1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
2 | |
3 | namespace N { |
4 | struct X { }; |
5 | |
6 | X operator+(X, X); |
7 | |
8 | void f(X); // expected-note 2 {{'N::f' declared here}} |
9 | void g(X); // expected-note{{candidate function}} |
10 | |
11 | void test_multiadd(X x) { |
12 | (void)(x + x); |
13 | } |
14 | } |
15 | |
16 | namespace M { |
17 | struct Y : N::X { }; |
18 | } |
19 | |
20 | void f(); |
21 | |
22 | void test_operator_adl(N::X x, M::Y y) { |
23 | (void)(x + x); |
24 | (void)(y + y); |
25 | } |
26 | |
27 | void test_func_adl(N::X x, M::Y y) { |
28 | f(x); |
29 | f(y); |
30 | (f)(x); // expected-error{{too many arguments to function call, expected 0, have 1; did you mean 'N::f'?}} |
31 | ::f(x); // expected-error{{too many arguments to function call, expected 0, have 1; did you mean 'N::f'?}} |
32 | } |
33 | |
34 | namespace N { |
35 | void test_multiadd2(X x) { |
36 | (void)(x + x); |
37 | } |
38 | } |
39 | |
40 | |
41 | void test_func_adl_only(N::X x) { |
42 | g(x); |
43 | } |
44 | |
45 | namespace M { |
46 | int g(N::X); // expected-note{{candidate function}} |
47 | |
48 | void test(N::X x) { |
49 | g(x); // expected-error{{call to 'g' is ambiguous}} |
50 | int i = (g)(x); |
51 | |
52 | int g(N::X); |
53 | g(x); // okay; calls locally-declared function, no ADL |
54 | } |
55 | } |
56 | |
57 | |
58 | void test_operator_name_adl(N::X x) { |
59 | (void)operator+(x, x); |
60 | } |
61 | |
62 | struct Z { }; |
63 | int& f(Z); |
64 | |
65 | namespace O { |
66 | char &f(); |
67 | void test_global_scope_adl(Z z) { |
68 | { |
69 | int& ir = f(z); |
70 | } |
71 | } |
72 | } |
73 | |
74 | extern "C" { |
75 | struct L { int x; }; |
76 | } |
77 | |
78 | void h(L); // expected-note{{candidate function}} |
79 | |
80 | namespace P { |
81 | void h(L); // expected-note{{candidate function}} |
82 | void test_transparent_context_adl(L l) { |
83 | { |
84 | h(l); // expected-error {{call to 'h' is ambiguous}} |
85 | } |
86 | } |
87 | } |
88 | |
89 | namespace test5 { |
90 | namespace NS { |
91 | struct A; |
92 | void foo(void (*)(A&)); |
93 | } |
94 | void bar(NS::A& a); |
95 | |
96 | void test() { |
97 | foo(&bar); |
98 | } |
99 | } |
100 | |
101 | // PR6762: __builtin_va_list should be invisible to ADL on all platforms. |
102 | void test6_function(__builtin_va_list &argv); |
103 | namespace test6 { |
104 | void test6_function(__builtin_va_list &argv); |
105 | |
106 | void test() { |
107 | __builtin_va_list args; |
108 | test6_function(args); |
109 | } |
110 | } |
111 | |
112 | // PR13682: we might need to instantiate class temploids. |
113 | namespace test7 { |
114 | namespace inner { |
115 | class A {}; |
116 | void test7_function(A &); |
117 | } |
118 | template <class T> class B : public inner::A {}; |
119 | |
120 | void test(B<int> &ref) { |
121 | test7_function(ref); |
122 | } |
123 | } |
124 | |
125 | // Like test7, but ensure we don't complain if the type is properly |
126 | // incomplete. |
127 | namespace test8 { |
128 | template <class T> class B; |
129 | void test8_function(B<int> &); |
130 | |
131 | void test(B<int> &ref) { |
132 | test8_function(ref); |
133 | } |
134 | } |
135 | |