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// RUN: clang-cc -fsyntax-only -verify %s
// C++03 [namespace.udecl]p11:
// If a function declaration in namespace scope or block scope has
// the same name and the same parameter types as a function
// introduced by a using-declaration, the program is
// ill-formed. [Note: two using-declarations may introduce functions
// with the same name and the same parameter types. If, for a call
// to an unqualified function name, function overload resolution
// selects the functions introduced by such using-declarations, the
// function call is ill-formed.
namespace test0 {
namespace ns { void foo(); } // expected-note {{target of using declaration}}
int foo(); // expected-note {{conflicting declaration}}
using ns::foo; // expected-error {{target of using declaration conflicts with declaration already in scope}}
}
namespace test1 {
namespace ns { void foo(); } // expected-note {{target of using declaration}}
using ns::foo; //expected-note {{using declaration}}
int foo(); // expected-error {{declaration conflicts with target of using declaration already in scope}}
}
namespace test2 {
namespace ns { void foo(); } // expected-note 2 {{target of using declaration}}
void test0() {
int foo(); // expected-note {{conflicting declaration}}
using ns::foo; // expected-error {{target of using declaration conflicts with declaration already in scope}}
}
void test1() {
using ns::foo; //expected-note {{using declaration}}
int foo(); // expected-error {{declaration conflicts with target of using declaration already in scope}}
}
}
namespace test3 {
namespace ns { void foo(); } // expected-note 2 {{target of using declaration}}
class Test0 {
void test() {
int foo(); // expected-note {{conflicting declaration}}
using ns::foo; // expected-error {{target of using declaration conflicts with declaration already in scope}}
}
};
class Test1 {
void test() {
using ns::foo; //expected-note {{using declaration}}
int foo(); // expected-error {{declaration conflicts with target of using declaration already in scope}}
}
};
}
namespace test4 {
namespace ns { void foo(); } // expected-note 2 {{target of using declaration}}
template <typename> class Test0 {
void test() {
int foo(); // expected-note {{conflicting declaration}}
using ns::foo; // expected-error {{target of using declaration conflicts with declaration already in scope}}
}
};
template <typename> class Test1 {
void test() {
using ns::foo; //expected-note {{using declaration}}
int foo(); // expected-error {{declaration conflicts with target of using declaration already in scope}}
}
};
}
// FIXME: we should be able to diagnose both of these, but we can't.
// ...I'm actually not sure why we can diagnose either of them; it's
// probably a bug.
namespace test5 {
namespace ns { void foo(int); } // expected-note {{target of using declaration}}
template <typename T> class Test0 {
void test() {
int foo(T);
using ns::foo;
}
};
template <typename T> class Test1 {
void test() {
using ns::foo; // expected-note {{using declaration}}
int foo(T); // expected-error {{declaration conflicts with target of using declaration already in scope}}
}
};
template class Test0<int>;
template class Test1<int>; // expected-note {{in instantiation of member function}}
}
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