1// RUN: %clang_cc1 -verify -Wclass-varargs -std=c++98 %s
2// RUN: %clang_cc1 -verify -Wclass-varargs -std=c++11 %s
3
4struct A {};
5struct B { ~B(); };
6class C { char *c_str(); };
7struct D { char *c_str(); };
8struct E { E(); };
9struct F { F(); char *c_str(); };
10
11void v(...);
12void w(const char*, ...) __attribute__((format(printf, 1, 2)));
13
14void test(A a, B b, C c, D d, E e, F f) {
15  v(a); // expected-warning-re {{passing object of class type 'A' through variadic function{{$}}}}
16  v(b); // expected-error-re {{cannot pass object of non-{{POD|trivial}} type 'B' through variadic function; call will abort at runtime}}
17  v(c); // expected-warning {{passing object of class type 'C' through variadic function; did you mean to call '.c_str()'?}}
18  v(d); // expected-warning {{passing object of class type 'D' through variadic function; did you mean to call '.c_str()'?}}
19  v(e);
20  v(f);
21#if __cplusplus < 201103L
22  // expected-error@-3 {{cannot pass object of non-POD type 'E' through variadic function; call will abort at runtime}}
23  // expected-error@-3 {{cannot pass object of non-POD type 'F' through variadic function; call will abort at runtime}}
24#else
25  // expected-warning-re@-6 {{passing object of class type 'E' through variadic function{{$}}}}
26  // expected-warning@-6 {{passing object of class type 'F' through variadic function; did you mean to call '.c_str()'?}}
27#endif
28
29  v(d.c_str());
30  v(f.c_str());
31  v(0);
32  v('x');
33
34  w("%s", a); // expected-warning {{format specifies type 'char *' but the argument has type 'A'}}
35  w("%s", b); // expected-error-re {{cannot pass non-{{POD|trivial}} object of type 'B' to variadic function; expected type from format string was 'char *'}}
36  w("%s", c); // expected-warning {{format specifies type 'char *' but the argument has type 'C'}}
37  w("%s", d); // expected-warning {{format specifies type 'char *' but the argument has type 'D'}}
38  w("%s", e);
39  w("%s", f);
40#if __cplusplus < 201103L
41  // expected-error@-3 {{cannot pass non-POD object of type 'E' to variadic function; expected type from format string was 'char *'}}
42  // expected-error@-3 {{cannot pass non-POD object of type 'F' to variadic function; expected type from format string was 'char *'}}
43  // expected-note@-4 {{did you mean to call the c_str() method?}}
44#else
45  // expected-warning@-7 {{format specifies type 'char *' but the argument has type 'E'}}
46  // expected-warning@-7 {{format specifies type 'char *' but the argument has type 'F'}}
47#endif
48}
49