diff options
Diffstat (limited to 'clang/test/CXX/dcl.dcl/basic.namespace/namespace.def')
6 files changed, 299 insertions, 0 deletions
diff --git a/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/namespace.memdef/p3.cpp b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/namespace.memdef/p3.cpp new file mode 100644 index 0000000..069ca0a --- /dev/null +++ b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/namespace.memdef/p3.cpp @@ -0,0 +1,93 @@ +// RUN: %clang_cc1 -fsyntax-only %s -verify + +// C++'0x [namespace.memdef] p3: +// Every name first declared in a namespace is a member of that namespace. If +// a friend declaration in a non-local class first declares a class or +// function the friend class or function is a member of the innermost +// enclosing namespace. + +namespace N { + struct S0 { + friend struct F0; + friend void f0(int); + struct F0 member_func(); + }; + struct F0 { }; + F0 f0() { return S0().member_func(); } +} +N::F0 f0_var = N::f0(); + +// Ensure we can handle attaching friend declarations to an enclosing namespace +// with multiple contexts. +namespace N { struct S1 { struct IS1; }; } +namespace N { + struct S1::IS1 { + friend struct F1; + friend void f1(int); + struct F1 member_func(); + }; + struct F1 { }; + F1 f1() { return S1::IS1().member_func(); } +} +N::F1 f1_var = N::f1(); + +// The name of the friend is not found by unqualified lookup (3.4.1) or by +// qualified lookup (3.4.3) until a matching declaration is provided in that +// namespace scope (either before or after the class definition granting +// friendship). If a friend function is called, its name may be found by the +// name lookup that considers functions from namespaces and classes +// associated with the types of the function arguments (3.4.2). If the name +// in a friend declaration is neither qualified nor a template-id and the +// declaration is a function or an elaborated-type-specifier, the lookup to +// determine whether the entity has been previously declared shall not +// consider any scopes outside the innermost enclosing namespace. + +template<typename T> struct X0 { }; +struct X1 { }; + +struct Y { + template<typename T> union X0; + template<typename T> friend union X0; + + union X1; + friend union X1; +}; + +namespace N { + namespace M { + template<typename T> class X; + } +} + +namespace N3 { + class Y { + template<typename T> friend class N::M::X; + }; +} + +// FIXME: Woefully inadequate for testing + +// Friends declared as template-ids aren't subject to the restriction +// on innermost namespaces. +// rdar://problem/8552377 +namespace test5 { + template <class T> void f(T); + namespace ns { + class A { + friend void f<int>(int); + static void foo(); // expected-note 2 {{declared private here}} + }; + + // Note that this happens without instantiation. + template <class T> void f(T) { + A::foo(); // expected-error {{'foo' is a private member of 'test5::ns::A'}} + } + } + + template <class T> void f(T) { + ns::A::foo(); // expected-error {{'foo' is a private member of 'test5::ns::A'}} + } + + template void f<int>(int); + template void f<long>(long); //expected-note {{instantiation}} +} diff --git a/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/namespace.unnamed/p1.cpp b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/namespace.unnamed/p1.cpp new file mode 100644 index 0000000..b4ec585 --- /dev/null +++ b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/namespace.unnamed/p1.cpp @@ -0,0 +1,42 @@ +// RUN: %clang_cc1 -emit-llvm-only -verify %s + +// This lame little test was ripped straight from the standard. +namespace { + int i; // expected-note {{candidate}} +} +void test0() { i++; } + +namespace A { + namespace { + int i; // expected-note {{candidate}} + int j; + } + void test1() { i++; } +} + +using namespace A; + +void test2() { + i++; // expected-error {{reference to 'i' is ambiguous}} + A::i++; + j++; +} + + +// Test that all anonymous namespaces in a translation unit are +// considered the same context. +namespace { + class Test3 {}; // expected-note {{previous definition}} +} +namespace { + class Test3 {}; // expected-error {{redefinition of 'Test3'}} +} + +namespace test4 { + namespace { + class Test4 {}; // expected-note {{previous definition}} + } + namespace { + class Test4 {}; // expected-error {{redefinition of 'Test4'}} + } +} diff --git a/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p1.cpp