1505 lines
45 KiB
C++
1505 lines
45 KiB
C++
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// RUN: env ASAN_OPTIONS=detect_stack_use_after_return=0 %clang_cc1 -std=c++98 %s -verify=expected,cxx98-14,cxx98-17,cxx98 -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=expected,cxx98-14,cxx98-17,since-cxx11 -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=expected,cxx98-14,cxx98-17,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors
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// RUN: env ASAN_OPTIONS=detect_stack_use_after_return=0 %clang_cc1 -std=c++17 %s -verify=expected,since-cxx17,cxx98-17,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors
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// RUN: env ASAN_OPTIONS=detect_stack_use_after_return=0 %clang_cc1 -std=c++20 %s -verify=expected,since-cxx17,since-cxx11 -fexceptions -fcxx-exceptions -pedantic-errors
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// RUN: env ASAN_OPTIONS=detect_stack_use_after_return=0 %clang_cc1 -std=c++23 %s -verify=expected,since-cxx17,since-cxx11 -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 {}; }; // #dr400-A
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struct B { int a; struct a {}; }; // #dr400-B
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struct C : A, B { using A::a; struct a b; };
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struct D : A, B {
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using A::a;
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// FIXME: we should issue a single diagnostic
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using B::a; // #dr400-using-B-a
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// expected-error@#dr400-using-B-a {{target of using declaration conflicts with declaration already in scope}}
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// expected-note@#dr400-B {{target of using declaration}}
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// expected-note@#dr400-A {{conflicting declaration}}
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// expected-error@#dr400-using-B-a {{target of using declaration conflicts with declaration already in scope}}
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// expected-note@#dr400-B {{target of using declaration}}
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// expected-note@#dr400-A {{conflicting declaration}}
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struct a b;
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};
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struct E : A, B { struct a b; };
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// expected-error@-1 {{member 'a' found in multiple base classes of different types}}
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// expected-note@#dr400-A {{member type 'dr400::A::a' found by ambiguous name lookup}}
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// expected-note@#dr400-B {{member type 'dr400::B::a' found by ambiguous name lookup}}
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}
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namespace dr401 { // dr401: 2.8
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template<class T, class U = typename T::type> class A : public T {}; // #dr401-A
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// expected-error@#dr401-A {{'type' is a private member of 'dr401::C'}}
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// expected-note@#dr402-friend-A-C {{in instantiation of default argument for 'A<C>' required here}}
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// expected-note@#dr402-C-type {{implicitly declared private here}}
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// expected-error@#dr401-A {{'type' is a protected member of 'dr401::B'}}
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// expected-note@#dr402-b {{in instantiation of default argument for 'A<B>' required here}}
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// expected-note@#dr402-B-type {{declared protected here}}
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// expected-error@#dr401-A {{'type' is a private member of 'dr401::D'}}
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// expected-note@#dr402-d {{in instantiation of default argument for 'A<D>' required here}}
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// expected-note@#dr402-D-type {{implicitly declared private here}}
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class B {
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protected:
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typedef int type; // #dr402-B-type
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};
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class C {
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typedef int type; // #dr402-C-type
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friend class A<C>; // #dr402-friend-A-C
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};
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class D {
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typedef int type; // #dr402-D-type
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friend class A<D, int>;
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};
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A<B> *b; // #dr402-b
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A<D> *d; // #dr402-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) {} // #dr402-f
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// cxx98-error@-1 {{default template arguments for a function template are a C++11 extension}}
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// cxx98-error@-2 {{'type' is a protected member of 'dr401::B'}}
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// cxx98-note@-3 {{in instantiation of default argument for 'f<B>' required here}}
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// cxx98-note@#dr402-f-b {{while substituting deduced template arguments into function template 'f' [with T = B, U = (no value)]}}
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// cxx98-note@#dr402-B-type {{declared protected here}}
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void g(B b) { f(b); } // #dr402-f-b
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// since-cxx11-error@-1 {{no matching function for call to 'f'}}
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// since-cxx11-note@#dr402-f {{candidate template ignored: substitution failure [with T = B, U = typename B::type]: 'type' is a protected member of 'dr401::B'}}
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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 dr405 { // dr405: yes
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// NB: also dup 218
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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); }
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// expected-error@-1 {{called object type 'int' is not a function or function pointer}}
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void test2(A::S as) { void f(); f(as); }
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// expected-error@-1 {{too many arguments to function call, expected 0, have 1}}
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// expected-note@-2 {{'f' declared here}}
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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); }
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// expected-error@-1 {{called object type 'int' is not a function or function pointer}}
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void test6(A::S as) { struct f {}; (void) f(as); }
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// expected-error@-1 {{no matching conversion for functional-style cast from 'A::S' to 'f'}}
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// expected-note@-2 {{candidate constructor (the implicit copy constructor) not viable: no known conversion from 'A::S' to 'const f' for 1st argument}}
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// since-cxx11-note@-3 {{candidate constructor (the implicit move constructor) not viable: no known conversion from 'A::S' to 'f' for 1st argument}}
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// expected-note@-4 {{candidate constructor (the implicit default constructor) not viable: requires 0 arguments, but 1 was provided}}
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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); }
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// expected-error@-1 {{use of undeclared identifier 'f'}}
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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); }
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// expected-error@-1 {{use of undeclared identifier 'f'}}
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}
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namespace dr406 { // dr406: 2.9
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typedef struct {
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static int n;
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// expected-error@-1 {{static data member 'n' not allowed in anonymous struct}}
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} A;
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typedef union {
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static int n;
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// expected-error@-1 {{static data member 'n' not allowed in anonymous union}}
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} B;
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}
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namespace dr407 { // dr407: 3.8
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// NB: reused by dr1894 and dr2199
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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; // #dr407-typedef-S
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struct S *p;
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// expected-error@-1 {{typedef 'S' cannot be referenced with a struct specifier}}
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// expected-note@#dr407-typedef-S {{declared here}}
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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 {}; // #dr407-A-S
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}
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namespace B {
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typedef int S; // #dr407-B-S
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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;
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// expected-error@-1 {{ambiguous}}
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// expected-note@#dr407-A-S {{candidate found by name lookup is 'dr407::UsingDir::A::S'}}
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// expected-note@#dr407-B-S {{candidate found by name lookup is 'dr407::UsingDir::B::S'}}
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}
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namespace D {
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using A::S;
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typedef struct S S;
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struct S s;
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}
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namespace E {
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// The standard doesn't say whether this is valid. We interpret
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// DR407 as meaning "if lookup finds both a tag and a typedef with the
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// same type, then it's OK in an elaborated-type-specifier".
