// RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
extern "C" { void f(bool); }
namespace std {
using ::f;
inline void f() { return f(true); }
}
namespace M {
void f(float);
}
namespace N {
using M::f;
void f(int) { } // expected-note{{previous}}
void f(int) { } // expected-error{{redefinition}}
}
namespace N {
void f(double);
void f(long);
}
struct X0 {
void operator()(int);
void operator()(long);
};
struct X1 : X0 {
void operator()(float&);
using X0::operator();
void test() {
(*this)(1);
}
};
struct A { void f(); };
struct B : A { };
class C : B { using B::f; };
// PR5751: Resolve overloaded functions through using decls.
namespace O {
void f(int i);
void f(double d);
}
namespace P {
void f();
void g(void (*ptr)(int));
using O::f;
void test() {
f();
f(1);
void (*f_ptr1)(double) = f;
void (*f_ptr2)() = f;
g(f);
}
}
// Make sure that ADL can find names brought in by using decls.
namespace test0 {
namespace ns {
class Foo {};
namespace inner {
void foo(char *); // expected-note {{no known conversion}}
}
using inner::foo;
}
void test(ns::Foo *p) {
foo(*p); // expected-error {{no matching function for call to 'foo'}}
}
}
// Redeclarations!
namespace test1 {
namespace ns0 { struct Foo {}; }
namespace A { void foo(ns0::Foo *p, int y, int z); }
namespace ns2 { using A::foo; }
namespace ns1 { struct Bar : ns0::Foo {}; }
namespace A { void foo(ns0::Foo *p, int y, int z = 0); } // expected-note {{candidate}}
namespace ns1 { using A::foo; }
namespace ns2 { struct Baz : ns1::Bar {}; }
namespace A { void foo(ns0::Foo *p, int y = 0, int z); }
void test(ns2::Baz *p) {
foo(p, 0, 0); // okay!
foo(p, 0); // should be fine!
foo(p); // expected-error {{no matching function}}
}
}
namespace test2 {
namespace ns { int foo; }
template <class T> using ns::foo; // expected-error {{cannot template a using declaration}}
// PR8022
struct A {
template <typename T> void f(T);
};
class B : A {
template <typename T> using A::f<T>; // expected-error {{cannot template a using declaration}}
};
}
// PR8756
namespace foo
{
class Class1; // expected-note{{forward declaration}}
class Class2
{
using ::foo::Class1::Function; // expected-error{{incomplete type 'foo::Class1' named in nested name specifier}}
};
}
// Don't suggest non-typenames for positions requiring typenames.
namespace using_suggestion_tyname_val {
namespace N { void FFF() {} }
using typename N::FFG; // expected-error {{no member named 'FFG' in namespace 'using_suggestion_tyname_val::N'}}
}
namespace using_suggestion_member_tyname_val {
class CCC { public: void AAA() { } };
class DDD : public CCC { public: using typename CCC::AAB; }; // expected-error {{no member named 'AAB' in 'using_suggestion_member_tyname_val::CCC'}}
}
namespace using_suggestion_tyname_val_dropped_specifier {
void FFF() {}
namespace N { }
using typename N::FFG; // expected-error {{no member named 'FFG' in namespace 'using_suggestion_tyname_val_dropped_specifier::N'}}
}
// Currently hints aren't provided to drop out the incorrect M::.
namespace using_suggestion_ty_dropped_nested_specifier {
namespace N {
class AAA {}; // expected-note {{'N::AAA' declared here}}
namespace M { }
}
using N::M::AAA; // expected-error {{no member named 'AAA' in namespace 'using_suggestion_ty_dropped_nested_specifier::N::M'; did you mean 'N::AAA'?}}
}
namespace using_suggestion_tyname_ty_dropped_nested_specifier {
namespace N {
class AAA {}; // expected-note {{'N::AAA' declared here}}
namespace M { }
}
using typename N::M::AAA; // expected-error {{no member named 'AAA' in namespace 'using_suggestion_tyname_ty_dropped_nested_specifier::N::M'; did you mean 'N::AAA'?}}
}
namespace using_suggestion_val_dropped_nested_specifier {
namespace N {
void FFF() {} // expected-note {{'N::FFF' declared here}}
namespace M { }
}
using N::M::FFF; // expected-error {{no member named 'FFF' in namespace 'using_suggestion_val_dropped_nested_specifier::N::M'; did you mean 'N::FFF'?}}
}
namespace UsingDeclVsHiddenName {
namespace A {
enum HiddenTag1 {}; // expected-note {{previous use is here}}
enum HiddenTag2 {}; // expected-note {{target}}
int HiddenFn1; // expected-note {{target}}
int HiddenFn2; // expected-note {{target}}
int HiddenLocalExtern1;
int HiddenLocalExtern2;
}
namespace B {
using A::HiddenTag1;
using A::HiddenFn1; // expected-note {{using declaration}}
using A::HiddenLocalExtern1;
struct S {
friend struct HiddenTag1; // expected-error {{tag type that does not match previous}}
friend struct HiddenTag2; // expected-note {{conflicting declaration}}
friend void HiddenFn1(); // expected-error {{cannot befriend target of using declaration}}
friend void HiddenFn2(); // expected-note {{conflicting declaration}}
void f() {
// OK, these are not in the scope of namespace B, even though they're
// members of the namespace.
