forked from OSchip/llvm-project
1225 lines
32 KiB
C++
1225 lines
32 KiB
C++
// RUN: env ASAN_OPTIONS=detect_stack_use_after_return=0 %clang_cc1 -std=c++98 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
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// RUN: env ASAN_OPTIONS=detect_stack_use_after_return=0 %clang_cc1 -std=c++11 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
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// RUN: env ASAN_OPTIONS=detect_stack_use_after_return=0 %clang_cc1 -std=c++14 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
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// RUN: env ASAN_OPTIONS=detect_stack_use_after_return=0 %clang_cc1 -std=c++1z %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
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// FIXME: __SIZE_TYPE__ expands to 'long long' on some targets.
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__extension__ typedef __SIZE_TYPE__ size_t;
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namespace std { struct type_info; }
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namespace dr400 { // dr400: yes
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struct A { int a; struct a {}; }; // expected-note 2{{conflicting}} expected-note {{ambiguous}}
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struct B { int a; struct a {}; }; // expected-note 2{{target}} expected-note {{ambiguous}}
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struct C : A, B { using A::a; struct a b; };
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struct D : A, B { using A::a; using B::a; struct a b; }; // expected-error 2{{conflicts}}
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struct E : A, B { struct a b; }; // expected-error {{found in multiple base classes}}
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}
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namespace dr401 { // dr401: yes
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template<class T, class U = typename T::type> class A : public T {}; // expected-error {{protected}} expected-error 2{{private}}
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class B {
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protected:
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typedef int type; // expected-note {{protected}}
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};
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class C {
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typedef int type; // expected-note {{private}}
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friend class A<C>; // expected-note {{default argument}}
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};
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class D {
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typedef int type; // expected-note {{private}}
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friend class A<D, int>;
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};
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A<B> *b; // expected-note {{default argument}}
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// FIXME: We're missing the "in instantiation of" note for the default
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// argument here.
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A<D> *d;
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struct E {
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template<class T, class U = typename T::type> class A : public T {};
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};
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class F {
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typedef int type;
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friend class E;
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};
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E::A<F> eaf; // ok, default argument is in befriended context
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// FIXME: Why do we get different diagnostics in C++11 onwards here? We seem
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// to not treat the default template argument as a SFINAE context in C++98.
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template<class T, class U = typename T::type> void f(T) {}
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void g(B b) { f(b); }
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#if __cplusplus < 201103L
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// expected-error@-3 0-1{{extension}} expected-error@-3 {{protected}} expected-note@-3 {{instantiation}}
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// expected-note@-3 {{substituting}}
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#else
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// expected-error@-5 {{no matching}} expected-note@-6 {{protected}}
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#endif
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}
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namespace dr403 { // dr403: yes
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namespace A {
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struct S {};
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int f(void*);
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}
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template<typename T> struct X {};
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typedef struct X<A::S>::X XS;
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XS *p;
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int k = f(p); // ok, finds A::f, even though type XS is a typedef-name
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// referring to an elaborated-type-specifier naming a
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// injected-class-name, which is about as far from a
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// template-id as we can make it.
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}
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// dr404: na
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// (NB: also sup 594)
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namespace dr406 { // dr406: yes
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typedef struct {
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static int n; // expected-error {{static data member 'n' not allowed in anonymous struct}}
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} A;
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}
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namespace dr407 { // dr407: no
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struct S;
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typedef struct S S;
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void f() {
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struct S *p;
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{
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typedef struct S S; // expected-note {{here}}
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struct S *p; // expected-error {{refers to a typedef}}
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}
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}
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struct S {};
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namespace UsingDir {
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namespace A {
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struct S {}; // expected-note {{found}}
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}
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namespace B {
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typedef int S; // expected-note {{found}}
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}
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namespace C {
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using namespace A;
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using namespace B;
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struct S s; // expected-error {{ambiguous}}
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}
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namespace D {
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// FIXME: This is valid.
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using A::S;
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typedef struct S S; // expected-note {{here}}
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struct S s; // expected-error {{refers to a typedef}}
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}
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namespace E {
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// FIXME: The standard doesn't say whether this is valid.
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typedef A::S S;
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using A::S;
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struct S s;
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}
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namespace F {
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typedef A::S S; // expected-note {{here}}
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}
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// FIXME: The standard doesn't say what to do in these cases, but
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// our behavior should not depend on the order of the using-directives.
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namespace G {
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using namespace A;
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using namespace F;
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struct S s;
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}
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namespace H {
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using namespace F;
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using namespace A;
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struct S s; // expected-error {{refers to a typedef}}
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}
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}
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}
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namespace dr408 { // dr408: 3.4
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template<int N> void g() { int arr[N != 1 ? 1 : -1]; }
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template<> void g<2>() { }
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template<typename T> struct S {
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static int i[];
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void f();
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};
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template<typename T> int S<T>::i[] = { 1 };
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template<typename T> void S<T>::f() {
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g<sizeof (i) / sizeof (int)>();
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}
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template<> int S<int>::i[] = { 1, 2 };
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template void S<int>::f(); // uses g<2>(), not g<1>().