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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;
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}
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// The standard doesn't say what to do in these cases either.
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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;
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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;
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// cxx98-17-error@-1 {{missing 'typename' prior to dependent type name A<T *>::B; implicit 'typename' is a C++20 extension}}
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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(); // #dr410-z
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};
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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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}
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template<> void f(int) { M::A::z(); }
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void g(int) { M::A::z(); }
|
||
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// expected-error@-1 {{'z' is a private member of 'dr410::M::A'}}
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||
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// expected-note@#dr410-z {{declared private here}}
|
||
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}
|
||
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|
||
|
|
// dr412 is in dr412.cpp
|
||
|
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|
||
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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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};
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||
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S s = { 1, 2, 3 };
|
||
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// expected-error@-1 {{excess elements in struct initializer}}
|
||
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|
||
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struct E {};
|
||
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struct T { // #dr413-T
|
||
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int a;
|
||
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E e;
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||
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int b;
|
||
|
|
};
|
||
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T t1 = { 1, {}, 2 };
|
||
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T t2 = { 1, 2 };
|
||
|
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// expected-error@-1 {{initializer for aggregate with no elements requires explicit braces}}
|
||
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|
// expected-note@#dr413-T {{'dr413::T' declared here}}
|
||
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|
}
|
||
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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;
|
||
|
|
struct X {};
|
||
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x.~X();
|
||
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|
}
|
||
|
|
}
|
||
|
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|
||
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|
namespace dr415 { // dr415: yes
|
||
|
|
template<typename T> void f(T, ...) { T::error; }
|
||
|
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void f(int, int);
|
||
|
|
void g() { f(0, 0); } // ok
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr416 { // dr416: yes
|
||
|
|
extern struct A a;
|
||
|
|
int &operator+(const A&, const A&);
|
||
|
|
int &k = a + a;
|
||
|
|
struct A { float &operator+(A&); };
|
||
|
|
float &f = a + a;
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr417 { // dr417: no
|
||
|
|
struct A;
|
||
|
|
struct dr417::A {};
|
||
|
|
// expected-warning@-1 {{extra qualification on member 'A'}}
|
||
|
|
struct B { struct X; };
|
||
|
|
struct C : B {};
|
||
|
|
struct C::X {};
|
||
|
|
// expected-error@-1 {{no struct named 'X' in 'dr417::C'}}
|
||
|
|
struct B::X { struct Y; };
|
||
|
|
struct C::X::Y {}; // ok!
|
||
|
|
namespace N {
|
||
|
|
struct D;
|
||
|
|
struct E;
|
||
|
|
struct F;
|
||
|
|
struct H;
|
||
|
|
}
|
||
|
|
// FIXME: This is ill-formed.
|
||
|
|
using N::D;
|
||
|
|
struct dr417::D {};
|
||
|
|
// expected-warning@-1 {{extra qualification on member 'D'}}
|
||
|
|
using namespace N;
|
||
|
|
struct dr417::E {};
|
||
|
|
// expected-error@-1 {{no struct named 'E' in namespace 'dr417'}}
|
||
|
|
// expected-warning@-2 {{extra qualification on member 'E'}}
|
||
|
|
struct N::F {};
|
||
|
|
struct G;
|
||
|
|
using N::H;
|
||
|
|
namespace M {
|
||
|
|
struct dr417::G {};
|
||
|
|
// expected-error@-1 {{cannot define or redeclare 'G' here because namespace 'M' does not enclose namespace 'dr417'}}
|
||
|
|
struct dr417::H {};
|
||
|
|
// expected-error@-1 {{cannot define or redeclare 'H' here because namespace 'M' does not enclose namespace 'dr417'}}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr418 { // dr418: no
|
||
|
|
namespace example1 {
|
||
|
|
void f1(int, int = 0);
|
||
|
|
void f1(int = 0, int);
|
||
|
|
|
||
|
|
void g() { f1(); }
|
||
|
|
} // namespace example1
|
||
|
|
|
||
|
|
namespace example2 {
|
||
|
|
namespace A {
|
||
|
|
void f2(int); // #dr418-f2
|
||
|
|
}
|
||
|
|
namespace B {
|
||
|
|
using A::f2;
|
||
|
|
}
|
||
|
|
namespace A {
|
||
|
|
void f2(int = 3);
|
||
|
|
}
|
||
|
|
void g2() {
|
||
|
|
using B::f2;
|
||
|
|
f2();
|
||
|
|
// expected-error@-1 {{no matching function for call to 'f2'}}
|
||
|
|
// expected-note@#dr418-f2 {{candidate function not viable: requires 1 argument, but 0 were provided}}
|
||
|
|
}
|
||
|
|
} // namespace example2
|
||
|
|
|
||
|
|
// example from [over.match.best]/4
|
||
|
|
namespace example3 {
|
||
|
|
namespace A {
|
||
|
|
extern "C" void f(int = 5);
|
||
|
|
}
|
||
|
|
namespace B {
|
||
|
|
extern "C" void f(int = 5);
|
||
|
|
}
|
||
|
|
|
||
|
|
using A::f;
|
||
|
|
using B::f;
|
||
|
|
|
||
|
|
void use() {
|
||
|
|
f(3);
|
||
|
