head 1.1; branch 1.1.1; access; symbols netbsd-11-0-RC4:1.1.1.4 netbsd-11-0-RC3:1.1.1.4 netbsd-11-0-RC2:1.1.1.4 netbsd-11-0-RC1:1.1.1.4 perseant-exfatfs-base-20250801:1.1.1.4 netbsd-11:1.1.1.4.0.10 netbsd-11-base:1.1.1.4 netbsd-10-1-RELEASE:1.1.1.4 perseant-exfatfs-base-20240630:1.1.1.4 perseant-exfatfs:1.1.1.4.0.8 perseant-exfatfs-base:1.1.1.4 netbsd-8-3-RELEASE:1.1.1.3 netbsd-9-4-RELEASE:1.1.1.3 netbsd-10-0-RELEASE:1.1.1.4 netbsd-10-0-RC6:1.1.1.4 netbsd-10-0-RC5:1.1.1.4 netbsd-10-0-RC4:1.1.1.4 netbsd-10-0-RC3:1.1.1.4 netbsd-10-0-RC2:1.1.1.4 netbsd-10-0-RC1:1.1.1.4 netbsd-10:1.1.1.4.0.6 netbsd-10-base:1.1.1.4 netbsd-9-3-RELEASE:1.1.1.3 cjep_sun2x:1.1.1.4.0.4 cjep_sun2x-base:1.1.1.4 cjep_staticlib_x-base1:1.1.1.4 netbsd-9-2-RELEASE:1.1.1.3 cjep_staticlib_x:1.1.1.4.0.2 cjep_staticlib_x-base:1.1.1.4 netbsd-9-1-RELEASE:1.1.1.3 phil-wifi-20200421:1.1.1.4 phil-wifi-20200411:1.1.1.4 phil-wifi-20200406:1.1.1.4 netbsd-8-2-RELEASE:1.1.1.3 netbsd-9-0-RELEASE:1.1.1.3 netbsd-9-0-RC2:1.1.1.3 netbsd-9-0-RC1:1.1.1.3 netbsd-9:1.1.1.3.0.16 netbsd-9-base:1.1.1.3 phil-wifi-20190609:1.1.1.3 netbsd-8-1-RELEASE:1.1.1.3 netbsd-8-1-RC1:1.1.1.3 pgoyette-compat-merge-20190127:1.1.1.3 pgoyette-compat-20190127:1.1.1.3 pgoyette-compat-20190118:1.1.1.3 pgoyette-compat-1226:1.1.1.3 pgoyette-compat-1126:1.1.1.3 pgoyette-compat-1020:1.1.1.3 pgoyette-compat-0930:1.1.1.3 pgoyette-compat-0906:1.1.1.3 netbsd-7-2-RELEASE:1.1.1.1 pgoyette-compat-0728:1.1.1.3 clang-337282:1.1.1.3 netbsd-8-0-RELEASE:1.1.1.3 phil-wifi:1.1.1.3.0.14 phil-wifi-base:1.1.1.3 pgoyette-compat-0625:1.1.1.3 netbsd-8-0-RC2:1.1.1.3 pgoyette-compat-0521:1.1.1.3 pgoyette-compat-0502:1.1.1.3 pgoyette-compat-0422:1.1.1.3 netbsd-8-0-RC1:1.1.1.3 pgoyette-compat-0415:1.1.1.3 pgoyette-compat-0407:1.1.1.3 pgoyette-compat-0330:1.1.1.3 pgoyette-compat-0322:1.1.1.3 pgoyette-compat-0315:1.1.1.3 netbsd-7-1-2-RELEASE:1.1.1.1 pgoyette-compat:1.1.1.3.0.12 pgoyette-compat-base:1.1.1.3 netbsd-7-1-1-RELEASE:1.1.1.1 clang-319952:1.1.1.3 matt-nb8-mediatek:1.1.1.3.0.10 matt-nb8-mediatek-base:1.1.1.3 clang-309604:1.1.1.3 perseant-stdc-iso10646:1.1.1.3.0.8 perseant-stdc-iso10646-base:1.1.1.3 netbsd-8:1.1.1.3.0.6 netbsd-8-base:1.1.1.3 prg-localcount2-base3:1.1.1.3 prg-localcount2-base2:1.1.1.3 prg-localcount2-base1:1.1.1.3 prg-localcount2:1.1.1.3.0.4 prg-localcount2-base:1.1.1.3 pgoyette-localcount-20170426:1.1.1.3 bouyer-socketcan-base1:1.1.1.3 pgoyette-localcount-20170320:1.1.1.3 netbsd-7-1:1.1.1.1.0.14 netbsd-7-1-RELEASE:1.1.1.1 netbsd-7-1-RC2:1.1.1.1 clang-294123:1.1.1.3 netbsd-7-nhusb-base-20170116:1.1.1.1 bouyer-socketcan:1.1.1.3.0.2 bouyer-socketcan-base:1.1.1.3 clang-291444:1.1.1.3 pgoyette-localcount-20170107:1.1.1.2 netbsd-7-1-RC1:1.1.1.1 pgoyette-localcount-20161104:1.1.1.2 netbsd-7-0-2-RELEASE:1.1.1.1 localcount-20160914:1.1.1.2 netbsd-7-nhusb:1.1.1.1.0.12 netbsd-7-nhusb-base:1.1.1.1 clang-280599:1.1.1.2 pgoyette-localcount-20160806:1.1.1.2 pgoyette-localcount-20160726:1.1.1.2 pgoyette-localcount:1.1.1.2.0.2 pgoyette-localcount-base:1.1.1.2 netbsd-7-0-1-RELEASE:1.1.1.1 clang-261930:1.1.1.2 netbsd-7-0:1.1.1.1.0.10 netbsd-7-0-RELEASE:1.1.1.1 netbsd-7-0-RC3:1.1.1.1 netbsd-7-0-RC2:1.1.1.1 netbsd-7-0-RC1:1.1.1.1 clang-237755:1.1.1.1 clang-232565:1.1.1.1 clang-227398:1.1.1.1 tls-maxphys-base:1.1.1.1 tls-maxphys:1.1.1.1.0.8 netbsd-7:1.1.1.1.0.6 netbsd-7-base:1.1.1.1 clang-215315:1.1.1.1 clang-209886:1.1.1.1 yamt-pagecache:1.1.1.1.0.4 yamt-pagecache-base9:1.1.1.1 tls-earlyentropy:1.1.1.1.0.2 tls-earlyentropy-base:1.1.1.1 riastradh-xf86-video-intel-2-7-1-pre-2-21-15:1.1.1.1 riastradh-drm2-base3:1.1.1.1 clang-202566:1.1.1.1 clang-201163:1.1.1.1 clang-199312:1.1.1.1 clang-198450:1.1.1.1 