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template<typename T> struct R {
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static int arr[];
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void f();
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};
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template<typename T> int R<T>::arr[1];
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template<typename T> void R<T>::f() {
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int arr[sizeof(arr) != sizeof(int) ? 1 : -1];
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}
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template<> int R<int>::arr[2];
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template void R<int>::f();
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}
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namespace dr409 { // dr409: yes
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template<typename T> struct A {
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typedef int B;
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B b1;
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A::B b2;
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A<T>::B b3;
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A<T*>::B b4; // expected-error {{missing 'typename'}}
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};
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}
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namespace dr410 { // dr410: no
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template<class T> void f(T);
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void g(int);
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namespace M {
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template<class T> void h(T);
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template<class T> void i(T);
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struct A {
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friend void f<>(int);
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friend void h<>(int);
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friend void g(int);
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template<class T> void i(T);
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friend void i<>(int);
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private:
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static void z(); // expected-note {{private}}
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};
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template<> void h(int) { A::z(); }
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// FIXME: This should be ill-formed. The member A::i<> is befriended,
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// not this function.
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template<> void i(int) { A::z(); }
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}
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template<> void f(int) { M::A::z(); }
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void g(int) { M::A::z(); } // expected-error {{private}}
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}
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// dr412 is in its own file.
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namespace dr413 { // dr413: yes
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struct S {
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int a;
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int : 17;
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int b;
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};
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S s = { 1, 2, 3 }; // expected-error {{excess elements}}
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struct E {};
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struct T { // expected-note {{here}}
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int a;
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E e;
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int b;
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};
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T t1 = { 1, {}, 2 };
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T t2 = { 1, 2 }; // expected-error {{aggregate with no elements requires explicit braces}}
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}
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namespace dr414 { // dr414: dup 305
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struct X {};
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void f() {
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X x;
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struct X {};
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x.~X();
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}
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}
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namespace dr415 { // dr415: yes
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template<typename T> void f(T, ...) { T::error; }
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void f(int, int);
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void g() { f(0, 0); } // ok
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}
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namespace dr416 { // dr416: yes
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extern struct A a;
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int &operator+(const A&, const A&);
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int &k = a + a;
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struct A { float &operator+(A&); };
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float &f = a + a;
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}
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namespace dr417 { // dr417: no
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struct A;
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struct dr417::A {}; // expected-warning {{extra qualification}}
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struct B { struct X; };
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struct C : B {};
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struct C::X {}; // expected-error {{no struct named 'X' in 'dr417::C'}}
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struct B::X { struct Y; };
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struct C::X::Y {}; // ok!
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namespace N {
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struct D;
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struct E;
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struct F;
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struct H;
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}
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// FIXME: This is ill-formed.
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using N::D;
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struct dr417::D {}; // expected-warning {{extra qualification}}
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using namespace N;
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struct dr417::E {}; // expected-warning {{extra qualification}} expected-error {{no struct named 'E'}}
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struct N::F {};
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struct G;
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using N::H;
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namespace M {
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struct dr417::G {}; // expected-error {{namespace 'M' does not enclose}}
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struct dr417::H {}; // expected-error {{namespace 'M' does not enclose}}
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}
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}
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namespace dr420 { // dr420: yes
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template<typename T> struct ptr {
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T *operator->() const;
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T &operator*() const;
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};
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template<typename T, typename P> void test(P p) {
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p->~T();
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p->T::~T();
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(*p).~T();
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(*p).T::~T();
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}
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struct X {};
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template void test<int>(int*);
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template void test<int>(ptr<int>);
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template void test<X>(X*);
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template void test<X>(ptr<X>);
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template<typename T>
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void test2(T p) {
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p->template Y<int>::~Y<int>();
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p->~Y<int>();
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// FIXME: This is ill-formed, but this diagnostic is terrible. We should
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// reject this in the parser.
