1 // I, Howard Hinnant, hereby place this code in the public domain.
2 
3 // Test overload resolution among reference types
4 
5 // { dg-do compile { target c++11 } }
6 // { dg-options "-fno-ipa-icf" }
7 
8 template <bool> struct sa;
9 template <> struct sa<true> {};
10 
11 struct one   {char x[1];};
12 struct two   {char x[2];};
13 struct three {char x[3];};
14 struct four  {char x[4];};
15 struct five  {char x[5];};
16 struct six   {char x[6];};
17 struct seven {char x[7];};
18 struct eight {char x[8];};
19 
20 struct A
21 {
22     A();
23     A(const volatile A&&);
24 };
25 
26                A    source();
27 const          A  c_source();
28       volatile A  v_source();
29 const volatile A cv_source();
30 
31 // 7 at a time
32 
33 one   sink_7_1234567(               A&);  // { dg-message "one sink_7_1234567|no known conversion" }
34 two   sink_7_1234567(const          A&);
35 three sink_7_1234567(volatile       A&);
36 four  sink_7_1234567(const volatile A&);
37 five  sink_7_1234567(               A&&);
38 six   sink_7_1234567(const          A&&);
39 seven sink_7_1234567(volatile       A&&);
40 
41 int test7_1234567()
42 {
43                    A a;
44     const          A ca = a; // { dg-error "deleted" }
45           volatile A va;
46     const volatile A cva = a; // { dg-error "deleted" }
47     sink_7_1234567(cv_source());  // { dg-error "" }
48     return 0;
49 }
50 
51 one   sink_7_1235678(               A&);
52 two   sink_7_1235678(const          A&);
53 three sink_7_1235678(volatile       A&);
54 five  sink_7_1235678(               A&&);
55 six   sink_7_1235678(const          A&&);
56 seven sink_7_1235678(volatile       A&&);
57 eight sink_7_1235678(const volatile A&&); // { dg-message "" }
58 
59 int test7_1235678()
60 {
61                    A a;
62     const          A ca = a; // { dg-error "deleted" }
63           volatile A va;
64     const volatile A cva = a; // { dg-error "deleted" }
65     sink_7_1235678(cva);	// { dg-error "" }
66     return 0;
67 }
68 
69 two   sink_7_2345678(const          A&);
70 three sink_7_2345678(volatile       A&);
71 four  sink_7_2345678(const volatile A&);
72 five  sink_7_2345678(               A&&);
73 six   sink_7_2345678(const          A&&);
74 seven sink_7_2345678(volatile       A&&);
75 eight sink_7_2345678(const volatile A&&);
76 
77 int test7_2345678()
78 {
79                    A a;
80     const          A ca = a; // { dg-error "deleted" }
81           volatile A va;
82     const volatile A cva = a; // { dg-error "deleted" }
83     sink_7_2345678(a);  // { dg-error "" }
84     return 0;
85 }
86 
87 one   sink_7_1234678(               A&);
88 two   sink_7_1234678(const          A&);
89 three sink_7_1234678(volatile       A&);
90 four  sink_7_1234678(const volatile A&);
91 six   sink_7_1234678(const          A&&);
92 seven sink_7_1234678(volatile       A&&);
93 eight sink_7_1234678(const volatile A&&);
94 
95 int test7_1234678()
96 {
97                    A a;
98     const          A ca = a; // { dg-error "deleted" }
99           volatile A va;
100     const volatile A cva = a; // { dg-error "deleted" }
101     sink_7_1234678(source());  // { dg-error "" }
102     return 0;
103 }
104 
105 int main()
106 {
107     return test7_2345678() + test7_1234678();
108 }
109