clang-196603:1.1.1.1 clang-195771:1.1.1.1 LLVM:1.1.1; locks; strict; comment @// @; 1.1 date 2013.11.28.14.14.55; author joerg; state Exp; branches 1.1.1.1; next ; commitid ow8OybrawrB1f3fx; 1.1.1.1 date 2013.11.28.14.14.55; author joerg; state Exp; branches 1.1.1.1.4.1 1.1.1.1.8.1; next 1.1.1.2; commitid ow8OybrawrB1f3fx; 1.1.1.2 date 2016.02.27.22.09.11; author joerg; state Exp; branches 1.1.1.2.2.1; next 1.1.1.3; commitid tIimz3oDlh1NpBWy; 1.1.1.3 date 2017.01.11.10.37.40; author joerg; state Exp; branches 1.1.1.3.14.1; next 1.1.1.4; commitid CNnUNfII1jgNmxBz; 1.1.1.4 date 2019.11.13.22.19.46; author joerg; state dead; branches; next ; commitid QD8YATxuNG34YJKB; 1.1.1.1.4.1 date 2013.11.28.14.14.55; author yamt; state dead; branches; next 1.1.1.1.4.2; commitid WSrDtL5nYAUyiyBx; 1.1.1.1.4.2 date 2014.05.22.16.18.39; author yamt; state Exp; branches; next ; commitid WSrDtL5nYAUyiyBx; 1.1.1.1.8.1 date 2013.11.28.14.14.55; author tls; state dead; branches; next 1.1.1.1.8.2; commitid jTnpym9Qu0o4R1Nx; 1.1.1.1.8.2 date 2014.08.19.23.47.39; author tls; state Exp; branches; next ; commitid jTnpym9Qu0o4R1Nx; 1.1.1.2.2.1 date 2017.03.20.06.52.50; author pgoyette; state Exp; branches; next ; commitid jjw7cAwgyKq7RfKz; 1.1.1.3.14.1 date 2020.04.13.07.46.59; author martin; state dead; branches; next ; commitid X01YhRUPVUDaec4C; desc @@ 1.1 log @Initial revision @ text @// RUN: %clang_cc1 -fsyntax-only -verify %s // C++'0x [class.friend] p1: // A friend of a class is a function or class that is given permission to use // the private and protected member names from the class. A class specifies // its friends, if any, by way of friend declarations. Such declarations give // special access rights to the friends, but they do not make the nominated // friends members of the befriending class. struct S { static void f(); }; // expected-note 2 {{'S' declared here}} S* g() { return 0; } // expected-note 2 {{'g' declared here}} struct X { friend struct S; friend S* g(); }; void test1() { S s; g()->f(); S::f(); X::g(); // expected-error{{no member named 'g' in 'X'; did you mean simply 'g'?}} X::S x_s; // expected-error{{no type named 'S' in 'X'; did you mean simply 'S'?}} X x; x.g(); // expected-error{{no member named 'g' in 'X'}} } // Test that we recurse through namespaces to find already declared names, but // new names are declared within the enclosing namespace. namespace N { struct X { friend struct S; friend S* g(); friend struct S2; friend struct S2* g2(); }; struct S2 { static void f2(); }; // expected-note 2 {{'S2' declared here}} S2* g2() { return 0; } // expected-note 2 {{'g2' declared here}} void test() { g()->f(); S s; S::f(); X::g(); // expected-error{{no member named 'g' in 'N::X'; did you mean simply 'g'?}} X::S x_s; // expected-error{{no type named 'S' in 'N::X'; did you mean simply 'S'?}} X x; x.g(); // expected-error{{no member named 'g' in 'N::X'}} g2(); S2 s2; ::g2(); // expected-error{{no member named 'g2' in the global namespace; did you mean simply 'g2'?}} ::S2 g_s2; // expected-error{{no type named 'S2' in the global namespace; did you mean simply 'S2'?}} X::g2(); // expected-error{{no member named 'g2' in 'N::X'; did you mean simply 'g2'?}} X::S2 x_s2; // expected-error{{no type named 'S2' in 'N::X'; did you mean simply 'S2'?