726 lines
19 KiB
C++
726 lines
19 KiB
C++
// RUN: %clang_cc1 -std=c++98 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
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// RUN: %clang_cc1 -std=c++11 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
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// RUN: %clang_cc1 -std=c++1y %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
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// PR13819 -- __SIZE_TYPE__ is incompatible.
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// REQUIRES: LP64
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#if __cplusplus < 201103L
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#define fold(x) (__builtin_constant_p(x) ? (x) : (x))
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#else
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#define fold
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#endif
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namespace dr200 { // dr200: dup 214
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template <class T> T f(int);
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template <class T, class U> T f(U) = delete; // expected-error 0-1{{extension}}
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void g() {
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f<int>(1);
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}
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}
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// dr201 FIXME: write codegen test
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namespace dr202 { // dr202: yes
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template<typename T> T f();
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template<int (*g)()> struct X {
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int arr[fold(g == &f<int>) ? 1 : -1];
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};
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template struct X<f>;
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}
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// FIXME (export) dr204: no
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namespace dr206 { // dr206: yes
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struct S; // expected-note 2{{declaration}}
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template<typename T> struct Q { S s; }; // expected-error {{incomplete}}
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template<typename T> void f() { S s; } // expected-error {{incomplete}}
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}
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namespace dr207 { // dr207: yes
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class A {
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protected:
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static void f() {}
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};
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class B : A {
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public:
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using A::f;
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void g() {
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A::f();
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f();
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}
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};
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}
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// dr208 FIXME: write codegen test
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namespace dr209 { // dr209: yes
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class A {
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void f(); // expected-note {{here}}
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};
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class B {
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friend void A::f(); // expected-error {{private}}
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};
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}
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// dr210 FIXME: write codegen test
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namespace dr211 { // dr211: yes
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struct A {
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A() try {
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throw 0;
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} catch (...) {
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return; // expected-error {{return in the catch of a function try block of a constructor}}
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}
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};
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}
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namespace dr213 { // dr213: yes
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template <class T> struct A : T {
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void h(T t) {
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char &r1 = f(t);
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int &r2 = g(t); // expected-error {{undeclared}}
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}
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};
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struct B {
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int &f(B);
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int &g(B); // expected-note {{in dependent base class}}
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};
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char &f(B);
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template void A<B>::h(B); // expected-note {{instantiation}}
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}
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namespace dr214 { // dr214: yes
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template<typename T, typename U> T checked_cast(U from) { U::error; }
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template<typename T, typename U> T checked_cast(U *from);
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class C {};
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void foo(int *arg) { checked_cast<const C *>(arg); }
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template<typename T> T f(int);
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template<typename T, typename U> T f(U) { T::error; }
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void g() {
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f<int>(1);
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}
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}
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namespace dr215 { // dr215: yes
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template<typename T> class X {
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friend void T::foo();
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int n;
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};
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struct Y {
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void foo() { (void)+X<Y>().n; }
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};
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}
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namespace dr216 { // dr216: no
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// FIXME: Should reject this: 'f' has linkage but its type does not,
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// and 'f' is odr-used but not defined in this TU.
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typedef enum { e } *E;
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void f(E);
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void g(E e) { f(e); }
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struct S {
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// FIXME: Should reject this: 'f' has linkage but its type does not,
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// and 'f' is odr-used but not defined in this TU.