void HiddenLocalExtern1();
void HiddenLocalExtern2();
}
};
using A::HiddenTag2; // expected-error {{conflicts with declaration already in scope}}
using A::HiddenFn2; // expected-error {{conflicts with declaration already in scope}}
using A::HiddenLocalExtern2;
}
}
namespace PR19171 {
struct Z {
Z();
};
typedef struct {
Z i;
} S;
struct Y : S {
using S::S;
#if __cplusplus < 201103L
// expected-error@-2 {{no member named 'S' in 'PR19171::S'}}
#endif
};
// [namespace.udecl]p3: In a using-declaration used as a member-declaration,
// the nested-name-specifier shall name a base class of the class being defined.
// If such a using-declaration names a constructor, the nested-name-specifier
// shall name a direct base class of the class being defined;
struct B_blah { };
struct C_blah : B_blah { C_blah(int); }; // expected-note 0-1{{declared here}}
struct D1 : C_blah {
// FIXME: We should be able to correct this in C++11 mode.
using B_blah::C_blah; // expected-error-re {{no member named 'C_blah' in 'PR19171::B_blah'{{$}}}}
};
struct D2 : C_blah {
// Somewhat bizarrely, this names the injected-class-name of B_blah within
// C_blah, and is valid.
using C_blah::B_blah;
};
struct D3 : C_blah {
using C_blah::D_blah;
#if __cplusplus < 201103L
// expected-error-re@-2 {{no member named 'D_blah' in 'PR19171::C_blah'{{$}}}}
#else
// expected-error@-4 {{no member named 'D_blah' in 'PR19171::C_blah'; did you mean 'C_blah'?}}
#endif
};
#if __cplusplus >= 201103L
D3 d3(0); // ok
#endif
struct E { };
struct EE { int EE; };
struct F : E {
using E::EE; // expected-error-re {{no member named 'EE' in 'PR19171::E'{{$}}}}
};
struct TypoDuplicate { // expected-note 0-4{{here}}
TypoDuplicate(int);
void foobar(); // expected-note 2{{here}}
};
struct TypoDuplicateDerived1 : TypoDuplicate {
#if __cplusplus >= 201103L
using TypoDuplicate::TypoFuplicate; // expected-error {{did you mean 'TypoDuplicate'}} expected-note {{previous}}
using TypoDuplicate::TypoDuplicate; // expected-error {{redeclaration}}
#endif
using TypoDuplicate::goobar; // expected-error {{did you mean 'foobar'}} expected-note {{previous}}
using TypoDuplicate::foobar; // expected-error {{redeclaration}}
};
struct TypoDuplicateDerived2 : TypoDuplicate {
#if __cplusplus >= 201103L
using TypoFuplicate::TypoDuplicate; // expected-error {{did you mean 'TypoDuplicate'}} expected-note {{previous}}
using TypoDuplicate::TypoDuplicate; // expected-error {{redeclaration}}
#endif
};
struct TypoDuplicateDerived3 : TypoDuplicate {
#if __cplusplus >= 201103L
// FIXME: Don't suggest a correction that would lead to a redeclaration
// error here... or at least diagnose the error.