}} x.g2(); // expected-error{{no member named 'g2' in 'N::X'}} } } namespace test0 { class ClassFriend { void test(); }; class MemberFriend { public: void test(); }; void declared_test(); class Class { static void member(); // expected-note 2 {{declared private here}} friend class ClassFriend; friend class UndeclaredClassFriend; friend void undeclared_test(); friend void declared_test(); friend void MemberFriend::test(); }; void declared_test() { Class::member(); } void undeclared_test() { Class::member(); } void unfriended_test() { Class::member(); // expected-error {{'member' is a private member of 'test0::Class'}} } void ClassFriend::test() { Class::member(); } void MemberFriend::test() { Class::member(); } class UndeclaredClassFriend { void test() { Class::member(); } }; class ClassNonFriend { void test() { Class::member(); // expected-error {{'member' is a private member of 'test0::Class'}} } }; } // Make sure that friends have access to inherited protected members. namespace test2 { struct X; class ilist_half_node { friend struct ilist_walker_bad; X *Prev; protected: X *getPrev() { return Prev; } // expected-note{{member is declared here}} }; class ilist_node : private ilist_half_node { // expected-note {{declared private here}} expected-note {{constrained by private inheritance here}} friend struct ilist_walker; X *Next; X *getNext() { return Next; } // expected-note {{declared private here}} }; struct X : ilist_node {}; struct ilist_walker { static X *getPrev(X *N) { return N->getPrev(); } static X *getNext(X *N) { return N->getNext(); } }; struct ilist_walker_bad { static X *getPrev(X *N) { return N->getPrev(); } // \ // expected-error {{'getPrev' is a private member of 'test2::ilist_half_node'}} \ // expected-error {{cannot cast 'test2::X' to its private base class 'test2::ilist_half_node'}} static X *getNext(X *N) { return N->getNext(); } // \ // expected-error {{'getNext' is a private member of 'test2::ilist_node'}} }; } namespace test3 { class A { protected: int x; }; // expected-note {{declared protected here}} class B : public A { friend int foo(B*); }; int foo(B *p) { return p->x; } int foo(const B *p) { return p->x; // expected-error {{'x' is a protected member of 'test3::A'}} } } namespace test3a { class A { protected: int x; }; class B : public A { friend int foo(B*); }; int foo(B * const p) { return p->x; } } namespace test4 { template class Holder { T object; friend bool operator==(Holder &a, Holder &b) { return a.object == b.object; // expected-error {{invalid operands to binary expression}} } }; struct Inequal {}; bool test() { Holder a, b; return a == b; // expected-note {{requested here}} } } // PR6174 namespace test5 { namespace ns { class A; } class ns::A { private: int x; friend class B; }; namespace ns { class B { int test(A *p) { return p->x; } }; } } // PR6207 namespace test6 { struct A {}; struct B { friend A::A(); friend A::~A(); friend A &A::operator=(const A&); }; } namespace test7 { template struct X { X(); ~X(); void foo(); void bar(); }; class A { friend void X::foo(); friend X::X(); friend X::X(const X&); private: A(); // expected-note 2 {{declared private here}} }; template<> void X::foo() { A a; } template<> void X::bar() { A a; // expected-error {{calling a private constructor}} } template<> X::X() { A a; } template<> X::~X() { A a; // expected-error {{calling a private constructor}} } } // Return types, parameters and default arguments to friend functions. namespace test8 { class A { typedef int I; // expected-note 4 {{declared private here}} static const I x = 0; // expected-note {{implicitly declared private here}} friend I f(I i); template friend I g(I i); }; const A::I A::x; A::I f(A::I i = A::x) {} template A::I g(A::I i) { T t; } template A::I g(A::I i); A::I f2(A::I i = A::x) {} // expected-error 3 {{is a private member of}} template A::I g2(A::I i) { // expected-error 2 {{is a private member of}} T t; } template A::I g2(A::I i); } // PR6885 namespace test9 { class B { friend class test9; }; } // PR7230 