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typedef enum { e } *E;
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void f(E);
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};
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void g(S s, S::E e) { s.f(e); }
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}
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namespace dr217 { // dr217: yes
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template<typename T> struct S {
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void f(int);
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};
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template<typename T> void S<T>::f(int = 0) {} // expected-error {{default arguments cannot be added}}
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}
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namespace dr218 { // dr218: yes
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namespace A {
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struct S {};
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void f(S);
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}
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namespace B {
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struct S {};
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void f(S);
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}
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struct C {
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int f;
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void test1(A::S as) { f(as); } // expected-error {{called object type 'int'}}
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void test2(A::S as) { void f(); f(as); } // expected-error {{too many arguments}} expected-note {{}}
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void test3(A::S as) { using A::f; f(as); } // ok
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void test4(A::S as) { using B::f; f(as); } // ok
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void test5(A::S as) { int f; f(as); } // expected-error {{called object type 'int'}}
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void test6(A::S as) { struct f {}; (void) f(as); } // expected-error {{no matching conversion}} expected-note +{{}}
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};
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namespace D {
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struct S {};
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struct X { void operator()(S); } f;
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}
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void testD(D::S ds) { f(ds); } // expected-error {{undeclared identifier}}
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namespace E {
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struct S {};
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struct f { f(S); };
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}
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void testE(E::S es) { f(es); } // expected-error {{undeclared identifier}}
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namespace F {
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struct S {
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template<typename T> friend void f(S, T) {}
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};
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}
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void testF(F::S fs) { f(fs, 0); }
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namespace G {
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namespace X {
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int f;
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struct A {};
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}
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namespace Y {
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template<typename T> void f(T);
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struct B {};
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}
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template<typename A, typename B> struct C {};
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}
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void testG(G::C<G::X::A, G::Y::B> gc) { f(gc); }
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}
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// dr219: na
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// dr220: na
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namespace dr221 { // dr221: yes
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struct A {
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A &operator=(int&);
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A &operator+=(int&);
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static A &operator=(A&, double&); // expected-error {{cannot be a static member}}
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static A &operator+=(A&, double&); // expected-error {{cannot be a static member}}
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friend A &operator=(A&, char&); // expected-error {{must be a non-static member function}}
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friend A &operator+=(A&, char&);
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};
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A &operator=(A&, float&); // expected-error {{must be a non-static member function}}
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A &operator+=(A&, float&);
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void test(A a, int n, char c, float f) {
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a = n;
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a += n;
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a = c;
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a += c;
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a = f;
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a += f;
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}
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}
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// dr222 is a mystery -- it lists no changes to the standard, and yet was
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// apparently both voted into the WP and acted upon by the editor.
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// dr223: na
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namespace dr224 { // dr224: no
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namespace example1 {
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template <class T> class A {
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typedef int type;
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A::type a;
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A<T>::type b;
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A<T*>::type c; // expected-error {{missing 'typename'}}
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::dr224::example1::A<T>::type d;
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class B {
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typedef int type;
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A::type a;
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A<T>::type b;
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A<T*>::type c; // expected-error {{missing 'typename'}}
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::dr224::example1::A<T>::type d;
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B::type e;
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A<T>::B::type f;
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A<T*>::B::type g; // expected-error {{missing 'typename'}}
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typename A<T*>::B::type h;
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};
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};
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template <class T> class A<T*> {
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typedef int type;
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A<T*>::type a;
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A<T>::type b; // expected-error {{missing 'typename'}}
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};
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template <class T1, class T2, int I> struct B {
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typedef int type;
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B<T1, T2, I>::type b1;
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B<T2, T1, I>::type b2; // expected-error {{missing 'typename'}}
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typedef T1 my_T1;
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static const int my_I = I;
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static const int my_I2 = I+0;
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static const int my_I3 = my_I;
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B<my_T1, T2, my_I>::type b3; // FIXME: expected-error {{missing 'typename'}}
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B<my_T1, T2, my_I2>::type b4; // expected-error {{missing 'typename'}}
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B<my_T1, T2, my_I3>::type b5; // FIXME: expected-error {{missing 'typename'}}
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};
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}
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namespace example2 {
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template <int, typename T> struct X { typedef T type; };
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template <class T> class A {
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static const int i = 5;
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X<i, int>::type w; // FIXME: expected-error {{missing 'typename'}}
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X<A::i, char>::type x; // FIXME: expected-error {{missing 'typename'}}
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X<A<T>::i, double>::type y; // FIXME: expected-error {{missing 'typename'}}
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X<A<T*>::i, long>::type z; // expected-error {{missing 'typename'}}
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int f();
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};
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template <class T> int A<T>::f() {
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return i;
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}
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}
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}
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// dr225: yes
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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}}
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void dr225_g(int); // expected-note {{should be declared prior to the call site}}
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template void dr225_f(int); // expected-note {{in instantiation of}}
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namespace dr226 { // dr226: no
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template<typename T = void> void f() {}
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#if __cplusplus < 201103L
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// expected-error@-2 {{extension}}
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// FIXME: This appears to be wrong: default arguments for function templates
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// are listed as a defect (in c++98) not an extension. EDG accepts them in
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// strict c++98 mode.
