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// RUN: %clang_cc1 -fsyntax-only -verify %s
struct Opaque0 {};
struct Opaque1 {};
// Redeclarations are okay in a namespace.
namespace test0 {
namespace ns {
void foo(Opaque0); // expected-note 2 {{candidate function}}
}
using ns::foo;
using ns::foo;
void test0() {
foo(Opaque1()); // expected-error {{no matching function for call}}
}
namespace ns {
void foo(Opaque1);
}
void test1() {
foo(Opaque1()); // expected-error {{no matching function for call}}
}
using ns::foo;
void test2() {
foo(Opaque1());
}
using ns::foo;
}
// Make sure we handle transparent contexts the same way.
namespace test1 {
namespace ns {
void foo(Opaque0); // expected-note 2 {{candidate function}}
}
extern "C++" {
using ns::foo;
}
void test0() {
foo(Opaque1()); // expected-error {{no matching function for call}}
}
namespace ns {
void foo(Opaque1);
}
void test1() {
foo(Opaque1()); // expected-error {{no matching function for call}}
}
extern "C++" {
using ns::foo;
}
void test2() {
foo(Opaque1());
}
}
// Make sure we detect invalid redeclarations that can't be detected
// until template instantiation.
namespace test2 {
template <class T> struct Base {
typedef Base type;
void foo();
};
template <class T> struct Derived : Base<T> {
// These are invalid redeclarations, detectable only after
// instantiation.
using Base<T>::foo; // expected-note {{previous using decl}}
using Base<T>::type::foo; //expected-error {{redeclaration of using decl}}
};
template struct Derived<int>; // expected-note {{in instantiation of template class}}
}
// Redeclarations are okay in a function.
namespace test3 {
namespace N {
int f(int);
typedef int type;
}
void g() {
using N::f;
using N::f;
using N::type;
using N::type;
}
}
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