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p->template ~Y<int>(); // expected-error 2{{no member named '~typename Y<int>'}}
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}
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template<typename T> struct Y {};
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template void test2(Y<int>*); // expected-note {{instantiation}}
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template void test2(ptr<Y<int> >); // expected-note {{instantiation}}
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void test3(int *p, ptr<int> q) {
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typedef int Int;
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p->~Int();
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q->~Int();
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p->Int::~Int();
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q->Int::~Int();
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}
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#if __cplusplus >= 201103L
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template<typename T> using id = T;
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struct A { template<typename T> using id = T; };
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void test4(int *p, ptr<int> q) {
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p->~id<int>();
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q->~id<int>();
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p->id<int>::~id<int>();
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q->id<int>::~id<int>();
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p->template id<int>::~id<int>(); // expected-error {{expected unqualified-id}}
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q->template id<int>::~id<int>(); // expected-error {{expected unqualified-id}}
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p->A::template id<int>::~id<int>();
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q->A::template id<int>::~id<int>();
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}
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#endif
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}
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namespace dr421 { // dr421: yes
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struct X { X(); int n; int &r; };
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int *p = &X().n; // expected-error {{taking the address of a temporary}}
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int *q = &X().r;
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}
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namespace dr422 { // dr422: yes
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template<typename T, typename U> void f() {
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typedef T type; // expected-note {{prev}}
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typedef U type; // expected-error {{redef}}
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}
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template void f<int, int>();
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template void f<int, char>(); // expected-note {{instantiation}}
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}
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namespace dr423 { // dr423: yes
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template<typename T> struct X { operator T&(); };
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void f(X<int> x) { x += 1; }
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}
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namespace dr424 { // dr424: yes
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struct A {
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typedef int N; // expected-note {{previous}}
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typedef int N; // expected-error {{redefinition}}
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struct X;
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typedef X X; // expected-note {{previous}}
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struct X {};
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struct X *p;
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struct A::X *q;
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X *r;
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typedef X X; // expected-error {{redefinition}}
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};
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struct B {
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typedef int N;
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};
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struct C : B {
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typedef int N; // expected-note {{previous}}
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typedef int N; // expected-error {{redefinition}}
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};
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}
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namespace dr425 { // dr425: yes
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struct A { template<typename T> operator T() const; } a;
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float f = 1.0f * a; // expected-error {{ambiguous}} expected-note 5+{{built-in candidate}}
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template<typename T> struct is_float;
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template<> struct is_float<float> { typedef void type; };
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struct B {
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template<typename T, typename U = typename is_float<T>::type> operator T() const; // expected-error 0-1{{extension}}
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} b;
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float g = 1.0f * b; // ok
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}
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namespace dr427 { // dr427: yes
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struct B {};
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struct D : public B {
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D(B &) = delete; // expected-error 0-1{{extension}} expected-note {{deleted}}
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};
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extern D d1;
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B &b = d1;
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const D &d2 = static_cast<const D&>(b);
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const D &d3 = (const D&)b;
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const D &d4(b); // expected-error {{deleted}}
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}
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namespace dr428 { // dr428: yes
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template<typename T> T make();
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extern struct X x; // expected-note 5{{forward declaration}}
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void f() {
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throw void(); // expected-error {{cannot throw}}
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throw make<void*>();
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throw make<const volatile void*>();
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throw x; // expected-error {{cannot throw}}
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throw make<X&>(); // expected-error {{cannot throw}}
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throw make<X*>(); // expected-error {{cannot throw}}
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throw make<const volatile X&>(); // expected-error {{cannot throw}}
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throw make<const volatile X*>(); // expected-error {{cannot throw}}
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}
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}
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namespace dr429 { // dr429: yes c++11
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// FIXME: This rule is obviously intended to apply to C++98 as well.
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struct A {
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static void *operator new(size_t, size_t);
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static void operator delete(void*, size_t);
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} *a = new (0) A;
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#if __cplusplus >= 201103L
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// expected-error@-2 {{'new' expression with placement arguments refers to non-placement 'operator delete'}}
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// expected-note@-4 {{here}}
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#endif
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struct B {
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static void *operator new(size_t, size_t);
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static void operator delete(void*);
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static void operator delete(void*, size_t);
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} *b = new (0) B; // ok, second delete is not a non-placement deallocation function
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}
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namespace dr430 { // dr430: yes c++11
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// resolved by n2239
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// FIXME: This should apply in C++98 too.
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void f(int n) {
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int a[] = { n++, n++, n++ };
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#if __cplusplus < 201103L
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// expected-warning@-2 {{multiple unsequenced modifications to 'n'}}
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#endif
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}
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}
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namespace dr431 { // dr431: yes
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struct A {
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template<typename T> T *get();
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template<typename T> struct B {
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template<typename U> U *get();
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};
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};
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template<typename T> void f(A a) {
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a.get<A>()->get<T>();
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a.get<T>()
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->get<T>(); // expected-error {{use 'template'}}
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a.get<T>()->template get<T>();
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a.A::get<T>();
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A::B<int> *b = a.get<A::B<int> >();
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b->get<int>();
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b->A::B<int>::get<int>();
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b->A::B<int>::get<T>();
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b->A::B<T>::get<int>(); // expected-error {{use 'template'}}
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b->A::B<T>::template get<int>();
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b->A::B<T>::get<T>(); // expected-error {{use 'template'}}
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b->A::B<T>::template get<T>();
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A::B<T> *c = a.get<A::B<T> >();
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c->get<int>(); // expected-error {{use 'template'}}
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c->template get<int>();
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}
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}
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namespace dr432 { // dr432: yes
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template<typename T> struct A {};
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template<typename T> struct B : A<B> {}; // expected-error {{requires template arguments}} expected-note {{declared}}
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template<typename T> struct C : A<C<T> > {};
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#if __cplusplus >= 201103L
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template<typename T> struct D : decltype(A<D>()) {}; // expected-error {{requires template arguments}} expected-note {{declared}}
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#endif
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}
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namespace dr433 { // dr433: yes
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|
template<class T> struct S {
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void f(union U*);
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};
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U *p;
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template<class T> void S<T>::f(union U*) {}
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|
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S<int> s;
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}
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namespace dr434 { // dr434: yes
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|
void f() {
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const int ci = 0;
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int *pi = 0;
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const int *&rpci = pi; // expected-error {{cannot bind}}
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rpci = &ci;
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*pi = 1;
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}
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|
}
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|
|
|
// dr435: na
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|
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namespace dr436 { // dr436: yes
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|
enum E { f }; // expected-note {{previous}}
|
|
void f(); // expected-error {{redefinition}}
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|
}
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|
|
namespace dr437 { // dr437: sup 1308
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|
// This is superseded by 1308, which is in turn superseded by 1330,
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|
// which restores this rule.
