8fe6808de0
This solution relies on an O(n) scan of redeclarations, which means it might scale poorly in crazy cases with tons of redeclarations brought in by a ton of distinct associated namespaces. I believe that avoiding this is not worth the common-case cost. llvm-svn: 94530
98 lines
1.9 KiB
C++
98 lines
1.9 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
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extern "C" { void f(bool); }
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namespace std {
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using ::f;
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inline void f() { return f(true); }
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}
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namespace M {
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void f(float);
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}
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namespace N {
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using M::f;
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void f(int) { } // expected-note{{previous}}
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void f(int) { } // expected-error{{redefinition}}
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}
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namespace N {
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void f(double);
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void f(long);
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}
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struct X0 {
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void operator()(int);
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void operator()(long);
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};
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struct X1 : X0 {
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// FIXME: give this operator() a 'float' parameter to test overloading
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// behavior. It currently fails.
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void operator()();
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using X0::operator();
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void test() {
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(*this)(1);
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}
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};
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struct A { void f(); };
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struct B : A { };
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class C : B { using B::f; };
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// PR5751: Resolve overloaded functions through using decls.
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namespace O {
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void f(int i);
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void f(double d);
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}
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namespace P {
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void f();
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void g(void (*ptr)(int));
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using O::f;
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void test() {
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f();
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f(1);
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void (*f_ptr1)(double) = f;
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void (*f_ptr2)() = f;
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g(f);
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}
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}
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// Make sure that ADL can find names brought in by using decls.
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namespace test0 {
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namespace ns {
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class Foo {};
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namespace inner {
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void foo(char *); // expected-note {{no known conversion}}
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}
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using inner::foo;
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}
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void test(ns::Foo *p) {
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foo(*p); // expected-error {{no matching function for call to 'foo'}}
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}
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}
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// Redeclarations!
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namespace test1 {
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namespace ns0 { struct Foo {}; }
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namespace A { void foo(ns0::Foo *p, int y, int z); }
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namespace ns2 { using A::foo; }
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namespace ns1 { struct Bar : ns0::Foo {}; }
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namespace A { void foo(ns0::Foo *p, int y, int z = 0); } // expected-note {{candidate}}
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namespace ns1 { using A::foo; }
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namespace ns2 { struct Baz : ns1::Bar {}; }
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namespace A { void foo(ns0::Foo *p, int y = 0, int z); }
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void test(ns2::Baz *p) {
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foo(p, 0, 0); // okay!
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foo(p, 0); // should be fine!
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foo(p); // expected-error {{no matching function}}
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}
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}
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