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#endif
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template<typename T> struct S {
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template<typename U = void> void g();
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#if __cplusplus < 201103L
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// expected-error@-2 {{extension}}
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#endif
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template<typename U> struct X;
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template<typename U> void h();
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};
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template<typename T> template<typename U> void S<T>::g() {}
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template<typename T> template<typename U = void> struct S<T>::X {}; // expected-error {{cannot add a default template arg}}
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template<typename T> template<typename U = void> void S<T>::h() {} // expected-error {{cannot add a default template arg}}
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template<typename> void friend_h();
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struct A {
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// FIXME: This is ill-formed.
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template<typename=void> struct friend_B;
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// FIXME: f, h, and i are ill-formed.
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// f is ill-formed because it is not a definition.
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// h and i are ill-formed because they are not the only declarations of the
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// function in the translation unit.
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template<typename=void> void friend_f();
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template<typename=void> void friend_g() {}
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template<typename=void> void friend_h() {}
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template<typename=void> void friend_i() {}
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#if __cplusplus < 201103L
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// expected-error@-5 {{extension}} expected-error@-4 {{extension}}
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// expected-error@-4 {{extension}} expected-error@-3 {{extension}}
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#endif
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};
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template<typename> void friend_i();
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template<typename=void, typename X> void foo(X) {}
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template<typename=void, typename X> struct Foo {}; // expected-error {{missing a default argument}} expected-note {{here}}
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#if __cplusplus < 201103L
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// expected-error@-3 {{extension}}
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#endif
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template<typename=void, typename X, typename, typename Y> int foo(X, Y);
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template<typename, typename X, typename=void, typename Y> int foo(X, Y);
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int x = foo(0, 0);
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#if __cplusplus < 201103L
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// expected-error@-4 {{extension}}
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// expected-error@-4 {{extension}}
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#endif
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}
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void dr227(bool b) { // dr227: yes
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if (b)
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int n;
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else
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int n;
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}
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namespace dr228 { // dr228: yes
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template <class T> struct X {
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void f();
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};
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template <class T> struct Y {
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void g(X<T> x) { x.template X<T>::f(); }
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};
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}
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namespace dr229 { // dr229: yes
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template<typename T> void f();
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template<typename T> void f<T*>() {} // expected-error {{function template partial specialization}}
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template<> void f<int>() {}
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}
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namespace dr231 { // dr231: yes
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namespace outer {
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namespace inner {
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int i; // expected-note {{here}}
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}
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void f() { using namespace inner; }
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int j = i; // expected-error {{undeclared identifier 'i'; did you mean 'inner::i'?}}
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}
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}
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// dr234: na
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// dr235: na
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namespace dr236 { // dr236: yes
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void *p = int();
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#if __cplusplus < 201103L
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// expected-warning@-2 {{null pointer}}
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#else
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// expected-error@-4 {{cannot initialize}}
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#endif
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}
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namespace dr237 { // dr237: dup 470
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template<typename T> struct A { void f() { T::error; } };
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template<typename T> struct B : A<T> {};
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template struct B<int>; // ok
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}
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namespace dr239 { // dr239: yes
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namespace NS {
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class T {};
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void f(T);
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float &g(T, int);
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}
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NS::T parm;
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int &g(NS::T, float);
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int main() {
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f(parm);
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float &r = g(parm, 1);
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extern int &g(NS::T, float);
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int &s = g(parm, 1);
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}
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}
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// dr240: dup 616
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namespace dr241 { // dr241: yes
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namespace A {
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struct B {};
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template <int X> void f(); // expected-note 2{{candidate}}
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template <int X> void g(B);
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}
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namespace C {
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template <class T> void f(T t); // expected-note 2{{candidate}}
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template <class T> void g(T t); // expected-note {{candidate}}
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}
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void h(A::B b) {
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f<3>(b); // expected-error {{undeclared identifier}}
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g<3>(b); // expected-error {{undeclared identifier}}
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A::f<3>(b); // expected-error {{no matching}}
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A::g<3>(b);
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C::f<3>(b); // expected-error {{no matching}}
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C::g<3>(b); // expected-error {{no matching}}
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using C::f;
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using C::g;
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f<3>(b); // expected-error {{no matching}}
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g<3>(b);
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}
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}
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namespace dr243 { // dr243: yes
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struct B;
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struct A {
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A(B); // expected-note {{candidate}}
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};
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struct B {
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operator A() = delete; // expected-error 0-1{{extension}} expected-note {{candidate}}
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} b;
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A a1(b);
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A a2 = b; // expected-error {{ambiguous}}
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}
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namespace dr244 { // dr244: no
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struct B {}; struct D : B {}; // expected-note {{here}}
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D D_object;
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typedef B B_alias;
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B* B_ptr = &D_object;
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void f() {
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D_object.~B(); // expected-error {{expression does not match the type}}
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D_object.B::~B();
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B_ptr->~B();
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B_ptr->~B_alias();
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B_ptr->B_alias::~B();
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// This is valid under DR244.