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|
template<typename U> struct T : U {};
|
|
struct S {
|
|
void f() throw(S);
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|
void g() throw(T<S>);
|
|
struct U;
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void h() throw(U);
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|
struct U {};
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|
};
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|
}
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// dr438 FIXME write a codegen test
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|
// dr439 FIXME write a codegen test
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|
// dr441 FIXME write a codegen test
|
|
// dr442: sup 348
|
|
// dr443: na
|
|
|
|
namespace dr444 { // dr444: yes
|
|
struct D;
|
|
struct B { // expected-note {{candidate is the implicit copy}} expected-note 0-1 {{implicit move}}
|
|
D &operator=(D &) = delete; // expected-error 0-1{{extension}} expected-note {{deleted}}
|
|
};
|
|
struct D : B { // expected-note {{candidate is the implicit}} expected-note 0-1 {{implicit move}}
|
|
using B::operator=;
|
|
} extern d;
|
|
void f() {
|
|
d = d; // expected-error {{deleted}}
|
|
}
|
|
}
|
|
|
|
namespace dr445 { // dr445: yes
|
|
class A { void f(); }; // expected-note {{private}}
|
|
struct B {
|
|
friend void A::f(); // expected-error {{private}}
|
|
};
|
|
}
|
|
|
|
namespace dr446 { // dr446: yes
|
|
struct C;
|
|
struct A {
|
|
A();
|
|
A(const A&) = delete; // expected-error 0-1{{extension}} expected-note +{{deleted}}
|
|
A(const C&);
|
|
};
|
|
struct C : A {};
|
|
void f(A a, bool b, C c) {
|
|
void(b ? a : a);
|
|
b ? A() : a; // expected-error {{deleted}}
|
|
b ? a : A(); // expected-error {{deleted}}
|
|
b ? A() : A(); // expected-error {{deleted}}
|
|
|
|
void(b ? a : c);
|
|
b ? a : C(); // expected-error {{deleted}}
|
|
b ? c : A(); // expected-error {{deleted}}
|
|
b ? A() : C(); // expected-error {{deleted}}
|
|
}
|
|
}
|
|
|
|
namespace dr447 { // dr447: yes
|
|
struct A { int n; int a[4]; };
|
|
template<int> struct U {
|
|
typedef int type;
|
|
template<typename V> static void h();
|
|
};
|
|
template<typename T> U<sizeof(T)> g(T);
|
|
template<typename T, int N> void f(int n) {
|
|
// ok, not type dependent
|
|
g(__builtin_offsetof(A, n)).h<int>();
|
|
g(__builtin_offsetof(T, n)).h<int>();
|
|
// value dependent if first argument is a dependent type
|
|
U<__builtin_offsetof(A, n)>::type a;
|
|
U<__builtin_offsetof(T, n)>::type b; // expected-error +{{}} expected-warning 0+{{}}
|
|
// as an extension, we allow the member-designator to include array indices
|
|
g(__builtin_offsetof(A, a[0])).h<int>(); // expected-error {{extension}}
|
|
g(__builtin_offsetof(A, a[N])).h<int>(); // expected-error {{extension}}
|
|
U<__builtin_offsetof(A, a[0])>::type c; // expected-error {{extension}}
|
|
U<__builtin_offsetof(A, a[N])>::type d; // expected-error {{extension}} expected-error +{{}} expected-warning 0+{{}}
|
|
}
|
|
}
|
|
|
|
namespace dr448 { // dr448: yes
|
|
template<typename T = int> void f(int); // expected-error 0-1{{extension}} expected-note {{no known conversion}}
|
|
template<typename T> void g(T t) {
|
|
f<T>(t); // expected-error {{neither visible in the template definition nor found by argument-dependent lookup}}
|
|
dr448::f(t); // expected-error {{no matching function}}
|
|
}
|
|
template<typename T> void f(T); // expected-note {{should be declared prior to the call site}}
|
|
namespace HideFromADL { struct X {}; }
|
|
template void g(int); // ok
|
|
template void g(HideFromADL::X); // expected-note {{instantiation of}}
|
|
}
|
|
|
|
// dr449: na
|
|
|
|
namespace dr450 { // dr450: yes
|
|
typedef int A[3];
|
|
void f1(const A &);
|
|
void f2(A &); // expected-note +{{not viable}}
|
|
struct S { A n; };
|
|
void g() {
|
|
f1(S().n);
|
|
f2(S().n); // expected-error {{no match}}}
|
|
}
|
|
#if __cplusplus >= 201103L
|
|
void h() {
|
|
f1(A{});
|
|
f2(A{}); // expected-error {{no match}}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
