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