|
f(); // FIXME: this should fail
|
||
|
|
}
|
||
|
|
} // namespace example3
|
||
|
|
} // namespace dr418
|
||
|
|
|
||
|
|
namespace dr420 { // dr420: 9
|
||
|
|
template<typename T> struct ptr {
|
||
|
|
T *operator->() const;
|
||
|
|
T &operator*() const;
|
||
|
|
};
|
||
|
|
template<typename T, typename P> void test(P p) {
|
||
|
|
p->~T();
|
||
|
|
p->T::~T();
|
||
|
|
(*p).~T();
|
||
|
|
(*p).T::~T();
|
||
|
|
}
|
||
|
|
struct X {};
|
||
|
|
template void test<int>(int*);
|
||
|
|
template void test<int>(ptr<int>);
|
||
|
|
template void test<X>(X*);
|
||
|
|
template void test<X>(ptr<X>);
|
||
|
|
|
||
|
|
template<typename T>
|
||
|
|
void test2(T p) {
|
||
|
|
p->template Y<int>::~Y<int>();
|
||
|
|
p->~Y<int>();
|
||
|
|
p->template ~Y<int>();
|
||
|
|
// expected-error@-1 {{'template' keyword not permitted in destructor name}}
|
||
|
|
}
|
||
|
|
template<typename T> struct Y {};
|
||
|
|
template void test2(Y<int>*);
|
||
|
|
template void test2(ptr<Y<int> >);
|
||
|
|
|
||
|
|
void test3(int *p, ptr<int> q) {
|
||
|
|
typedef int Int;
|
||
|
|
p->~Int();
|
||
|
|
q->~Int();
|
||
|
|
p->Int::~Int();
|
||
|
|
q->Int::~Int();
|
||
|
|
}
|
||
|
|
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
template<typename T> using id = T;
|
||
|
|
struct A { template<typename T> using id = T; };
|
||
|
|
void test4(int *p, ptr<int> q) {
|
||
|
|
p->~id<int>();
|
||
|
|
q->~id<int>();
|
||
|
|
p->id<int>::~id<int>();
|
||
|
|
q->id<int>::~id<int>();
|
||
|
|
p->template id<int>::~id<int>(); // OK since dr2292
|
||
|
|
q->template id<int>::~id<int>(); // OK since dr2292
|
||
|
|
p->A::template id<int>::~id<int>();
|
||
|
|
q->A::template id<int>::~id<int>();
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr421 { // dr421: yes
|
||
|
|
struct X { X(); int n; int &r; };
|
||
|
|
int *p = &X().n;
|
||
|
|
// cxx98-error@-1 {{taking the address of a temporary object of type 'int'}}
|
||
|
|
// since-cxx11-error@-2 {{cannot take the address of an rvalue of type 'int'}}
|
||
|
|
int *q = &X().r;
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr422 { // dr422: yes
|
||
|
|
template<typename T, typename U> void f() {
|
||
|
|
typedef T type; // #dr422-typedef-T
|
||
|
|
typedef U type;
|
||
|
|
// expected-error@-1 {{typedef redefinition with different types ('char' vs 'int')}}
|
||
|
|
// expected-note@#dr422-f-int-char {{in instantiation of function template specialization 'dr422::f<int, char>' requested here}}
|
||
|
|
// expected-note@#dr422-typedef-T {{previous definition is here}}
|
||
|
|
}
|
||
|
|
template void f<int, int>();
|
||
|
|
template void f<int, char>(); // #dr422-f-int-char
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr423 { // dr423: yes
|
||
|
|
template<typename T> struct X { operator T&(); };
|
||
|
|
void f(X<int> x) { x += 1; }
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr424 { // dr424: yes
|
||
|
|
struct A {
|
||
|
|
typedef int N; // #dr424-N
|
||
|
|
typedef int N;
|
||
|
|
// expected-error@-1 {{redefinition of 'N'}}
|
||
|
|
// expected-note@#dr424-N {{previous definition is here}}
|
||
|
|
|
||
|
|
struct X;
|
||
|
|
typedef X X; // #dr424-X
|
||
|
|
struct X {};
|
||
|
|
|
||
|
|
struct X *p;
|
||
|
|
struct A::X *q;
|
||
|
|
X *r;
|
||
|
|
|
||
|
|
typedef X X;
|
||
|
|
// expected-error@-1 {{redefinition of 'X'}}
|
||
|
|
// expected-note@#dr424-X {{previous definition is here}}
|
||
|
|
};
|
||
|
|
struct B {
|
||
|
|
typedef int M;
|
||
|
|
};
|
||
|
|
struct C : B {
|
||
|
|
typedef int M; // #dr424-M
|
||
|
|
typedef int M;
|
||
|
|
// expected-error@-1 {{redefinition of 'M'}}
|
||
|
|
// expected-note@#dr424-M {{previous definition is here}}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr425 { // dr425: yes
|
||
|
|
struct A { template<typename T> operator T() const; } a;
|
||
|
|
float f = 1.0f * a;
|
||
|
|
// expected-error@-1 {{use of overloaded operator '*' is ambiguous (with operand types 'float' and 'struct A')}}
|
||
|
|
// expected-note@-2 +{{built-in candidate}}
|
||
|
|
|
||
|
|
template<typename T> struct is_float;
|
||
|
|
template<> struct is_float<float> { typedef void type; };
|
||
|
|
|
||
|
|
struct B {
|
||
|
|
template<typename T, typename U = typename is_float<T>::type> operator T() const;
|
||
|
|
// cxx98-error@-1 {{default template arguments for a function template are a C++11 extension}}
|
||
|
|
} b;
|
||
|
|
float g = 1.0f * b; // ok
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr427 { // dr427: yes
|
||
|
|
struct B {};
|
||
|
|
struct D : public B {
|
||
|
|
D(B &) = delete; // #dr427-D
|
||
|
|
// cxx98-error@-1 {{deleted function definitions are a C++11 extension}}
|
||
|
|
};
|
||
|
|
|
||
|
|
extern D d1;
|
||
|
|
B &b = d1;
|
||
|
|
const D &d2 = static_cast<const D&>(b);
|
||
|
|
const D &d3 = (const D&)b;
|
||
|
|
const D &d4(b);
|
||
|
|
// expected-error@-1 {{conversion function from 'B' to 'const D' invokes a deleted function}}
|
||
|
|
// expected-note@#dr427-D {{'D' has been explicitly marked deleted here}}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr428 { // dr428: yes
|
||
|
|
template<typename T> T make();
|
||
|
|
extern struct X x; // #dr428-X
|
||
|
|
void f() {
|
||
|
|
throw void();
|
||
|
|
// expected-error@-1 {{cannot throw}}
|
||
|
|
throw make<void*>();
|
||
|
|
throw make<const volatile void*>();
|
||
|
|
throw x;
|
||
|
|
// expected-error@-1 {{cannot throw}}
|
||
|
|
// expected-note@#dr428-X {{forward declaration of 'dr428::X'}}
|
||
|
|
throw make<X&>();
|
||
|
|
// expected-error@-1 {{cannot throw}}
|
||
|
|
// expected-note@#dr428-X {{forward declaration of 'dr428::X'}}
|
||
|
|
throw make<X*>();
|
||
|
|
// expected-error@-1 {{cannot throw}}
|
||
|
|
// expected-note@#dr428-X {{forward declaration of 'dr428::X'}}
|
||
|
|
throw make<const volatile X&>();
|
||
|
|
// expected-error@-1 {{cannot throw}}
|
||
|
|
// expected-note@#dr428-X {{forward declaration of 'dr428::X'}}
|
||
|
|
throw make<const volatile X*>();
|
||
|
|
// expected-error@-1 {{cannot throw}}
|
||
|
|
// expected-note@#dr428-X {{forward declaration of 'dr428::X'}}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr429 { // dr429: 2.8 c++11
|
||
|
|
// FIXME: This rule is obviously intended to apply to C++98 as well.