namespace dr451 { // dr451: yes
|
|
const int a = 1 / 0; // expected-warning {{undefined}}
|
|
const int b = 1 / 0; // expected-warning {{undefined}}
|
|
int arr[b]; // expected-error +{{variable length arr}}
|
|
}
|
|
|
|
namespace dr452 { // dr452: yes
|
|
struct A {
|
|
int a, b, c;
|
|
A *p;
|
|
int f();
|
|
A() : a(f()), b(this->f() + a), c(this->a), p(this) {}
|
|
};
|
|
}
|
|
|
|
// dr454 FIXME write a codegen test
|
|
|
|
namespace dr456 { // dr456: yes
|
|
// sup 903 c++11
|
|
const int null = 0;
|
|
void *p = null;
|
|
#if __cplusplus >= 201103L
|
|
// expected-error@-2 {{cannot initialize}}
|
|
#else
|
|
// expected-warning@-4 {{null}}
|
|
#endif
|
|
|
|
const bool f = false;
|
|
void *q = f;
|
|
#if __cplusplus >= 201103L
|
|
// expected-error@-2 {{cannot initialize}}
|
|
#else
|
|
// expected-warning@-4 {{null}}
|
|
#endif
|
|
}
|
|
|
|
namespace dr457 { // dr457: yes
|
|
const int a = 1;
|
|
const volatile int b = 1;
|
|
int ax[a];
|
|
int bx[b]; // expected-error +{{variable length array}}
|
|
|
|
enum E {
|
|
ea = a,
|
|
eb = b // expected-error {{constant}} expected-note {{read of volatile-qualified}}
|
|
};
|
|
}
|
|
|
|
namespace dr458 { // dr458: no
|
|
struct A {
|
|
int T;
|
|
int f();
|
|
template<typename> int g();
|
|
};
|
|
|
|
template<typename> struct B : A {
|
|
int f();
|
|
template<typename> int g();
|
|
template<typename> int h();
|
|
};
|
|
|
|
int A::f() {
|
|
return T;
|
|
}
|
|
template<typename T>
|
|
int A::g() {
|
|
return T; // FIXME: this is invalid, it finds the template parameter
|
|
}
|
|
|
|
template<typename T>
|
|
int B<T>::f() {
|
|
return T;
|
|
}
|
|
template<typename T> template<typename U>
|
|
int B<T>::g() {
|
|
return T;
|
|
}
|
|
template<typename U> template<typename T>
|
|
int B<U>::h() {
|
|
return T; // FIXME: this is invalid, it finds the template parameter
|
|
}
|
|
}
|
|
|
|
namespace dr460 { // dr460: yes
|
|
namespace X { namespace Q { int n; } }
|
|
namespace Y {
|
|
using X; // expected-error {{requires a qualified name}}
|
|
using dr460::X; // expected-error {{cannot refer to namespace}}
|
|
using X::Q; // expected-error {{cannot refer to namespace}}
|
|
}
|
|
}
|
|
|
|
// dr461: na
|
|
// dr462 FIXME write a codegen test
|
|
// dr463: na
|
|
// dr464: na
|
|
// dr465: na
|
|
|
|
namespace dr466 { // dr466: no
|
|
typedef int I;
|
|
typedef const int CI;
|
|
typedef volatile int VI;
|
|
void f(int *a, CI *b, VI *c) {
|
|
a->~I();
|
|
a->~CI();
|
|
a->~VI();
|
|
a->I::~I();
|
|
a->CI::~CI();
|
|
a->VI::~VI();
|
|
|
|
a->CI::~VI(); // FIXME: This is invalid; CI and VI are not the same scalar type.
|
|
|
|
b->~I();
|
|
b->~CI();
|
|
b->~VI();
|
|
b->I::~I();
|
|
b->CI::~CI();
|
|
b->VI::~VI();
|
|
|
|
c->~I();
|
|
c->~CI();
|
|
c->~VI();
|
|
c->I::~I();
|
|
c->CI::~CI();
|
|
c->VI::~VI();
|
|
}
|
|
}
|
|
|
|
namespace dr467 { // dr467: yes
|
|
int stuff();
|
|
|
|
int f() {
|
|
static bool done;
|
|
if (done)
|
|
goto later;
|
|
static int k = stuff();
|
|
done = true;
|
|
later:
|
|
return k;
|
|
}
|
|
int g() {
|
|
goto later; // expected-error {{cannot jump}}
|
|
int k = stuff(); // expected-note {{bypasses variable initialization}}
|
|
later:
|
|
return k;
|
|
}
|
|
}
|
|
|
|
namespace dr468 { // dr468: yes c++11
|
|
// FIXME: Should we allow this in C++98 too?
|
|
template<typename> struct A {
|
|
template<typename> struct B {
|
|
static int C;
|
|
};
|
|
};
|
|
int k = dr468::template A<int>::template B<char>::C;
|
|
#if __cplusplus < 201103L
|
|
// expected-error@-2 2{{'template' keyword outside of a template}}
|
|
#endif
|
|
}
|
|
|
|
namespace dr469 { // dr469: no
|
|
// FIXME: The core issue here didn't really answer the question. We don't
|
|
// deduce 'const T' from a function or reference type in a class template...
|
|
template<typename T> struct X; // expected-note 2{{here}}
|
|
template<typename T> struct X<const T> {};
|
|
X<int&> x; // expected-error {{undefined}}
|
|
X<int()> y; // expected-error {{undefined}}
|
|
|
|
// ... but we do in a function template. GCC and EDG fail deduction of 'f'
|
|
// and the second 'h'.