namespace test10 { extern "C" void test10_f(void); extern "C" void test10_g(void); namespace NS { class C { void foo(void); // expected-note {{declared private here}} friend void test10::test10_f(void); }; static C* bar; } void test10_f(void) { NS::bar->foo(); } void test10_g(void) { NS::bar->foo(); // expected-error {{private member}} } } // PR8705 namespace test11 { class A { public: void test0(int); void test1(int); void test2(int); void test3(int); }; class B { typedef int private_type; // expected-note 2 {{implicitly declared private here}} friend void A::test0(int); friend void A::test1(int); }; void A::test0(B::private_type x) {} void A::test1(int x = B::private_type()) {} void A::test2(B::private_type x) {} // expected-error {{'private_type' is a private member of 'test11::B'}} void A::test3(int x = B::private_type()) {} // expected-error {{'private_type' is a private member of 'test11::B'}} } // PR9221 namespace test12 { struct A { void foo(); }; class B : private A { friend void A::foo(); void *mem; }; void A::foo() { void *var = static_cast(this)->mem; } } namespace PR9103 { struct base { protected: static void foo(void) {} }; struct cls: base { friend void bar(void) { base::foo(); } }; } // PR13642. When computing the effective context, we were walking up // the DC chain for the canonical decl, which is unfortunate if that's // (e.g.) a friend declaration. namespace test14 { class A { class B { // expected-note {{implicitly declared private here}} static int i; friend void c(); }; }; void c() { A::B::i = 5; // expected-error {{'B' is a private member of 'test14::A'}} } } @ 1.1.1.1 log @Import Clang 3.4rc1 r195771. @ text @@ 1.1.1.2 log @Import Clang 3.8.0rc3 r261930. @ text @d11 1 a11 1 S* g() { return 0; } d15 1 a15 2 friend S* g(); // expected-note 2 {{'g' declared here}} // FIXME: The above two notes would be better attached to line 11. @ 1.1.1.2.2.1 log @Sync with HEAD @ text @a0 3 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s // RUN: %clang_cc1 -fsyntax-only -verify -std=c++14 %s d219 1 a219 5 friend #if __cplusplus >= 201103L constexpr #endif A::A(); d221 1 a221 5 friend #if __cplusplus >= 201402L constexpr #endif A &A::operator=(const A&); d236 1 a236 5 friend #if __cplusplus >= 201103L constexpr #endif X::X(const X&); @ 1.1.1.3 log @Import Clang pre-4.0.0 r291444. @ text @a0 3 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s // RUN: %clang_cc1 -fsyntax-only -verify -std=c++14 %s d219 1 a219 5 friend #if __cplusplus >= 201103L constexpr #endif A::A(); d221 1 a221 5 friend #if __cplusplus >= 201402L constexpr #endif A &A::operator=(const A&); d236 1 a236 5 friend #if __cplusplus >= 201103L constexpr #endif X::X(const X&); @ 1.1.1.3.14.1 log @Mostly merge changes from HEAD upto 20200411 @ text @@ 1.1.1.4 log @Mark old LLVM instance as dead. @ text @@ 1.1.1.1.8.1 log @file p1.cpp was added on branch tls-maxphys on 2014-08-19 23:47:39 +0000 @ text @d1 374 @ 1.1.1.1.8.2 log @Rebase to HEAD as of a few days ago. @ text @a0 374 // RUN: %clang_cc1 -fsyntax-only -verify %s // C++'0x [class.friend] p1: // A friend of a class is a function or class that is given permission to use // the private and protected member names from the class. A class specifies // its friends, if any, by way of friend declarations. Such declarations give // special access rights to the friends, but they do not make the nominated // friends members of the befriending class. struct S { static void f(); }; // expected-note 2 {{'S' declared here}} S* g() { return 0; } // expected-note 2 {{'g' declared here}} struct X { friend struct S; friend S* g(); }; void test1() { S s; g()->f(); S::f(); X::g(); // expected-error{{no member named 'g' in 'X'; did you mean simply 'g'?