_cast<X*>(p);
- X *t = reinterpret_cast<X*>(p);
- X *u = dynamic_cast<X*>(p); // expected-error {{incomplete}}
-}
-
-namespace dr51 { // dr51: yes
- struct A {};
- struct B : A {};
- struct S {
- operator A&();
- operator B&();
- } s;
- A &a = s;
-}
-
-namespace dr52 { // dr52: yes
- struct A { int n; }; // expected-note {{here}}
- struct B : private A {} b; // expected-note 2{{private}}
- // FIXME: This first diagnostic is very strangely worded, and seems to be bogus.
- int k = b.A::n; // expected-error {{'A' is a private member of 'dr52::A'}}
- // expected-error@-1 {{cannot cast 'struct B' to its private base}}
-}
-
-namespace dr53 { // dr53: yes
- int n = 0;
- enum E { e } x = static_cast<E>(n);
-}
-
-namespace dr54 { // dr54: yes
- struct A { int a; } a;
- struct V { int v; } v;
- struct B : private A, virtual V { int b; } b; // expected-note 6{{private here}}
-
- A &sab = static_cast<A&>(b); // expected-error {{private base}}
- A *spab = static_cast<A*>(&b); // expected-error {{private base}}
- int A::*smab = static_cast<int A::*>(&B::b); // expected-error {{private base}}
- B &sba = static_cast<B&>(a); // expected-error {{private base}}
- B *spba = static_cast<B*>(&a); // expected-error {{private base}}
- int B::*smba = static_cast<int B::*>(&A::a); // expected-error {{private base}}
-
- V &svb = static_cast<V&>(b);
- V *spvb = static_cast<V*>(&b);
- int V::*smvb = static_cast<int V::*>(&B::b); // expected-error {{virtual base}}
- B &sbv = static_cast<B&>(v); // expected-error {{virtual base}}
- B *spbv = static_cast<B*>(&v); // expected-error {{virtual base}}
- int B::*smbv = static_cast<int B::*>(&V::v); // expected-error {{virtual base}}
-
- A &cab = (A&)(b);
- A *cpab = (A*)(&b);
- int A::*cmab = (int A::*)(&B::b);
- B &cba = (B&)(a);
- B *cpba = (B*)(&a);
- int B::*cmba = (int B::*)(&A::a);
-
- V &cvb = (V&)(b);
- V *cpvb = (V*)(&b);
- int V::*cmvb = (int V::*)(&B::b); // expected-error {{virtual base}}
- B &cbv = (B&)(v); // expected-error {{virtual base}}
- B *cpbv = (B*)(&v); // expected-error {{virtual base}}
- int B::*cmbv = (int B::*)(&V::v); // expected-error {{virtual base}}
-}
-
-namespace dr55 { // dr55: yes
- enum E { e = 5 };
- int test[(e + 1 == 6) ? 1 : -1];
-}
-
-namespace dr56 { // dr56: yes
- struct A {
- typedef int T; // expected-note {{previous}}
- typedef int T; // expected-error {{redefinition}}
- };
- struct B {
- struct X;
- typedef X X; // expected-note {{previous}}
- typedef X X; // expected-error {{redefinition}}
- };
-}
-
-namespace dr58 { // dr58: yes
- // FIXME: Ideally, we should have a CodeGen test for this.
-#if __cplusplus >= 201103L
- enum E1 { E1_0 = 0, E1_1 = 1 };
- enum E2 { E2_0 = 0, E2_m1 = -1 };
- struct X { E1 e1 : 1; E2 e2 : 1; };
- static_assert(X{E1_1, E2_m1}.e1 == 1, "");
- static_assert(X{E1_1, E2_m1}.e2 == -1, "");
-#endif
-}
-
-namespace dr59 { // dr59: yes
- template<typename T> struct convert_to { operator T() const; };
- struct A {}; // expected-note 5+{{candidate}}
- struct B : A {}; // expected-note 0+{{candidate}}
-
- A a1 = convert_to<A>();
- A a2 = convert_to<A&>();
- A a3 = convert_to<const A>();
- A a4 = convert_to<const volatile A>();
-#if __cplusplus <= 201402L
- // expected-error@-2 {{no viable}}
-#endif
- A a5 = convert_to<const volatile A&>(); // expected-error {{no viable}}
-
- B b1 = convert_to<B>();
- B b2 = convert_to<B&>();
- B b3 = convert_to<const B>();
- B b4 = convert_to<const volatile B>();
-#if __cplusplus <= 201402L
- // expected-error@-2 {{no viable}}
-#endif
- B b5 = convert_to<const volatile B&>(); // expected-error {{no viable}}
-
- A c1 = convert_to<B>();
- A c2 = convert_to<B&>();
- A c3 = convert_to<const B>();
- A c4 = convert_to<const volatile B>(); // expected-error {{no viable}}
- A c5 = convert_to<const volatile B&>(); // expected-error {{no viable}}
-
- int n1 = convert_to<int>();
- int n2 = convert_to<int&>();
- int n3 = convert_to<const int>();
- int n4 = convert_to<const volatile int>();
- int n5 = convert_to<const volatile int&>();
-}
-
-namespace dr60 { // dr60: yes
- void f(int &);
- int &f(...);
- const int k = 0;
- int &n = f(k);
-}
-
-namespace dr61 { // dr61: yes
- struct X {
- static void f();
- } x;
- struct Y {
- static void f();
- static void f(int);
- } y;
- // This is (presumably) valid, because x.f does not refer to an overloaded
- // function name.
