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