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150
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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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