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B_ptr->B_alias::~B_alias(); // FIXME: expected-error {{expected the class name after '~' to name a destructor}}
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B_ptr->dr244::~B(); // expected-error {{refers to a member in namespace}}
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B_ptr->dr244::~B_alias(); // expected-error {{refers to a member in namespace}}
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}
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}
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namespace dr245 { // dr245: yes
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struct S {
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enum E {}; // expected-note {{here}}
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class E *p; // expected-error {{does not match previous declaration}}
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};
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}
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namespace dr246 { // dr246: yes
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struct S {
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S() try { // expected-note {{try block}}
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throw 0;
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X: ;
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} catch (int) {
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goto X; // expected-error {{protected scope}}
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}
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};
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}
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namespace dr247 { // dr247: yes
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struct A {};
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struct B : A {
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void f();
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void f(int);
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};
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void (A::*f)() = (void (A::*)())&B::f;
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struct C {
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void f();
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void f(int);
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};
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struct D : C {};
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void (C::*g)() = &D::f;
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void (D::*h)() = &D::f;
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struct E {
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void f();
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};
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struct F : E {
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using E::f;
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void f(int);
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};
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void (F::*i)() = &F::f;
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}
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namespace dr248 { // dr248: yes c++11
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// FIXME: Should this also apply to c++98 mode? This was a DR against C++98.
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int \u040d\u040e = 0;
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#if __cplusplus < 201103L
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// FIXME: expected-error@-2 {{expected ';'}}
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#endif
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}
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namespace dr249 { // dr249: yes
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template<typename T> struct X { void f(); };
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template<typename T> void X<T>::f() {}
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}
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namespace dr250 { // dr250: yes
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typedef void (*FPtr)(double x[]);
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template<int I> void f(double x[]);
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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 {{here}}
|
|
virtual ~E();
|
|
};
|
|
E::~E() {} // expected-error {{deleted}}
|
|
|
|
struct F {
|
|
// If both functions are available, the first one is a placement delete.
|
|
void operator delete(void*, __SIZE_TYPE__);
|
|
void operator delete(void*) = delete; // expected-error 0-1{{extension}} expected-note {{here}}
|
|
virtual ~F();
|
|
};
|
|
F::~F() {} // expected-error {{deleted}}
|
|
|
|
struct G {
|
|
void operator delete(void*, __SIZE_TYPE__);
|
|
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 {{elaborated type refers to a typedef}}
|
|
};
|
|
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: yes c++11
|
|
template<typename T> struct A {};
|
|
template struct A<int>; // expected-note {{previous}}
|
|
template struct A<int>; // expected-error {{duplicate explicit instantiation}}
|
|
|
|
// FIXME: We only apply this DR in C++11 mode.
|
|
template<> struct A<float>;
|
|
template struct A<float>;
|
|
#if __cplusplus < 201103L
|
|
// expected-error@-2 {{extension}} expected-note@-3 {{here}}
|
|
#endif
|
|
|
|
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>;
|
|
template struct B<float>;
|
|
#if __cplusplus < 201103L
|
|
// expected-error@-2 {{extension}} expected-note@-3 {{here}}
|
|
#endif
|
|
}
|
|
|
|
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_TYPE__) __attribute__((unused));
|
|
inline void operator delete(void*) __attribute__((unused));
|
|
A() {}
|
|
};
|
|
|
|
// FIXME: These are 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() {}
|
|
};
|
|
|
|
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();
|
|
#else
|
|
friend constexpr X::X() noexcept;
|
|
friend X::~X();
|
|
#endif
|
|
Y::Y(); // expected-error {{extra qualification}}
|
|
Y::~Y(); // expected-error {{extra qualification}}
|
|
};
|
|
}
|
|
|
|
// dr265: dup 353
|
|
// dr266: na
|
|
// dr269: na
|
|
// dr270: na
|