|
|
template<typename T> void f(const T *);
|
|
template<typename T> void g(T *, const T * = 0);
|
|
template<typename T> void h(T *) { T::error; }
|
|
template<typename T> void h(const T *);
|
|
void i() {
|
|
f(&i);
|
|
g(&i);
|
|
h(&i);
|
|
}
|
|
}
|
|
|
|
namespace dr470 { // dr470: yes
|
|
template<typename T> struct A {
|
|
struct B {};
|
|
};
|
|
template<typename T> struct C {
|
|
};
|
|
|
|
template struct A<int>; // expected-note {{previous}}
|
|
template struct A<int>::B; // expected-error {{duplicate explicit instantiation}}
|
|
|
|
// ok, instantiating C<char> doesn't instantiate base class members.
|
|
template struct A<char>;
|
|
template struct C<char>;
|
|
}
|
|
|
|
namespace dr471 { // dr471: yes
|
|
struct A { int n; };
|
|
struct B : private virtual A {};
|
|
struct C : protected virtual A {};
|
|
struct D : B, C { int f() { return n; } };
|
|
struct E : private virtual A {
|
|
using A::n;
|
|
};
|
|
struct F : E, B { int f() { return n; } };
|
|
struct G : virtual A {
|
|
private:
|
|
using A::n; // expected-note {{here}}
|
|
};
|
|
struct H : B, G { int f() { return n; } }; // expected-error {{private}}
|
|
}
|
|
|
|
namespace dr474 { // dr474: yes
|
|
namespace N {
|
|
struct S {
|
|
void f();
|
|
};
|
|
}
|
|
void N::S::f() {
|
|
void g(); // expected-note {{previous}}
|
|
}
|
|
int g();
|
|
namespace N {
|
|
int g(); // expected-error {{cannot be overloaded}}
|
|
}
|
|
}
|
|
|
|
// dr475 FIXME write a codegen test
|
|
|
|
namespace dr477 { // dr477: 3.5
|
|
struct A {
|
|
explicit A();
|
|
virtual void f();
|
|
};
|
|
struct B {
|
|
friend explicit A::A(); // expected-error {{'explicit' is invalid in friend declarations}}
|
|
friend virtual void A::f(); // expected-error {{'virtual' is invalid in friend declarations}}
|
|
};
|
|
explicit A::A() {} // expected-error {{can only be specified inside the class definition}}
|
|
virtual void A::f() {} // expected-error {{can only be specified inside the class definition}}
|
|
}
|
|
|
|
namespace dr478 { // dr478: yes
|
|
struct A { virtual void f() = 0; }; // expected-note {{unimplemented}}
|
|
void f(A *a);
|
|
void f(A a[10]); // expected-error {{array of abstract class type}}
|
|
}
|
|
|
|
namespace dr479 { // dr479: yes
|
|
struct S {
|
|
S();
|
|
private:
|
|
S(const S&); // expected-note +{{here}}
|
|
~S(); // expected-note +{{here}}
|
|
};
|
|
void f() {
|
|
throw S();
|
|
// expected-error@-1 {{temporary of type 'dr479::S' has private destructor}}
|
|
// expected-error@-2 {{calling a private constructor}}
|
|
// expected-error@-3 {{exception object of type 'dr479::S' has private destructor}}
|
|
#if __cplusplus < 201103L
|
|
// expected-error@-5 {{C++98 requires an accessible copy constructor}}
|
|
#endif
|
|
}
|
|
void g() {
|
|
S s; // expected-error {{private destructor}}}
|
|
throw s;
|
|
// expected-error@-1 {{calling a private constructor}}
|
|
// expected-error@-2 {{exception object of type 'dr479::S' has private destructor}}
|
|
}
|
|
void h() {
|
|
try {
|
|
f();
|
|
g();
|
|
} catch (S s) {
|
|
// expected-error@-1 {{calling a private constructor}}
|
|
// expected-error@-2 {{variable of type 'dr479::S' has private destructor}}
|
|
}
|
|
}
|
|
}
|
|
|
|
namespace dr480 { // dr480: yes
|
|
struct A { int n; };
|
|
struct B : A {};
|
|
struct C : virtual B {};
|
|
struct D : C {};
|
|
|
|
int A::*a = &A::n;
|
|
int D::*b = a; // expected-error {{virtual base}}
|
|
|
|
extern int D::*c;
|
|
int A::*d = static_cast<int A::*>(c); // expected-error {{virtual base}}
|
|
|
|
D *e;
|
|
A *f = e;
|
|
D *g = static_cast<D*>(f); // expected-error {{virtual base}}
|
|
|
|
extern D &i;
|
|
A &j = i;
|
|
D &k = static_cast<D&>(j); // expected-error {{virtual base}}
|
|
}
|
|
|
|
namespace dr481 { // dr481: yes
|
|
template<class T, T U> class A { T *x; };
|
|
T *x; // expected-error {{unknown type}}
|
|
|
|
template<class T *U> class B { T *x; };
|
|
T *y; // ok
|
|
|
|
struct C {
|
|
template<class T> void f(class D *p);
|
|
};
|
|
D *z; // ok
|
|
|
|
template<typename A = C, typename C = A> struct E {
|
|
void f() {
|
|
typedef ::dr481::C c; // expected-note {{previous}}
|
|
typedef C c; // expected-error {{different type}}
|
|