|
||
|
|
struct A {
|
||
|
|
static void *operator new(size_t, size_t);
|
||
|
|
static void operator delete(void*, size_t); // #dr429-delete
|
||
|
|
} *a = new (0) A;
|
||
|
|
// since-cxx11-error@-1 {{'new' expression with placement arguments refers to non-placement 'operator delete'}}
|
||
|
|
// since-cxx11-note@#dr429-delete {{here}}
|
||
|
|
struct B {
|
||
|
|
static void *operator new(size_t, size_t);
|
||
|
|
static void operator delete(void*);
|
||
|
|
static void operator delete(void*, size_t);
|
||
|
|
} *b = new (0) B; // ok, second delete is not a non-placement deallocation function
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr430 { // dr430: yes c++11
|
||
|
|
// resolved by n2239
|
||
|
|
// FIXME: This should apply in C++98 too.
|
||
|
|
void f(int n) {
|
||
|
|
int a[] = { n++, n++, n++ };
|
||
|
|
// cxx98-warning@-1 {{multiple unsequenced modifications to 'n'}}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr431 { // dr431: yes
|
||
|
|
struct A {
|
||
|
|
template<typename T> T *get();
|
||
|
|
template<typename T> struct B {
|
||
|
|
template<typename U> U *get();
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
template<typename T> void f(A a) {
|
||
|
|
a.get<A>()->get<T>();
|
||
|
|
a.get<T>()
|
||
|
|
->get<T>();
|
||
|
|
// expected-error@-1 {{use 'template' keyword to treat 'get' as a dependent template name}}
|
||
|
|
a.get<T>()->template get<T>();
|
||
|
|
a.A::get<T>();
|
||
|
|
A::B<int> *b = a.get<A::B<int> >();
|
||
|
|
b->get<int>();
|
||
|
|
b->A::B<int>::get<int>();
|
||
|
|
b->A::B<int>::get<T>();
|
||
|
|
b->A::B<T>::get<int>();
|
||
|
|
// expected-error@-1 {{use 'template' keyword to treat 'get' as a dependent template name}}
|
||
|
|
b->A::B<T>::template get<int>();
|
||
|
|
b->A::B<T>::get<T>();
|
||
|
|
// expected-error@-1 {{use 'template' keyword to treat 'get' as a dependent template name}}
|
||
|
|
b->A::B<T>::template get<T>();
|
||
|
|
A::B<T> *c = a.get<A::B<T> >();
|
||
|
|
c->get<int>();
|
||
|
|
// expected-error@-1 {{use 'template' keyword to treat 'get' as a dependent template name}}
|
||
|
|
c->template get<int>();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr432 { // dr432: 3.0
|
||
|
|
template<typename T> struct A {};
|
||
|
|
template<typename T> struct B : A<B> {};
|
||
|
|
// expected-error@-1 {{use of class template 'B' requires template arguments}}
|
||
|
|
// expected-note@-2 {{template is declared here}}
|
||
|
|
template<typename T> struct C : A<C<T> > {};
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
template<typename T> struct D : decltype(A<D>()) {};
|
||
|
|
// since-cxx11-error@-1 {{use of class template 'D' requires template arguments}}
|
||
|
|
// since-cxx11-note@-2 {{template is declared here}}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr433 { // dr433: yes
|
||
|
|
template<class T> struct S {
|
||
|
|
void f(union U*);
|
||
|
|
};
|
||
|
|
U *p;
|
||
|
|
template<class T> void S<T>::f(union U*) {}
|
||
|
|
|
||
|
|
S<int> s;
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr434 { // dr434: sup 2352
|
||
|
|
void f() {
|
||
|
|
const int ci = 0;
|
||
|
|
int *pi = 0;
|
||
|
|
const int *&rpci = pi;
|
||
|
|
// expected-error@-1 {{binding reference of type 'const int *' to value of type 'int *' not permitted due to incompatible qualifiers}}
|
||
|
|
const int * const &rcpci = pi; // OK
|
||
|
|
rpci = &ci;
|
||
|
|
*pi = 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
int *pi = 0;
|
||
|
|
const int * const &rcpci = pi;
|
||
|
|
static_assert(&rcpci == &pi, "");
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
// dr435: na
|
||
|
|
|
||
|
|
namespace dr436 { // dr436: yes
|
||
|
|
enum E { f }; // #dr436-f
|
||
|
|
void f();
|
||
|
|
// expected-error@-1 {{redefinition of 'f' as different kind of symbol}}
|
||
|
|
// expected-note@#dr436-f {{previous definition is here}}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr437 { // dr437: sup 1308
|
||
|
|
// This is superseded by 1308, which is in turn superseded by 1330,
|
||
|
|
// which restores this rule.