- void (*p)() = &x.f;
- void (*q)() = &y.f; // expected-error {{cannot create a non-constant pointer to member function}}
- void (*r)() = y.f; // expected-error {{cannot create a non-constant pointer to member function}}
-}
-
-namespace dr62 { // dr62: yes
- struct A {
- struct { int n; } b;
- };
- template<typename T> struct X {};
- template<typename T> T get() { return get<T>(); }
- template<typename T> int take(T) { return 0; }
-
- X<A> x1;
- A a = get<A>();
-
- typedef struct { } *NoNameForLinkagePtr;
-#if __cplusplus < 201103L
- // expected-note@-2 5{{here}}
-#endif
- NoNameForLinkagePtr noNameForLinkagePtr;
-
- struct Danger {
- NoNameForLinkagePtr p;
- };
-
- X<NoNameForLinkagePtr> x2;
- X<const NoNameForLinkagePtr> x3;
- NoNameForLinkagePtr p1 = get<NoNameForLinkagePtr>();
- NoNameForLinkagePtr p2 = get<const NoNameForLinkagePtr>();
- int n1 = take(noNameForLinkagePtr);
-#if __cplusplus < 201103L
- // expected-error@-6 {{uses unnamed type}}
- // expected-error@-6 {{uses unnamed type}}
- // expected-error@-6 {{uses unnamed type}}
- // expected-error@-6 {{uses unnamed type}}
- // expected-error@-6 {{uses unnamed type}}
-#endif
-
- X<Danger> x4;
-
- void f() {
- struct NoLinkage {};
- X<NoLinkage> a;
- X<const NoLinkage> b;
- get<NoLinkage>();
- get<const NoLinkage>();
- X<void (*)(NoLinkage A::*)> c;
- X<int NoLinkage::*> d;
-#if __cplusplus < 201103L
- // expected-error@-7 {{uses local type}}
- // expected-error@-7 {{uses local type}}
- // expected-error@-7 {{uses local type}}
- // expected-error@-7 {{uses local type}}
- // expected-error@-7 {{uses local type}}
- // expected-error@-7 {{uses local type}}
-#endif
- }
-}
-
-namespace dr63 { // dr63: yes
- template<typename T> struct S { typename T::error e; };
- extern S<int> *p;
- void *q = p;
-}
-
-namespace dr64 { // dr64: yes
- template<class T> void f(T);
- template<class T> void f(T*);
- template<> void f(int*);
- template<> void f<int>(int*);
- template<> void f(int);
-}
-
-// dr65: na
-
-namespace dr66 { // dr66: no
- namespace X {
- int f(int n); // expected-note 2{{candidate}}
- }
- using X::f;
- namespace X {
- int f(int n = 0);
- int f(int, int);
- }
- // FIXME: The first two calls here should be accepted.
- int a = f(); // expected-error {{no matching function}}
- int b = f(1);
- int c = f(1, 2); // expected-error {{no matching function}}
-}
-
-// dr67: na
-
-namespace dr68 { // dr68: yes
- template<typename T> struct X {};
- struct ::dr68::X<int> x1;
- struct ::dr68::template X<int> x2;
-#if __cplusplus < 201103L
- // expected-error@-2 {{'template' keyword outside of a template}}
-#endif
- struct Y {
- friend struct X<int>;
- friend struct ::dr68::X<char>;
- friend struct ::dr68::template X<double>;
-#if __cplusplus < 201103L
- // expected-error@-2 {{'template' keyword outside of a template}}
-#endif
- };
- template<typename>
- struct Z {
- friend struct ::dr68::template X<double>;
- friend typename ::dr68::X<double>;
-#if __cplusplus < 201103L
- // expected-error@-2 {{C++11 extension}}
-#endif
- };
-}
-
-namespace dr69 { // dr69: yes
- template<typename T> static void f() {}
- // FIXME: Should we warn here?
