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// RUN: %clang_cc1 -fsyntax-only -verify %s
extern "C" { void f(bool); }
namespace std {
using ::f;
inline void f() { return f(true); }
}
namespace M {
void f(float);
}
namespace N {
using M::f;
void f(int) { } // expected-note{{previous}}
void f(int) { } // expected-error{{redefinition}}
}
namespace N {
void f(double);
void f(long);
}
struct X0 {
void operator()(int);
void operator()(long);
};
struct X1 : X0 {
// FIXME: give this operator() a 'float' parameter to test overloading
// behavior. It currently fails.
void operator()();
using X0::operator();
void test() {
(*this)(1);
}
};
struct A { void f(); };
struct B : A { };
class C : B { using B::f; };
// PR5751: Resolve overloaded functions through using decls.
namespace O {
void f(int i);
void f(double d);
}
namespace P {
void f();
void g(void (*ptr)(int));
using O::f;
void test() {
f();
f(1);
void (*f_ptr1)(double) = f;
void (*f_ptr2)() = f;
g(f);
}
}
// Make sure that ADL can find names brought in by using decls.
namespace test0 {
namespace ns {
class Foo {};
namespace inner {
void foo(char *); // expected-note {{no known conversion}}
}
using inner::foo;
}
void test(ns::Foo *p) {
foo(*p); // expected-error {{no matching function for call to 'foo'}}
}
}
// Redeclarations!
namespace test1 {
namespace ns0 { struct Foo {}; }
namespace A { void foo(ns0::Foo *p, int y, int z); }
namespace ns2 { using A::foo; }
namespace ns1 { struct Bar : ns0::Foo {}; }
namespace A { void foo(ns0::Foo *p, int y, int z = 0); } // expected-note {{candidate}}
namespace ns1 { using A::foo; }
namespace ns2 { struct Baz : ns1::Bar {}; }
namespace A { void foo(ns0::Foo *p, int y = 0, int z); }
void test(ns2::Baz *p) {
foo(p, 0, 0); // okay!
foo(p, 0); // should be fine!
foo(p); // expected-error {{no matching function}}
}
}
namespace test2 {
namespace ns { int foo; }
template <class T> using ns::foo; // expected-error {{cannot template a using declaration}}
// PR8022
struct A {
template <typename T> void f(T);
};
class B : A {
template <typename T> using A::f<T>; // expected-error {{cannot template a using declaration}}
};
}
// PR8756
namespace foo
{
class Class1; // expected-note{{forward declaration}}
class Class2
{
using ::foo::Class1::Function; // expected-error{{incomplete type 'foo::Class1' named in nested name specifier}}
};
}
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