|
||
|
|
template<typename U> struct T : U {};
|
||
|
|
struct S {
|
||
|
|
void f() throw(S);
|
||
|
|
// since-cxx17-error@-1 {{ISO C++17 does not allow dynamic exception specifications}}
|
||
|
|
// since-cxx17-note@-2 {{use 'noexcept(false)' instead}}
|
||
|
|
void g() throw(T<S>);
|
||
|
|
// since-cxx17-error@-1 {{ISO C++17 does not allow dynamic exception specifications}}
|
||
|
|
// since-cxx17-note@-2 {{use 'noexcept(false)' instead}}
|
||
|
|
struct U;
|
||
|
|
void h() throw(U);
|
||
|
|
// since-cxx17-error@-1 {{ISO C++17 does not allow dynamic exception specifications}}
|
||
|
|
// since-cxx17-note@-2 {{use 'noexcept(false)' instead}}
|
||
|
|
struct U {};
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
// dr438 FIXME write a codegen test
|
||
|
|
// dr439 FIXME write a codegen test
|
||
|
|
// dr441 FIXME write a codegen test
|
||
|
|
// dr442: sup 348
|
||
|
|
// dr443: na
|
||
|
|
|
||
|
|
namespace dr444 { // dr444: yes
|
||
|
|
struct D;
|
||
|
|
struct B { // #dr444-B
|
||
|
|
D &operator=(D &) = delete; // #dr444-deleted
|
||
|
|
// cxx98-error@-1 {{deleted function definitions are a C++11 extension}}
|
||
|
|
};
|
||
|
|
struct D : B { // #dr444-D
|
||
|
|
using B::operator=;
|
||
|
|
} extern d;
|
||
|
|
void f() {
|
||
|
|
d = d;
|
||
|
|
// expected-error@-1 {{overload resolution selected deleted operator '='}}
|
||
|
|
// expected-note@#dr444-deleted {{candidate function has been explicitly deleted}}
|
||
|
|
// expected-note@#dr444-D {{candidate function (the implicit copy assignment operator)}}
|
||
|
|
// expected-note@#dr444-B {{candidate function (the implicit copy assignment operator)}}
|
||
|
|
// since-cxx11-note@#dr444-B {{candidate function (the implicit move assignment operator) not viable: expects an rvalue for 1st argument}}
|
||
|
|
// since-cxx11-note@#dr444-D {{candidate function (the implicit move assignment operator) not viable: expects an rvalue for 1st argument}}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr445 { // dr445: 3.2
|
||
|
|
class A { void f(); }; // #dr445-f
|
||
|
|
struct B {
|
||
|
|
friend void A::f();
|
||
|
|
// expected-error@-1 {{friend function 'f' is a private member of 'dr445::A'}}
|
||
|
|
// expected-note@#dr445-f {{implicitly declared private here}}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr446 { // dr446: 2.8
|
||
|
|
struct C;
|
||
|
|
struct A {
|
||
|
|
A();
|
||
|
|
A(const A&) = delete; // #dr446-deleted
|
||
|
|
// cxx98-error@-1 {{deleted function definitions are a C++11 extension}}
|
||
|
|
A(const C&);
|
||
|
|
};
|
||
|
|
struct C : A {};
|
||
|
|
void f(A a, bool b, C c) {
|
||
|
|
void(b ? a : a);
|
||
|
|
b ? A() : a;
|
||
|
|
// expected-error@-1 {{call to deleted constructor of 'A'}}
|
||
|
|
// expected-note@#dr446-deleted {{'A' has been explicitly marked deleted here}}
|
||
|
|
b ? a : A();
|
||
|
|
// expected-error@-1 {{call to deleted constructor of 'A'}}
|
||
|
|
// expected-note@#dr446-deleted {{'A' has been explicitly marked deleted here}}
|
||
|
|
b ? A() : A();
|
||
|
|
// cxx98-14-error@-1 {{call to deleted constructor of 'A'}}
|
||
|
|
// expected-note@#dr446-deleted {{'A' has been explicitly marked deleted here}}
|
||
|
|
|
||
|
|
void(b ? a : c);
|
||
|
|
b ? a : C();
|
||
|
|
// expected-error@-1 {{call to deleted constructor of 'A'}}
|
||
|
|
// cxx98-14-note@#dr446-deleted {{'A' has been explicitly marked deleted here}}
|
||
|
|
b ? c : A();
|
||
|
|
// cxx98-14-error@-1 {{call to deleted constructor of 'A'}}
|
||
|
|
// cxx98-14-note@#dr446-deleted {{'A' has been explicitly marked deleted here}}
|
||
|
|
b ? A() : C();
|
||
|
|
// cxx98-14-error@-1 {{call to deleted constructor of 'A'}}
|
||
|
|
// cxx98-14-note@#dr446-deleted {{'A' has been explicitly marked deleted here}}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
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;
|
||
|
|
// FIXME: instead of ";", we should be suggesting "typename"
|
||
|
|
U<__builtin_offsetof(T, n)>::type b;
|
||
|
|
// expected-error@-1 {{expected ';' after expression}}
|
||
|
|
// expected-error@-2 {{use of undeclared identifier 'b'}}
|
||
|
|
// as an extension, we allow the member-designator to include array indices
|
||
|
|
g(__builtin_offsetof(A, a[0])).h<int>();
|
||
|
|
g(__builtin_offsetof(A, a[N])).h<int>();
|
||
|
|
U<__builtin_offsetof(A, a[0])>::type c;
|
||
|
|
// FIXME: instead of ";", we should be suggesting "typename"
|
||
|
|
U<__builtin_offsetof(A, a[N])>::type d;
|
||
|
|
// expected-error@-1 {{expected ';' after expression}}
|
||
|
|
// expected-error@-2 {{use of undeclared identifier 'd'}}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr448 { // dr448: 2.8
|
||
|
|
template<typename T = int> void f(int); // #dr448-f-int
|
||
|
|
// cxx98-error@-1 {{default template arguments for a function template are a C++11 extension}}
|
||
|
|
template<typename T> void g(T t) {
|
||
|
|
f<T>(t);
|
||
|
|
// expected-error@-1 {{call to function 'f' that is neither visible in the template definition nor found by argument-dependent lookup}}
|
||
|
|
// expected-note@#dr448-g {{in instantiation of function template specialization 'dr448::g<dr448::HideFromADL::X>' requested here}}
|
||
|
|
// expected-note@#dr448-f-T {{'f' should be declared prior to the call site or in namespace 'dr448::HideFromADL'}}
|
||
|
|
dr448::f(t);
|
||
|
|
// expected-error@-1 {{no matching function for call to 'f'}}
|
||
|
|