}} X::S x_s; // expected-error{{no type named 'S' in 'X'; did you mean simply 'S'?}} X x; x.g(); // expected-error{{no member named 'g' in 'X'}} } // Test that we recurse through namespaces to find already declared names, but // new names are declared within the enclosing namespace. namespace N { struct X { friend struct S; friend S* g(); friend struct S2; friend struct S2* g2(); }; struct S2 { static void f2(); }; // expected-note 2 {{'S2' declared here}} S2* g2() { return 0; } // expected-note 2 {{'g2' declared here}} void test() { g()->f(); S s; S::f(); X::g(); // expected-error{{no member named 'g' in 'N::X'; did you mean simply 'g'?}} X::S x_s; // expected-error{{no type named 'S' in 'N::X'; did you mean simply 'S'?}} X x; x.g(); // expected-error{{no member named 'g' in 'N::X'}} g2(); S2 s2; ::g2(); // expected-error{{no member named 'g2' in the global namespace; did you mean simply 'g2'?}} ::S2 g_s2; // expected-error{{no type named 'S2' in the global namespace; did you mean simply 'S2'?}} X::g2(); // expected-error{{no member named 'g2' in 'N::X'; did you mean simply 'g2'?}} X::S2 x_s2; // expected-error{{no type named 'S2' in 'N::X'; did you mean simply 'S2'?}} x.g2(); // expected-error{{no member named 'g2' in 'N::X'}} } } namespace test0 { class ClassFriend { void test(); }; class MemberFriend { public: void test(); }; void declared_test(); class Class { static void member(); // expected-note 2 {{declared private here}} friend class ClassFriend; friend class UndeclaredClassFriend; friend void undeclared_test(); friend void declared_test(); friend void MemberFriend::test(); }; void declared_test() { Class::member(); } void undeclared_test() { Class::member(); } void unfriended_test() { Class::member(); // expected-error {{'member' is a private member of 'test0::Class'}} } void ClassFriend::test() { Class::member(); } void MemberFriend::test() { Class::member(); } class UndeclaredClassFriend { void test() { Class::member(); } }; class ClassNonFriend { void test() { Class::member(); // expected-error {{'member' is a private member of 'test0::Class'}} } }; } // Make sure that friends have access to inherited protected members. namespace test2 { struct X; class ilist_half_node { friend struct ilist_walker_bad; X *Prev; protected: X *getPrev() { return Prev; } // expected-note{{member is declared here}} }; class ilist_node : private ilist_half_node { // expected-note {{declared private here}} expected-note {{constrained by private inheritance here}} friend struct ilist_walker; X *Next; X *getNext() { return Next; } // expected-note {{declared private here}} }; struct X : ilist_node {}; struct ilist_walker { static X *getPrev(X *N) { return N->getPrev(); } static X *getNext(X *N) { return N->getNext(); } }; struct ilist_walker_bad { static X *getPrev(X *N) { return N->getPrev(); } // \ // expected-error {{'getPrev' is a private member of 'test2::ilist_half_node'}} \ // expected-error {{cannot cast 'test2::X' to its private base class 'test2::ilist_half_node'}} static X *getNext(X *N) { return N->getNext(); } // \ // expected-error {{'getNext' is a private member of 'test2::ilist_node'}} }; } namespace test3 { class A { protected: int x; }; // expected-note {{declared protected here}} class B : public A { friend int foo(B*); }; int foo(B *p) { return p->x; } int foo(const B *p) { return p->x; // expected-error {{'x' is a protected member of 'test3::A'}} } } namespace test3a { class A { protected: int x; }; class B : public A { friend int foo(B*); }; int foo(B * const p) { return p->x; } } namespace test4 { template class