}
|
|
};
|
|
template struct E<>; // ok
|
|
template struct E<int>; // expected-note {{instantiation of}}
|
|
|
|
template<template<typename U_no_typo_correction> class A,
|
|
A<int> *B,
|
|
U_no_typo_correction *C> // expected-error {{unknown type}}
|
|
struct F {
|
|
U_no_typo_correction *x; // expected-error {{unknown type}}
|
|
};
|
|
|
|
template<template<class H *> class> struct G {
|
|
H *x;
|
|
};
|
|
H *q;
|
|
|
|
typedef int N;
|
|
template<N X, typename N, template<N Y> class T> struct I;
|
|
template<char*> struct J;
|
|
I<123, char*, J> *j;
|
|
}
|
|
|
|
namespace dr482 { // dr482: 3.5
|
|
extern int a;
|
|
void f();
|
|
|
|
int dr482::a = 0; // expected-warning {{extra qualification}}
|
|
void dr482::f() {} // expected-warning {{extra qualification}}
|
|
|
|
inline namespace X { // expected-error 0-1{{C++11 feature}}
|
|
extern int b;
|
|
void g();
|
|
struct S;
|
|
}
|
|
int dr482::b = 0; // expected-warning {{extra qualification}}
|
|
void dr482::g() {} // expected-warning {{extra qualification}}
|
|
struct dr482::S {}; // expected-warning {{extra qualification}}
|
|
|
|
void dr482::f(); // expected-warning {{extra qualification}}
|
|
void dr482::g(); // expected-warning {{extra qualification}}
|
|
|
|
// FIXME: The following are valid in DR482's wording, but these are bugs in
|
|
// the wording which we deliberately don't implement.
|
|
namespace N { typedef int type; }
|
|
typedef int N::type; // expected-error {{typedef declarator cannot be qualified}}
|
|
struct A {
|
|
struct B;
|
|
struct A::B {}; // expected-error {{extra qualification}}
|
|
|
|
#if __cplusplus >= 201103L
|
|
enum class C;
|
|
enum class A::C {}; // expected-error {{extra qualification}}
|
|
#endif
|
|
};
|
|
}
|
|
|
|
namespace dr483 { // dr483: yes
|
|
namespace climits {
|
|
int check1[__SCHAR_MAX__ >= 127 ? 1 : -1];
|
|
int check2[__SHRT_MAX__ >= 32767 ? 1 : -1];
|
|
int check3[__INT_MAX__ >= 32767 ? 1 : -1];
|
|
int check4[__LONG_MAX__ >= 2147483647 ? 1 : -1];
|
|
int check5[__LONG_LONG_MAX__ >= 9223372036854775807 ? 1 : -1];
|
|
#if __cplusplus < 201103L
|
|
// expected-error@-2 {{extension}}
|
|
#endif
|
|
}
|
|
namespace cstdint {
|
|
int check1[__PTRDIFF_WIDTH__ >= 16 ? 1 : -1];
|
|
int check2[__SIG_ATOMIC_WIDTH__ >= 8 ? 1 : -1];
|
|
int check3[__SIZE_WIDTH__ >= 16 ? 1 : -1];
|
|
int check4[__WCHAR_WIDTH__ >= 8 ? 1 : -1];
|
|
int check5[__WINT_WIDTH__ >= 16 ? 1 : -1];
|
|
}
|
|
}
|
|
|
|
namespace dr484 { // dr484: yes
|
|
struct A {
|
|
A();
|
|
void f();
|
|
};
|
|
typedef const A CA;
|
|
void CA::f() {
|
|
this->~CA();
|
|
this->CA::~A();
|
|
this->CA::A::~A();
|
|
}
|
|
CA::A() {}
|
|
|
|
struct B : CA {
|
|
B() : CA() {}
|
|
void f() { return CA::f(); }
|
|
};
|
|
|
|
struct C;
|
|
typedef C CT; // expected-note {{here}}
|
|
struct CT {}; // expected-error {{conflicts with typedef}}
|
|
|
|
namespace N {
|
|
struct D;
|
|
typedef D DT; // expected-note {{here}}
|
|
}
|
|
struct N::DT {}; // expected-error {{conflicts with typedef}}
|
|
|
|
typedef struct {
|
|
S(); // expected-error {{requires a type}}
|
|
} S;
|
|
}
|
|
|
|
namespace dr485 { // dr485: yes
|
|
namespace N {
|
|
struct S {};
|
|
int operator+(S, S);
|
|
template<typename T> int f(S);
|
|
}
|
|
template<typename T> int f();
|
|
|
|
N::S s;
|
|
int a = operator+(s, s);
|
|
int b = f<int>(s);
|
|
}
|
|
|
|
namespace dr486 { // dr486: yes
|
|
template<typename T> T f(T *); // expected-note 2{{substitution failure}}
|
|
int &f(...);
|
|
|
|
void g();
|
|
int n[10];
|
|
|
|
void h() {
|
|
int &a = f(&g);
|
|
int &b = f(&n);
|
|
f<void()>(&g); // expected-error {{no match}}
|
|
f<int[10]>(&n); // expected-error {{no match}}
|
|
}
|
|
}
|
|
|
|
namespace dr487 { // dr487: yes
|
|
enum E { e };
|
|
int operator+(int, E);
|
|
int i[4 + e]; // expected-error 2{{variable length array}}
|
|
}
|
|
|
|
namespace dr488 { // dr488: yes c++11
|
|
template <typename T> void f(T);
|
|
void f(int);
|
|
void g() {
|
|
// FIXME: It seems CWG thought this should be a SFINAE failure prior to
|
|
// allowing local types as template arguments. In C++98, we should either
|
|
// allow local types as template arguments or treat this as a SFINAE
|
|
// failure.