// expected-note@#dr448-f-int {{candidate function template not viable: no known conversion from 'dr448::HideFromADL::X' to 'int' for 1st argument}}
|
||
|
|
}
|
||
|
|
template<typename T> void f(T); // #dr448-f-T
|
||
|
|
namespace HideFromADL { struct X {}; }
|
||
|
|
template void g(int); // ok
|
||
|
|
template void g(HideFromADL::X); // #dr448-g
|
||
|
|
}
|
||
|
|
|
||
|
|
// dr449: na
|
||
|
|
|
||
|
|
namespace dr450 { // dr450: yes
|
||
|
|
typedef int A[3];
|
||
|
|
void f1(const A &);
|
||
|
|
void f2(A &); // #dr450-f2
|
||
|
|
struct S { A n; };
|
||
|
|
void g() {
|
||
|
|
f1(S().n);
|
||
|
|
f2(S().n);
|
||
|
|
// expected-error@-1 {{no matching function for call to 'f2'}}}
|
||
|
|
// expected-note@#dr450-f2 {{candidate function not viable: expects an lvalue for 1st argument}}
|
||
|
|
}
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
void h() {
|
||
|
|
f1(A{});
|
||
|
|
f2(A{});
|
||
|
|
// expected-error@-1 {{no matching function for call to 'f2'}}}
|
||
|
|
// expected-note@#dr450-f2 {{candidate function not viable: expects an lvalue for 1st argument}}
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr451 { // dr451: yes
|
||
|
|
const int a = 1 / 0;
|
||
|
|
// expected-warning@-1 {{division by zero is undefined}}
|
||
|
|
const int b = 1 / 0; // #dr451-b
|
||
|
|
// expected-warning@-1 {{division by zero is undefined}}
|
||
|
|
int arr[b]; // #dr451-arr
|
||
|
|
// expected-error@-1 {{variable length arrays in C++ are a Clang extension}}
|
||
|
|
// expected-note@-2 {{initializer of 'b' is not a constant expression}}
|
||
|
|
// expected-note@#dr451-b {{declared here}}
|
||
|
|
// expected-error@#dr451-arr {{variable length array declaration not allowed at file scope}}
|
||
|
|
}
|
||
|
|
|
||
|
|
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;
|
||
|
|
// cxx98-warning@-1 {{expression which evaluates to zero treated as a null pointer constant of type 'void *'}}
|
||
|
|
// since-cxx11-error@-2 {{cannot initialize a variable of type 'void *' with an lvalue of type 'const int'}}
|
||
|
|
|
||
|
|
const bool f = false;
|
||
|
|
void *q = f;
|
||
|
|
// cxx98-warning@-1 {{initialization of pointer of type 'void *' to null from a constant boolean}}
|
||
|
|
// since-cxx11-error@-2 {{cannot initialize a variable of type 'void *' with an lvalue of type 'const bool'}}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr457 { // dr457: yes
|
||
|
|
const int a = 1;
|
||
|
|
const volatile int b = 1;
|
||
|
|
int ax[a];
|
||
|
|
int bx[b];
|
||
|
|
// expected-error@-1 {{variable length arrays in C++ are a Clang extension}}
|
||
|
|
// expected-note@-2 {{read of volatile-qualified type 'const volatile int' is not allowed in a constant expression}}
|
||
|
|
// expected-error@-3 {{variable length array declaration not allowed at file scope}}
|
||
|
|
|
||
|
|
enum E {
|
||
|
|
ea = a,
|
||
|
|
eb = b
|
||
|
|
// expected-error@-1 {{expression is not an integral constant expression}}
|
||
|
|
// expected-note@-2 {{read of volatile-qualified type 'const volatile int' is not allowed in a constant expression}}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr458 { // dr458: 11
|
||
|
|
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> // #dr458-g-T
|
||
|
|
int A::g() {
|
||
|
|
return T;
|
||
|
|
// expected-error@-1 {{'T' does not refer to a value}}
|
||
|
|
// expected-note@#dr458-g-T {{declared here}}
|
||
|
|
}
|
||
|
|
|
||
|
|
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> // #dr458-h-T
|
||
|
|
int B<U>::h() {
|
||
|
|
return T;
|
||
|
|
// expected-error@-1 {{'T' does not refer to a value}}
|
||
|
|
// expected-note@#dr458-h-T {{declared here}}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr460 { // dr460: yes
|
||
|
|
namespace X { namespace Q { int n; } }
|
||
|
|
namespace Y {
|
||
|
|
using X;
|
||
|
|
// expected-error@-1 {{using declaration requires a qualified name}}
|
||
|
|
using dr460::X;
|
||
|
|
// expected-error@-1 {{using declaration cannot refer to a namespace}}
|
||
|
|
using X::Q;
|
||
|
|
// expected-error@-1 {{using declaration cannot refer to a 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@-1 {{cannot jump from this goto statement to its label}}
|
||
|
|
// expected-note@#dr467-k {{jump bypasses variable initialization}}
|
||
|
|
int k = stuff(); // #dr467-k
|
||
|
|
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;
|
||
|
|
// cxx98-error@-1 {{'template' keyword outside of a template}}
|
||
|
|
// cxx98-error@-2 {{'template' keyword outside of a template}}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr469 { // dr469: no
|
||
|
|
template<typename T> struct X; // #dr469-X
|
||
|
|
template<typename T> struct X<const T> {};
|
||
|
|
X<int&> x;
|
||
|
|
// expected-error@-1 {{implicit instantiation of undefined template 'dr469::X<int &>'}}
|
||
|
|
// expected-note@#dr469-X {{template is declared here}}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr470 { // dr470: yes
|
||
|
|
template<typename T> struct A {
|
||
|
|
struct B {};
|
||
|
|
};
|
||
|
|
template<typename T> struct C {
|
||
|
|
};
|
||
|
|
|
||
|
|
template struct A<int>; // #dr470-A-int
|
||
|
|
template struct A<int>::B;
|
||
|
|
// expected-error@-1 {{duplicate explicit instantiation of 'B'}}
|
||
|
|
// expected-note@#dr470-A-int {{previous explicit instantiation is here}}
|
||
|
|
|
||
|
|
// ok, instantiating C<char> doesn't instantiate base class members.