Holder { T object; friend bool operator==(Holder &a, Holder &b) { return a.object == b.object; // expected-error {{invalid operands to binary expression}} } }; struct Inequal {}; bool test() { Holder a, b; return a == b; // expected-note {{requested here}} } } // PR6174 namespace test5 { namespace ns { class A; } class ns::A { private: int x; friend class B; }; namespace ns { class B { int test(A *p) { return p->x; } }; } } // PR6207 namespace test6 { struct A {}; struct B { friend A::A(); friend A::~A(); friend A &A::operator=(const A&); }; } namespace test7 { template struct X { X(); ~X(); void foo(); void bar(); }; class A { friend void X::foo(); friend X::X(); friend X::X(const X&); private: A(); // expected-note 2 {{declared private here}} }; template<> void X::foo() { A a; } template<> void X::bar() { A a; // expected-error {{calling a private constructor}} } template<> X::X() { A a; } template<> X::~X() { A a; // expected-error {{calling a private constructor}} } } // Return types, parameters and default arguments to friend functions. namespace test8 { class A { typedef int I; // expected-note 4 {{declared private here}} static const I x = 0; // expected-note {{implicitly declared private here}} friend I f(I i); template friend I g(I i); }; const A::I A::x; A::I f(A::I i = A::x) {} template A::I g(A::I i) { T t; } template A::I g(A::I i); A::I f2(A::I i = A::x) {} // expected-error 3 {{is a private member of}} template A::I g2(A::I i) { // expected-error 2 {{is a private member of}} T t; } template A::I g2(A::I i); } // PR6885 namespace test9 { class B { friend class test9; }; } // PR7230 namespace test10 { extern "C" void test10_f(void); extern "C" void test10_g(void); namespace NS { class C { void foo(void); // expected-note {{declared private here}} friend void test10::test10_f(void); }; static C* bar; } void test10_f(void) { NS::bar->foo(); } void test10_g(void) { NS::bar->foo(); // expected-error {{private member}} } } // PR8705 namespace test11 { class A { public: void test0(int); void test1(int); void test2(int); void test3(int); }; class B { typedef int private_type; // expected-note 2 {{implicitly declared private here}} friend void A::test0(int); friend void A::test1(int); }; void A::test0(B::private_type x) {} void A::test1(int x = B::private_type()) {} void A::test2(B::private_type x) {} // expected-error {{'private_type' is a private member of 'test11::B'}} void A::test3(int x = B::private_type()) {} // expected-error {{'private_type' is a private member of 'test11::B'}} } // PR9221 namespace test12 { struct A { void foo(); }; class B : private A { friend void A::foo(); void *mem; }; void A::foo() { void *var = static_cast(this)->mem; } } namespace PR9103 { struct base { protected: static void foo(void) {} }; struct cls: base { friend void bar(void) { base::foo(); } }; } // PR13642. When computing the effective context, we were walking up // the DC chain for the canonical decl, which is unfortunate if that's // (e.g.) a friend declaration. namespace test14 { class A { class B { // expected-note {{implicitly declared private here}} static int i; friend void c(); }; }; void c() { A::B::i = 5; // expected-error {{'B' is a private member of 'test14::A'}} } } @ 1.1.1.1.4.1 log @file p1.cpp was added on branch yamt-pagecache on 2014-05-22 16:18:39 +0000 @ text @d1 374 @ 1.1.1.1.4.2 log @sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments") @ text @a0 374 // RUN: %clang_cc1 -fsyntax-only -verify %s // C++'0x [class.friend] p1: // A friend of a class is a function or class that is given permission to use // the private and protected member names from the class. A class specifies // its friends, if any, by way of friend declarations. Such declarations give // special access rights to the friends, but they do not make the nominated // friends members of the befriending class. struct S { static void f(); }; // expected-note 2 {{'S' declared here}} S* g() { return 0; } // expected-note 2 {{'g' declared here}} struct X { friend struct S; friend S* g(); }; void test1() { S s; g()->f(); S::f(); X::g(); // expected-error{{no member named 'g' in 'X'; did you mean simply 'g'?