|
|
enum E { e };
|
|
f(e);
|
|
#if __cplusplus < 201103L
|
|
// expected-error@-2 {{local type}}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
// dr489: na
|
|
|
|
namespace dr490 { // dr490: yes
|
|
template<typename T> struct X {};
|
|
|
|
struct A {
|
|
typedef int T;
|
|
struct K {}; // expected-note {{declared}}
|
|
|
|
int f(T);
|
|
int g(T);
|
|
int h(X<T>);
|
|
int X<T>::*i(); // expected-note {{previous}}
|
|
int K::*j();
|
|
|
|
template<typename T> T k();
|
|
|
|
operator X<T>();
|
|
};
|
|
|
|
struct B {
|
|
typedef char T;
|
|
typedef int U;
|
|
friend int A::f(T);
|
|
friend int A::g(U);
|
|
friend int A::h(X<T>);
|
|
|
|
// FIXME: Per this DR, these two are valid! That is another defect
|
|
// (no number yet...) which will eventually supersede this one.
|
|
friend int X<T>::*A::i(); // expected-error {{return type}}
|
|
friend int K::*A::j(); // expected-error {{undeclared identifier 'K'; did you mean 'A::K'?}}
|
|
|
|
// ok, lookup finds B::T, not A::T, so return type matches
|
|
friend char A::k<T>();
|
|
friend int A::k<U>();
|
|
|
|
// A conversion-type-id in a conversion-function-id is always looked up in
|
|
// the class of the conversion function first.
|
|
friend A::operator X<T>();
|
|
};
|
|
}
|
|
|
|
namespace dr491 { // dr491: dup 413
|
|
struct A {} a, b[3] = { a, {} };
|
|
A c[2] = { a, {}, b[1] }; // expected-error {{excess elements}}
|
|
}
|
|
|
|
// dr492 FIXME write a codegen test
|
|
|
|
namespace dr493 { // dr493: dup 976
|
|
struct X {
|
|
template <class T> operator const T &() const;
|
|
};
|
|
void f() {
|
|
if (X()) {
|
|
}
|
|
}
|
|
}
|
|
|
|
namespace dr494 { // dr494: dup 372
|
|
class A {
|
|
class B {};
|
|
friend class C;
|
|
};
|
|
class C : A::B {
|
|
A::B x;
|
|
class D : A::B {
|
|
A::B y;
|
|
};
|
|
};
|
|
}
|
|
|
|
namespace dr495 { // dr495: 3.5
|
|
template<typename T>
|
|
struct S {
|
|
operator int() { return T::error; }
|
|
template<typename U> operator U();
|
|
};
|
|
S<int> s;
|
|
long n = s;
|
|
|
|
template<typename T>
|
|
struct S2 {
|
|
template<typename U> operator U();
|
|
operator int() { return T::error; }
|
|
};
|
|
S2<int> s2;
|
|
long n2 = s2;
|
|
}
|
|
|
|
namespace dr496 { // dr496: no
|
|
struct A { int n; };
|
|
struct B { volatile int n; };
|
|
int check1[ __is_trivially_copyable(const int) ? 1 : -1];
|
|
int check2[!__is_trivially_copyable(volatile int) ? 1 : -1];
|
|
int check3[ __is_trivially_constructible(A, const A&) ? 1 : -1];
|
|
// FIXME: This is wrong.
|
|
int check4[ __is_trivially_constructible(B, const B&) ? 1 : -1];
|
|
int check5[ __is_trivially_assignable(A, const A&) ? 1 : -1];
|
|
// FIXME: This is wrong.
|
|
int check6[ __is_trivially_assignable(B, const B&) ? 1 : -1];
|
|
}
|
|
|
|
namespace dr497 { // dr497: yes
|
|
void before() {
|
|
struct S {
|
|
mutable int i;
|
|
};
|
|
const S cs; // expected-error {{default initialization}}
|
|
int S::*pm = &S::i;
|
|
cs.*pm = 88; // expected-error {{not assignable}}
|
|
}
|
|
|
|
void after() {
|
|
struct S {
|
|
S() : i(0) {}
|
|
mutable int i;
|
|
};
|
|
const S cs;
|
|
int S::*pm = &S::i;
|
|
cs.*pm = 88; // expected-error {{not assignable}}
|
|
}
|
|
}
|
|
|
|
namespace dr499 { // dr499: yes
|
|
extern char str[];
|
|
void f() { throw str; }
|
|
}
|