|
||
|
|
template struct A<char>;
|
||
|
|
template struct C<char>;
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr471 { // dr471: 2.8
|
||
|
|
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; // #dr471-G-using
|
||
|
|
};
|
||
|
|
struct H : B, G { int f() { return n; } };
|
||
|
|
// expected-error@-1 {{'n' is a private member of 'dr471::G'}}
|
||
|
|
// expected-note@#dr471-G-using {{declared private here}}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr474 { // dr474: 3.4
|
||
|
|
namespace N {
|
||
|
|
struct S {
|
||
|
|
void f();
|
||
|
|
};
|
||
|
|
}
|
||
|
|
void N::S::f() {
|
||
|
|
void g(); // #dr474-g
|
||
|
|
}
|
||
|
|
int g();
|
||
|
|
namespace N {
|
||
|
|
int g();
|
||
|
|
// expected-error@-1 {{functions that differ only in their return type cannot be overloaded}}
|
||
|
|
// expected-note@#dr474-g {{previous declaration is here}}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// 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@-1 {{'explicit' is invalid in friend declarations}}
|
||
|
|
friend virtual void A::f();
|
||
|
|
// expected-error@-1 {{'virtual' is invalid in friend declarations}}
|
||
|
|
};
|
||
|
|
explicit A::A() {}
|
||
|
|
// expected-error@-1 {{can only be specified inside the class definition}}
|
||
|
|
virtual void A::f() {}
|
||
|
|
// expected-error@-1 {{can only be specified inside the class definition}}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr478 { // dr478: yes
|
||
|
|
struct A { virtual void f() = 0; }; // #dr478-f
|
||
|
|
void f(A *a);
|
||
|
|
void f(A a[10]);
|
||
|
|
// expected-error@-1 {{array of abstract class type 'A'}}
|
||
|
|
// expected-note@#dr478-f {{unimplemented pure virtual method 'f' in 'A'}}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr479 { // dr479: 2.8
|
||
|
|
struct S {
|
||
|
|
S();
|
||
|
|
private:
|
||
|
|
S(const S&); // #dr479-S-copy-ctor
|
||
|
|
~S(); // #dr479-S-dtor
|
||
|
|
};
|
||
|
|
void f() {
|
||
|
|
throw S();
|
||
|
|
// expected-error@-1 {{temporary of type 'S' has private destructor}}
|
||
|
|
// expected-note@#dr479-S-dtor {{declared private here}}
|
||
|
|
// expected-error@-3 {{exception object of type 'S' has private destructor}}
|
||
|
|
// expected-note@#dr479-S-dtor {{declared private here}}
|
||
|
|
// cxx98-error@-5 {{C++98 requires an accessible copy constructor for class 'dr479::S' when binding a reference to a temporary; was private}}
|
||
|
|
// cxx98-note@#dr479-S-copy-ctor {{declared private here}}
|
||
|
|
// cxx98-14-error@-7 {{calling a private constructor of class 'dr479::S'}}
|
||
|
|
// cxx98-14-note@#dr479-S-copy-ctor {{declared private here}}
|
||
|
|
}
|
||
|
|
void g() {
|
||
|
|
S s;
|
||
|
|
// expected-error@-1 {{variable of type 'S' has private destructor}}
|
||
|
|
// expected-note@#dr479-S-dtor {{declared private here}}
|
||
|
|
throw s;
|
||
|
|
// expected-error@-1 {{exception object of type 'S' has private destructor}}
|
||
|
|
// expected-note@#dr479-S-dtor {{declared private here}}
|
||
|
|
// expected-error@-3 {{calling a private constructor of class 'dr479::S'}}
|
||
|
|
// expected-note@#dr479-S-copy-ctor {{declared private here}}
|
||
|
|
}
|
||
|
|
void h() {
|
||
|
|
try {
|
||
|
|
f();
|
||
|
|
g();
|
||
|
|
} catch (S s) {
|
||
|
|
// expected-error@-1 {{calling a private constructor of class 'dr479::S'}}
|
||
|
|
// expected-note@#dr479-S-copy-ctor {{declared private here}}
|
||
|
|
// expected-error@-3 {{variable of type 'S' has private destructor}}
|
||
|
|
// expected-note@#dr479-S-dtor {{declared private here}}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
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@-1 {{conversion from pointer to member of class 'dr480::A' to pointer to member of class 'dr480::D' via virtual base 'dr480::B' is not allowed}}
|
||
|
|
|
||
|
|
extern int D::*c;
|
||
|
|
int A::*d = static_cast<int A::*>(c);
|
||
|
|
// expected-error@-1 {{conversion from pointer to member of class 'dr480::D' to pointer to member of class 'dr480::A' via virtual base 'dr480::B' is not allowed}}
|
||
|
|
|
||
|
|
D *e;
|
||
|
|
A *f = e;
|
||
|
|
D *g = static_cast<D*>(f);
|
||
|
|
// expected-error@-1 {{cannot cast 'dr480::A *' to 'D *' via virtual base 'dr480::B'}}
|
||
|
|
|
||
|
|
extern D &i;
|
||
|
|
A &j = i;
|
||
|
|
D &k = static_cast<D&>(j);
|
||
|
|
// expected-error@-1 {{cannot cast 'A' to 'D &' via virtual base 'dr480::B'}}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr481 { // dr481: 2.8
|
||
|
|
template<class T, T U> class A { T *x; };
|
||
|
|
T *x;
|
||
|
|
// expected-error@-1 {{unknown type name 'T'}}
|
||
|
|
|
||
|
|
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; // #dr481-c
|
||
|
|
typedef C c;
|
||
|
|
// expected-error@-1 {{typedef redefinition with different types ('int' vs '::dr481::C')}}
|
||
|
|
// expected-note@#dr481-E-int {{in instantiation of member function 'dr481::E<int>::f' requested here}}
|
||
|
|
// expected-note@#dr481-c {{previous definition is here}}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
template struct E<>; // ok
|
||
|
|
template struct E<int>; // #dr481-E-int
|
||
|
|
|
||
|
|
template<template<typename U_no_typo_correction> class A,
|
||
|
|
A<int> *B,
|
||
|
|
U_no_typo_correction *C>
|
||
|
|
// expected-error@-1 {{unknown type name 'U_no_typo_correction'}}
|
||
|
|
struct F {
|
||
|
|
U_no_typo_correction *x;
|
||
|
|
// expected-error@-1 {{unknown type name 'U_no_typo_correction'}}
|
||
|
|
};
|
||
|
|
|
||
|
|
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@-1 {{extra qualification on member 'a'}}
|
||
|
