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// RUN: %clang_cc1 -fsyntax-only -verify %s
namespace N {
struct X { };
X operator+(X, X);
void f(X); // expected-note 2 {{'N::f' declared here}}
void g(X); // expected-note{{candidate function}}
void test_multiadd(X x) {
(void)(x + x);
}
}
namespace M {
struct Y : N::X { };
}
void f();
void test_operator_adl(N::X x, M::Y y) {
(void)(x + x);
(void)(y + y);
}
void test_func_adl(N::X x, M::Y y) {
f(x);
f(y);
(f)(x); // expected-error{{too many arguments to function call, expected 0, have 1; did you mean 'N::f'?}}
::f(x); // expected-error{{too many arguments to function call, expected 0, have 1; did you mean 'N::f'?}}
}
namespace N {
void test_multiadd2(X x) {
(void)(x + x);
}
}
void test_func_adl_only(N::X x) {
g(x);
}
namespace M {
int g(N::X); // expected-note{{candidate function}}
void test(N::X x) {
g(x); // expected-error{{call to 'g' is ambiguous}}
int i = (g)(x);
int g(N::X);
g(x); // okay; calls locally-declared function, no ADL
}
}
void test_operator_name_adl(N::X x) {
(void)operator+(x, x);
}
struct Z { };
int& f(Z);
namespace O {
char &f();
void test_global_scope_adl(Z z) {
{
int& ir = f(z);
}
}
}
extern "C" {
struct L { int x; };
}
void h(L); // expected-note{{candidate function}}
namespace P {
void h(L); // expected-note{{candidate function}}
void test_transparent_context_adl(L l) {
{
h(l); // expected-error {{call to 'h' is ambiguous}}
}
}
}
namespace test5 {
namespace NS {
struct A;
void foo(void (*)(A&));
}
void bar(NS::A& a);
void test() {
foo(&bar);
}
}
// PR6762: __builtin_va_list should be invisible to ADL on all platforms.
void test6_function(__builtin_va_list &argv);
namespace test6 {
void test6_function(__builtin_va_list &argv);
void test() {
__builtin_va_list args;
test6_function(args);
}
}
// PR13682: we might need to instantiate class temploids.
namespace test7 {
namespace inner {
class A {};
void test7_function(A &);
}
template <class T> class B : public inner::A {};
void test(B<int> &ref) {
test7_function(ref);
}
}
// Like test7, but ensure we don't complain if the type is properly
// incomplete.
namespace test8 {
template <class T> class B;
void test8_function(B<int> &);
void test(B<int> &ref) {
test8_function(ref);
}
}
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