b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p1.cpp new file mode 100644 index 0000000..6ffa873 --- /dev/null +++ b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p1.cpp @@ -0,0 +1,9 @@ +// RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 -pedantic %s + +// Intentionally compiled as C++03 to test the extension warning. + +namespace a {} // original +namespace a {} // ext +inline namespace b {} // inline original expected-warning {{inline namespaces are}} +inline namespace b {} // inline ext expected-warning {{inline namespaces are}} +inline namespace {} // inline unnamed expected-warning {{inline namespaces are}} diff --git a/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p2.cpp b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p2.cpp new file mode 100644 index 0000000..411c16c --- /dev/null +++ b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p2.cpp @@ -0,0 +1,24 @@ +// RUN: %clang_cc1 -fsyntax-only -verify %s + +// PR8430 +namespace N { + class A { }; +} + +namespace M { } + +using namespace M; + +namespace N { + namespace M { + } +} + +namespace M { + namespace N { + } +} + +namespace N { + A *getA(); +} diff --git a/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p7.cpp b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p7.cpp new file mode 100644 index 0000000..98d12f9 --- /dev/null +++ b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p7.cpp @@ -0,0 +1,13 @@ +// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s + +namespace NIL {} // expected-note {{previous definition}} +inline namespace NIL {} // expected-error {{cannot be reopened as inline}} +inline namespace IL {} // expected-note {{previous definition}} +namespace IL {} // expected-warning{{inline namespace cannot be re-opened as a non-inline namespace}} + +namespace {} // expected-note {{previous definition}} +inline namespace {} // expected-error {{cannot be reopened as inline}} +namespace X { + inline namespace {} // expected-note {{previous definition}} + namespace {} // expected-error {{cannot be reopened as non-inline}} +} diff --git a/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p8.cpp b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p8.cpp new file mode 100644 index 0000000..3bc4856 --- /dev/null +++ b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p8.cpp @@ -0,0 +1,118 @@ +// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s + +// Fun things you can do with inline namespaces: + +inline namespace X { + void f1(); + + inline namespace Y { + void f2(); + + template <typename T> class C {}; + } + + // Specialize and partially specialize somewhere else. + template <> class C<int> {}; + template <typename T> class C<T*> {}; +} + +// Qualified and unqualified lookup as if member of enclosing NS. +void foo1() { + f1(); + ::f1(); + X::f1(); + Y::f1(); // expected-error {{no member named 'f1' in namespace 'X::Y'}} + + f2(); + ::f2(); + X::f2(); + Y::f2(); +} + +template <> class C<float> {}; +template <typename T> class C<T&> {}; + +template class C<double>; + + +// As well as all the fun with ADL. + +namespace ADL { + struct Outer {}; + + inline namespace IL { + struct Inner {}; + + void fo(Outer); + } + + void fi(Inner); + + inline namespace IL2 { + void fi2(Inner); + } +} + +void foo2() { + ADL::Outer o; + ADL::Inner i; + fo(o); + fi(i); + fi2(i); +} + +// Let's not forget overload sets. +struct Distinct {}; +inline namespace Over { + void over(Distinct); +} +void over(int); + +void foo3() { + Distinct d; + ::over(d); +} + +// Don't forget to do correct lookup for redeclarations. +namespace redecl { inline namespace n1 { + + template <class Tp> class allocator; + + template <> + class allocator<void> + { + public: + typedef const void* const_pointer; + }; + + template <class Tp> + class allocator + { + public: + typedef Tp& reference; + + void allocate(allocator<void>::const_pointer = 0); + }; + +} } + +// Normal redeclarations (not for explicit instantiations or +// specializations) are distinct in an inline namespace vs. not in an +// inline namespace. +namespace redecl2 { + inline namespace n1 { + void f(int) { } + struct X1 { }; + template<typename T> void f(T) { } + template<typename T> struct X2 { }; + int i = 71; + enum E { e }; + } + + void f(int) { } + struct X1 { }; + template<typename T> void f(T) { } + template<typename T> struct X2 { }; + int i = 71; + enum E { e }; +} |