}} X::S x_s; // expected-error{{no type named 'S' in 'X'; did you mean simply 'S'?}} X x; x.g(); // expected-error{{no member named 'g' in 'X'}} } // Test that we recurse through namespaces to find already declared names, but // new names are declared within the enclosing namespace. namespace N { struct X { friend struct S; friend S* g(); friend struct S2; friend struct S2* g2(); }; struct S2 { static void f2(); }; // expected-note 2 {{'S2' declared here}} S2* g2() { return 0; } // expected-note 2 {{'g2' declared here}} void test() { g()->f(); S s; S::f(); X::g(); // expected-error{{no member named 'g' in 'N::X'; did you mean simply 'g'?}} X::S x_s; // expected-error{{no type named 'S' in 'N::X'; did you mean simply 'S'?}} X x; x.g(); // expected-error{{no member named 'g' in 'N::X'}} g2(); S2 s2; ::g2(); // expected-error{{no member named 'g2' in the global namespace; did you mean simply 'g2'?}} ::S2 g_s2; // expected-error{{no type named 'S2' in the global namespace; did you mean simply 'S2'?}} X::g2(); // expected-error{{no member named 'g2' in 'N::X'; did you mean simply 'g2'?}} X::S2 x_s2; // expected-error{{no type named 'S2' in 'N::X'; did you mean simply 'S2'?}} x.g2(); // expected-error{{no member named 'g2' in 'N::X'}} } } namespace test0 { class ClassFriend { void test(); }; class MemberFriend { public: void test(); }; void declared_test(); class Class { static void member(); // expected-note 2 {{declared private here}} friend class ClassFriend; friend class UndeclaredClassFriend; friend void undeclared_test(); friend void declared_test(); friend void MemberFriend::test(); }; void declared_test() { Class::member(); } void undeclared_test() { Class::member(); } void unfriended_test() { Class::member(); // expected-error {{'member' is a private member of 'test0::Class'}} } void ClassFriend::test() { Class::member(); } void MemberFriend::test() { Class::member(); } class UndeclaredClassFriend { void test() { Class::member(); } }; class ClassNonFriend { void test() { Class::member(); // expected-error {{'member' is a private member of 'test0::Class'}} } }; } // Make sure that friends have access to inherited protected members. namespace test2 { struct X; class ilist_half_node { friend struct ilist_walker_bad; X *Prev; protected: X *getPrev() { return Prev; } // expected-note{{member is declared here}} }; class ilist_node : private ilist_half_node { // expected-note {{declared private here}} expected-note {{constrained by private inheritance here}} friend struct ilist_walker; X *Next; X *getNext() { return Next; } // expected-note {{declared private here}} }; struct X : ilist_node {}; struct ilist_walker { static X *getPrev(X *N) { return N->getPrev(); } static X *getNext(X *N) { return N->getNext(); } }; struct ilist_walker_bad { static X *getPrev(X *N) { return N->getPrev(); } // \ // expected-error {{'getPrev' is a private member of 'test2::ilist_half_node'}} \ // expected-error {{cannot cast 'test2::X' to its private base class 'test2::ilist_half_node'}} static X *getNext(X *N) { return N->getNext(); } // \ // expected-error {{'getNext' is a private member of 'test2::ilist_node'}} }; } namespace