- inline void g() { f<int>(); }
- // FIXME: This should be rejected, per [temp.explicit]p11.
- extern template void f<char>();
-#if __cplusplus < 201103L
- // expected-error@-2 {{C++11 extension}}
-#endif
- template<void(*)()> struct Q {};
- Q<&f<int> > q;
-#if __cplusplus < 201103L
- // expected-error@-2 {{internal linkage}} expected-note@-11 {{here}}
-#endif
-}
-
-namespace dr70 { // dr70: yes
- template<int> struct A {};
- template<int I, int J> int f(int (&)[I + J], A<I>, A<J>);
- int arr[7];
- int k = f(arr, A<3>(), A<4>());
-}
-
-// dr71: na
-// dr72: dup 69
-
-#if __cplusplus >= 201103L
-namespace dr73 { // dr73: no
- // The resolution to dr73 is unworkable. Consider:
- int a, b;
- static_assert(&a + 1 != &b, ""); // expected-error {{not an integral constant expression}}
-}
-#endif
-
-namespace dr74 { // dr74: yes
- enum E { k = 5 };
- int (*p)[k] = new int[k][k];
-}
-
-namespace dr75 { // dr75: yes
- struct S {
- static int n = 0; // expected-error {{non-const}}
- };
-}
-
-namespace dr76 { // dr76: yes
- const volatile int n = 1;
- int arr[n]; // expected-error +{{variable length array}}
-}
-
-namespace dr77 { // dr77: yes
- struct A {
- struct B {};
- friend struct B;
- };
-}
-
-namespace dr78 { // dr78: sup ????
- // Under DR78, this is valid, because 'k' has static storage duration, so is
- // zero-initialized.
- const int k; // expected-error {{default initialization of an object of const}}
-}
-
-// dr79: na
-
-namespace dr80 { // dr80: yes
- struct A {
- int A;
- };
- struct B {
- static int B; // expected-error {{same name as its class}}
- };
- struct C {
- int C; // expected-error {{same name as its class}}
- C();
- };
- struct D {
- D();
- int D; // expected-error {{same name as its class}}
- };
-}
-
-// dr81: na
-// dr82: dup 48
-
-namespace dr83 { // dr83: yes
- int &f(const char*);
- char &f(char *);
- int &k = f("foo");
-}
-
-namespace dr84 { // dr84: yes
- struct B;
- struct A { operator B() const; };
- struct C {};
- struct B {
- B(B&); // expected-note 0-1{{candidate}}
- B(C); // expected-note 0-1{{no known conversion from 'dr84::B' to 'dr84::C'}}
- operator C() const;
- };
- A a;
- // Cannot use B(C) / operator C() pair to construct the B from the B temporary
- // here. In C++17, we initialize the B object directly using 'A::operator B()'.
- B b = a;
-#if __cplusplus <= 201402L
- // expected-error@-2 {{no viable}}
-#endif
-}
-
-namespace dr85 { // dr85: yes
- struct A {
- struct B;
- struct B {}; // expected-note{{previous declaration is here}}
- struct B; // expected-error{{class member cannot be redeclared}}
-
- union U;
- union U {}; // expected-note{{previous declaration is here}}
- union U; // expected-error{{class member cannot be redeclared}}
-
-#if __cplusplus >= 201103L
- enum E1 : int;
- enum E1 : int { e1 }; // expected-note{{previous declaration is here}}
- enum E1 : int; // expected-error{{class member cannot be redeclared}}
-
- enum class E2;
- enum class E2 { e2 }; // expected-note{{previous declaration is here}}
- enum class E2; // expected-error{{class member cannot be redeclared}}
-#endif
- };
-
- template <typename T>
- struct C {
- struct B {}; // expected-note{{previous declaration is here}}
- struct B; // expected-error{{class member cannot be redeclared}}
- };
-}
-
-// dr86: dup 446
-
-namespace dr87 { // dr87: no
- // FIXME: Superseded by dr1975
- template<typename T> struct X {};
- // FIXME: This is invalid.
- X<void() throw()> x;
- // This is valid under dr87 but not under dr1975.