|
void dr482::f() {}
|
||
|
|
// expected-warning@-1 {{extra qualification on member 'f'}}
|
||
|
|
|
||
|
|
inline namespace X {
|
||
|
|
// cxx98-error@-1 {{inline namespaces are a C++11 feature}}
|
||
|
|
extern int b;
|
||
|
|
void g();
|
||
|
|
struct S;
|
||
|
|
}
|
||
|
|
int dr482::b = 0;
|
||
|
|
// expected-warning@-1 {{extra qualification on member 'b'}}
|
||
|
|
void dr482::g() {}
|
||
|
|
// expected-warning@-1 {{extra qualification on member 'g'}}
|
||
|
|
struct dr482::S {};
|
||
|
|
// expected-warning@-1 {{extra qualification on member 'S'}}
|
||
|
|
|
||
|
|
void dr482::f();
|
||
|
|
// expected-warning@-1 {{extra qualification on member 'f'}}
|
||
|
|
void dr482::g();
|
||
|
|
// expected-warning@-1 {{extra qualification on member 'g'}}
|
||
|
|
|
||
|
|
// 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@-1 {{typedef declarator cannot be qualified}}
|
||
|
|
struct A {
|
||
|
|
struct B;
|
||
|
|
struct A::B {};
|
||
|
|
// expected-error@-1 {{extra qualification on member 'B'}}
|
||
|
|
|
||
|
|
#if __cplusplus >= 201103L
|
||
|
|
enum class C;
|
||
|
|
enum class A::C {};
|
||
|
|
// expected-error@-1 {{extra qualification on member 'C'}}
|
||
|
|
#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];
|
||
|
|
// cxx98-error@-1 {{'long long' is a C++11 extension}}
|
||
|
|
// cxx98-error@-2 0-1{{'long long' is a C++11 extension}}
|
||
|
|
}
|
||
|
|
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; // #dr484-typedef-CT
|
||
|
|
struct CT {};
|
||
|
|
// expected-error@-1 {{definition of type 'CT' conflicts with typedef of the same name}}
|
||
|
|
// expected-note@#dr484-typedef-CT {{'CT' declared here}}
|
||
|
|
|
||
|
|
namespace N {
|
||
|
|
struct D;
|
||
|
|
typedef D DT; // #dr484-typedef-DT
|
||
|
|
}
|
||
|
|
struct N::DT {};
|
||
|
|
// expected-error@-1 {{definition of type 'DT' conflicts with typedef of the same name}}
|
||
|
|
// expected-note@#dr484-typedef-DT {{'DT' declared here}}
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
S();
|
||
|
|
// expected-error@-1 {{a type specifier is required for all declarations}}
|
||
|
|
} 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 *); // #dr486-f
|
||
|
|
int &f(...);
|
||
|
|
|
||
|
|
void g();
|
||
|
|
int n[10];
|
||
|
|
|
||
|
|
void h() {
|
||
|
|
int &a = f(&g);
|
||
|
|
int &b = f(&n);
|
||
|
|
f<void()>(&g);
|
||
|
|
// expected-error@-1 {{no matching function for call to 'f'}}
|
||
|
|
// expected-note@#dr486-f {{candidate template ignored: substitution failure [with T = void ()]: function cannot return function type 'void ()'}}
|
||
|
|
f<int[10]>(&n);
|
||
|
|
// expected-error@-1 {{no matching function for call to 'f'}}
|
||
|
|
// expected-note@#dr486-f {{candidate template ignored: substitution failure [with T = int[10]]: function cannot return array type 'int[10]'}}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr487 { // dr487: yes
|
||
|
|
enum E { e };
|
||
|
|
int operator+(int, E); // #dr487-operator-plus
|
||
|
|
int i[4 + e]; // #dr487-i
|
||
|
|
// expected-error@-1 {{variable length arrays in C++ are a Clang extension}}
|
||
|
|
// since-cxx11-note@-2 {{non-constexpr function 'operator+' cannot be used in a constant expression}}
|
||
|
|
// since-cxx11-note@#dr487-operator-plus {{declared here}}
|
||
|
|
// expected-error@#dr487-i {{variable length array declaration not allowed at file scope}}
|
||
|
|
}
|
||
|
|
|
||
|
|
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);
|
||
|
|
// cxx98-error@-1 {{template argument uses local type 'E'}}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// dr489: na
|
||
|
|
|
||
|
|
namespace dr490 { // dr490: 2.8
|
||
|
|
template<typename T> struct X {};
|
||
|
|
|
||
|
|
struct A {
|
||
|
|
typedef int T;
|
||
|
|
struct K {}; // #dr490-k
|
||
|
|
|
||
|
|
int f(T);
|
||
|
|
int g(T);
|
||
|
|
int h(X<T>);
|
||
|
|
int X<T>::*i(); // #dr490-i
|
||
|
|
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@-1 {{return type of out-of-line definition of 'dr490::A::i' differs from that in the declaration}}
|
||
|
|
// expected-note@#dr490-i {{previous declaration is here}}
|
||
|
|
friend int K::*A::j();
|
||
|
|
// expected-error@-1 {{use of undeclared identifier 'K'; did you mean 'A::K'?}}
|
||
|
|
// expected-note@#dr490-k {{'A::K' declared here}}
|
||
|
|
|
||
|
|
// 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@-1 {{excess elements in array initializer}}
|
||
|
|
}
|
||
|
|
|
||
|
|
// 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: sup 2094
|
||
|
|
struct A { int n; };
|
||
|
|
struct B { volatile int n; };
|
||
|
|
int check1[ __is_trivially_copyable(const int) ? 1 : -1];
|
||
|
|
// This checks the dr2094 behavior, not dr496
|
||
|
|
int check2[ __is_trivially_copyable(volatile int) ? 1 : -1];
|
||
|
|
int check3[ __is_trivially_constructible(A, const A&) ? 1 : -1];
|
||
|
|
int check4[ __is_trivially_constructible(B, const B&) ? 1 : -1];
|
||
|
|
int check5[ __is_trivially_assignable(A, const A&) ? 1 : -1];
|
||
|
|
int check6[ __is_trivially_assignable(B, const B&) ? 1 : -1];
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr497 { // dr497: sup 253
|
||
|
|
void before() {
|
||
|
|
struct S {
|
||
|
|
mutable int i;
|
||
|
|
};
|
||
|
|
const S cs;
|
||
|
|
int S::*pm = &S::i;
|
||
|
|
cs.*pm = 88;
|
||
|
|
// expected-error@-1 {{read-only variable is 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@-1 {{read-only variable is not assignable}}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr499 { // dr499: yes
|
||
|
|
extern char str[];
|
||
|
|
void f() { throw str; }
|
||
|
|
}
|