test3 { class A { protected: int x; }; // expected-note {{declared protected here}} class B : public A { friend int foo(B*); }; int foo(B *p) { return p->x; } int foo(const B *p) { return p->x; // expected-error {{'x' is a protected member of 'test3::A'}} } } namespace test3a { class A { protected: int x; }; class B : public A { friend int foo(B*); }; int foo(B * const p) { return p->x; } } namespace test4 { template class Holder { T object; friend bool operator==(Holder &a, Holder &b) { return a.object == b.object; // expected-error {{invalid operands to binary expression}} } }; struct Inequal {}; bool test() { Holder a, b; return a == b; // expected-note {{requested here}} } } // PR6174 namespace test5 { namespace ns { class A; } class ns::A { private: int x; friend class B; }; namespace ns { class B { int test(A *p) { return p->x; } }; } } // PR6207 namespace test6 { struct A {}; struct B { friend A::A(); friend A::~A(); friend A &A::operator=(const A&); }; } namespace test7 { template struct X { X(); ~X(); void foo(); void bar(); }; class A { friend void X::foo(); friend X::X(); friend X::X(const X&); private: A(); // expected-note 2 {{declared private here}} }; template<> void X::foo() { A a; } template<> void X::bar() { A a; // expected-error {{calling a private constructor}} } template<> X::X() { A a; } template<> X::~X() { A a; // expected-error {{calling a private constructor}} } } // Return types, parameters and default arguments to friend functions. namespace test8 { class A { typedef int I; // expected-note 4 {{declared private here}} static const I x = 0; // expected-note {{implicitly declared private here}} friend I f(I i); template friend I g(I i); }; const A::I A::x; A::I f(A::I i = A::x) {} template A::I g(A::I i) { T t; } template A::I g(A::I i); A::I f2(A::I i = A::x) {} // expected-error 3 {{is a private member of}} template A::I g2(A::I i) { // expected-error 2 {{is a private member of}} T t; } template A::I g2(A::I i); } // PR6885 namespace test9 { class B { friend class test9; }; } // PR7230 namespace test10 { extern "C" void test10_f(void); extern "C" void test10_g(void); namespace NS { class C { void foo(void); // expected-note {{declared private here}} friend void test10::test10_f(void); }; static C* bar; } void test10_f(void) { NS::bar->foo(); } void test10_g(void) { NS::bar->foo(); // expected-error {{private member}} } } // PR8705 namespace test11 { class A { public: void test0(int); void test1(int); void test2(int); void test3(int); }; class B { typedef int private_type; // expected-note 2 {{implicitly declared private here}} friend void A::test0(int); friend void A::test1(int); }; void A::test0(B::private_type x) {} void A::test1(int x = B::private_type()) {} void A::test2(B::private_type x) {} // expected-error {{'private_type' is a private member of 'test11::B'}} void A::test3(int x = B::private_type()) {} // expected-error {{'private_type' is a private member of 'test11::B'}} } // PR9221 namespace test12 { struct A { void foo(); }; class B : private A { friend void A::foo(); void *mem; }; void A::foo() { void *var = static_cast(this)->mem; } } namespace PR9103 { struct base { protected: static void foo(void) {} }; struct cls: base { friend void bar(void) { base::foo(); } }; } // PR13642. When computing the effective context, we were walking up // the DC chain for the canonical decl, which is unfortunate if that's // (e.g.) a friend declaration. namespace test14 { class A { class B { // expected-note {{implicitly declared private here}} static int i; friend void c(); }; }; void c() { A::B::i = 5; // expected-error {{'B' is a private member of 'test14::A'}} } } @