using TypoDuplicate::TypoDuplicate;
using TypoDuplicate::TypoFuplicate; // expected-error {{did you mean 'TypoDuplicate'}}
#endif
using TypoDuplicate::foobar;
using TypoDuplicate::goobar; // expected-error {{did you mean 'foobar'}}
};
struct TypoDuplicateDerived4 : TypoDuplicate {
#if __cplusplus >= 201103L
using TypoDuplicate::TypoDuplicate; // expected-note {{previous}}
using TypoFuplicate::TypoDuplicate; // expected-error {{did you mean 'TypoDuplicate'}} expected-error {{redeclaration}}
#endif
};
}
namespace TypoCorrectTemplateMember {
struct A {
template<typename T> void foobar(T); // expected-note {{'foobar' declared here}}
};
struct B : A {
using A::goobar; // expected-error {{no member named 'goobar' in 'TypoCorrectTemplateMember::A'; did you mean 'foobar'?}}
};
}
namespace use_instance_in_static {
struct A { int n; };
struct B : A {
using A::n;
static int f() { return n; } // expected-error {{invalid use of member 'n' in static member function}}
};
}
namespace PR24030 {
namespace X {
class A; // expected-note {{target}}
int i; // expected-note {{target}}
}
namespace Y {
using X::A; // expected-note {{using}}
using X::i; // expected-note {{using}}
class A {}; // expected-error {{conflicts}}
int i; // expected-error {{conflicts}}
}
}
namespace PR24033 {
extern int a; // expected-note 2{{target of using declaration}}
void f(); // expected-note 2{{target of using declaration}}
struct s; // expected-note 2{{target of using declaration}}
enum e {}; // expected-note 2{{target of using declaration}}
template<typename> extern int vt; // expected-note 2{{target of using declaration}} expected-warning 0-1{{extension}}
template<typename> void ft(); // expected-note 2{{target of using declaration}}
template<typename> struct st; // expected-note 2{{target of using declaration}}
namespace X {
using PR24033::a; // expected-note {{using declaration}}
using PR24033::f; // expected-note {{using declaration}}
using PR24033::s; // expected-note {{using declaration}}
using PR24033::e; // expected-note {{using declaration}}
using PR24033::vt; // expected-note {{using declaration}}
using PR24033::ft; // expected-note {{using declaration}}
using PR24033::st; // expected-note {{using declaration}}
extern int a; // expected-error {{declaration conflicts with target of using declaration already in scope}}
void f(); // expected-error {{declaration conflicts with target of using declaration already in scope}}
struct s; // expected-error {{declaration conflicts with target of using declaration already in scope}}
enum e {}; // expected-error {{declaration conflicts with target of using declaration already in scope}}
template<typename> extern int vt; // expected-error {{declaration conflicts with target of using declaration already in scope}} expected-warning 0-1{{extension}}
template<typename> void ft(); // expected-error {{declaration conflicts with target of using declaration already in scope}}
template<typename> struct st; // expected-error {{declaration conflicts with target of using declaration already in scope}}
}
namespace Y {
extern int a; // expected-note {{conflicting declaration}}
void f(); // expected-note {{conflicting declaration}}
struct s; // expected-note {{conflicting declaration}}
enum e {}; // expected-note {{conflicting declaration}}
template<typename> extern int vt; // expected-note {{conflicting declaration}} expected-warning 0-1{{extension}}
template<typename> void ft(); // expected-note {{conflicting declaration}}
template<typename> struct st; // expected-note {{conflicting declaration}}
using PR24033::a; // expected-error {{target of using declaration conflicts with declaration already in scope}}
using PR24033::f; // expected-error {{target of using declaration conflicts with declaration already in scope}}
using PR24033::s; // expected-error {{target of using declaration conflicts with declaration already in scope}}
using PR24033::e; // expected-error {{target of using declaration conflicts with declaration already in scope}}
using PR24033::vt; // expected-error {{target of using declaration conflicts with declaration already in scope}}
using PR24033::ft; // expected-error {{target of using declaration conflicts with declaration already in scope}}
using PR24033::st; // expected-error {{target of using declaration conflicts with declaration already in scope}}
}
}
namespace field_use {
struct A { int field; };
struct B : A {
// Previously Clang rejected this valid C++11 code because it didn't look
// through the UsingShadowDecl.
using A::field;
#if __cplusplus < 201103L
// expected-error@+2 {{invalid use of non-static data member 'field'}}
#endif
enum { X = sizeof(field) };
};
}
namespace tag_vs_var {
namespace N {
struct X {};
struct Y {};
int Y;
int Z;
}
using N::X;
using N::Y;
using N::Z;
namespace N {
int X;
struct Z {};
}
using N::X;
using N::Y;
using N::Z;
}
// expected-error@+5 {{requires a qualified name}}
// expected-error@+4 {{expected ';'}}
// expected-error@+3 {{expected '}'}}
// expected-note@+2 {{to match this '{'}}
// expected-error@+1 {{expected ';'}}
template<class> struct S { using S
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