- X<void(void() throw())> y;
-}
-
-namespace dr88 { // dr88: yes
- template<typename T> struct S {
- static const int a = 1; // expected-note {{previous}}
- static const int b;
- };
- template<> const int S<int>::a = 4; // expected-error {{already has an initializer}}
- template<> const int S<int>::b = 4;
-}
-
-// dr89: na
-
-namespace dr90 { // dr90: yes
- struct A {
- template<typename T> friend void dr90_f(T);
- };
- struct B : A {
- template<typename T> friend void dr90_g(T);
- struct C {};
- union D {};
- };
- struct E : B {};
- struct F : B::C {};
-
- void test() {
- dr90_f(A());
- dr90_f(B());
- dr90_f(B::C()); // expected-error {{undeclared identifier}}
- dr90_f(B::D()); // expected-error {{undeclared identifier}}
- dr90_f(E());
- dr90_f(F()); // expected-error {{undeclared identifier}}
-
- dr90_g(A()); // expected-error {{undeclared identifier}}
- dr90_g(B());
- dr90_g(B::C());
- dr90_g(B::D());
- dr90_g(E());
- dr90_g(F()); // expected-error {{undeclared identifier}}
- }
-}
-
-namespace dr91 { // dr91: yes
- union U { friend int f(U); };
- int k = f(U());
-}
-
-namespace dr92 { // dr92: 4 c++17
- void f() throw(int, float); // expected-error 0-1{{ISO C++17 does not allow}} expected-note 0-1{{use 'noexcept}}
- void (*p)() throw(int) = &f; // expected-error 0-1{{ISO C++17 does not allow}} expected-note 0-1{{use 'noexcept}}
-#if __cplusplus <= 201402L
- // expected-error@-2 {{target exception specification is not superset of source}}
-#else
- // expected-warning@-4 {{target exception specification is not superset of source}}
-#endif
- void (*q)() throw(int); // expected-error 0-1{{ISO C++17 does not allow}} expected-note 0-1{{use 'noexcept}}
- void (**pp)() throw() = &q;
-#if __cplusplus <= 201402L
- // expected-error@-2 {{exception specifications are not allowed}}
-#else
- // expected-error@-4 {{cannot initialize}}
-#endif
-
- void g(void() throw()); // expected-note 0-2 {{no known conversion}} expected-warning 0-1{{mangled name of 'g' will change in C++17}}
- void h() throw() {
- g(f); // expected-error-re {{{{is not superset|no matching function}}}}
- g(q); // expected-error-re {{{{is not superset|no matching function}}}}
- }
-
- // Prior to C++17, this is OK because the exception specification is not
- // considered in this context. In C++17, we *do* perform an implicit
- // conversion (which performs initialization), and the exception specification
- // is part of the type of the parameter, so this is invalid.
- template<void() throw()> struct X {};
- X<&f> xp;
-#if __cplusplus > 201402L
- // expected-error@-2 {{not implicitly convertible}}
-#endif
-
- template<void() throw(int)> struct Y {}; // expected-error 0-1{{ISO C++17 does not allow}} expected-note 0-1{{use 'noexcept}}
- Y<&h> yp; // ok
-}
-
-// dr93: na
-
-namespace dr94 { // dr94: yes
- struct A { static const int n = 5; };
- int arr[A::n];
-}
-
-namespace dr95 { // dr95: yes
- struct A;
- struct B;
- namespace N {
- class C {
- friend struct A;
- friend struct B;
- static void f(); // expected-note {{here}}
- };
- struct A *p; // dr95::A, not dr95::N::A.
- }
- A *q = N::p; // ok, same type
- struct B { void f() { N::C::f(); } }; // expected-error {{private}}
-}
-
-namespace dr96 { // dr96: no
- struct A {
- void f(int);
- template<typename T> int f(T);
- template<typename T> struct S {};
- } a;
- template<template<typename> class X> struct B {};
-
- template<typename T>
- void test() {
- int k1 = a.template f<int>(0);
- // FIXME: This is ill-formed, because 'f' is not a template-id and does not
- // name a class template.
- // FIXME: What about alias templates?
- int k2 = a.template f(1);
- A::template S<int> s;
- B<A::template S> b;
- }
-}
-
-namespace dr97 { // dr97: yes
- struct A {
- static const int a = false;
- static const int b = !a;
- };
-}
-
-namespace dr98 { // dr98: yes
- void test(int n) {
- switch (n) {
- try { // expected-note 2{{bypasses}}
- case 0: // expected-error {{cannot jump}}
- x:
- throw n;
- } catch (...) { // expected-note 2{{bypasses}}
- case 1: // expected-error {{cannot jump}}
- y:
- throw n;
- }
- case 2:
- goto x; // expected-error {{cannot jump}}
- case 3:
- goto y; // expected-error {{cannot jump}}
- }
- }
-}
-
-namespace dr99 { // dr99: sup 214
- template<typename T> void f(T&);
- template<typename T> int &f(const T&);
- const int n = 0;
- int &r = f(n);
-}