1 // RUN: %clang_cc1 -fsyntax-only -fcxx-exceptions -verify -Wno-unused -Wunused-comparison %s
18   x == 7; // expected-warning {{equality comparison result unused}} \  in test()
19           // expected-note {{use '=' to turn this equality comparison into an assignment}}  in test()
20   x != 7; // expected-warning {{inequality comparison result unused}} \  in test()
21           // expected-note {{use '|=' to turn this inequality comparison into an or-assignment}}  in test()
22   x < 7;  // expected-warning {{relational comparison result unused}}  in test()
23   x > 7;  // expected-warning {{relational comparison result unused}}  in test()
24   x <= 7; // expected-warning {{relational comparison result unused}}  in test()
25   x >= 7; // expected-warning {{relational comparison result unused}}  in test()
27   7 == x; // expected-warning {{equality comparison result unused}}  in test()
28   p == p; // expected-warning {{equality comparison result unused}} \  in test()
29           // expected-note {{use '=' to turn this equality comparison into an assignment}} \  in test()
30           // expected-warning {{self-comparison always evaluates to true}}  in test()
31   a == a; // expected-warning {{equality comparison result unused}} \  in test()
32           // expected-note {{use '=' to turn this equality comparison into an assignment}}  in test()
33   a == b; // expected-warning {{equality comparison result unused}} \  in test()
34           // expected-note {{use '=' to turn this equality comparison into an assignment}}  in test()
35   a != b; // expected-warning {{inequality comparison result unused}} \  in test()
36           // expected-note {{use '|=' to turn this inequality comparison into an or-assignment}}  in test()
37   a < b;  // expected-warning {{relational comparison result unused}}  in test()
38   a > b;  // expected-warning {{relational comparison result unused}}  in test()
39   a <= b; // expected-warning {{relational comparison result unused}}  in test()
40   a >= b; // expected-warning {{relational comparison result unused}}  in test()
42   A() == b; // expected-warning {{equality comparison result unused}}  in test()
43   if (42) x == 7; // expected-warning {{equality comparison result unused}} \  in test()
44                   // expected-note {{use '=' to turn this equality comparison into an assignment}}  in test()
45   else if (42) x == 7; // expected-warning {{equality comparison result unused}} \  in test()
46 …                   // expected-note {{use '=' to turn this equality comparison into an assignment}}  in test()
47   else x == 7; // expected-warning {{equality comparison result unused}} \  in test()
48                // expected-note {{use '=' to turn this equality comparison into an assignment}}  in test()
49   do x == 7; // expected-warning {{equality comparison result unused}} \  in test()
50              // expected-note {{use '=' to turn this equality comparison into an assignment}}  in test()
52   while (false) x == 7; // expected-warning {{equality comparison result unused}} \  in test()
53 …                   // expected-note {{use '=' to turn this equality comparison into an assignment}}  in test()
54   for (x == 7; // expected-warning {{equality comparison result unused}} \  in test()
55                // expected-note {{use '=' to turn this equality comparison into an assignment}}  in test()
57        x == 7) // expected-warning {{equality comparison result unused}} \  in test()
58                // expected-note {{use '=' to turn this equality comparison into an assignment}}  in test()
59     x == 7; // expected-warning {{equality comparison result unused}} \  in test()
60             // expected-note {{use '=' to turn this equality comparison into an assignment}}  in test()
61   switch (42) default: x == 7; // expected-warning {{equality comparison result unused}} \  in test()
62 …                   // expected-note {{use '=' to turn this equality comparison into an assignment}}  in test()
63   switch (42) case 42: x == 7; // expected-warning {{equality comparison result unused}} \  in test()
64 …                   // expected-note {{use '=' to turn this equality comparison into an assignment}}  in test()
71       x == 7; // expected-warning {{equality comparison result unused}} \  in test()
72               // expected-note {{use '=' to turn this equality comparison into an assignment}}  in test()
76   (void)(p == p); // expected-warning {{self-comparison always evaluates to true}}  in test()
79   { bool b = ({ x == 7; // expected-warning {{equality comparison result unused}} \  in test()
80 …                   // expected-note {{use '=' to turn this equality comparison into an assignment}}  in test()
121   cout < cin;  // expected-warning {{relational comparison result unused}}  in test()
134   s == 1;  // expected-warning{{equality comparison result unused}}  in test()
135            // expected-note@-1{{use '=' to turn this equality comparison into an assignment}}  in test()