49 lines
2.4 KiB
C++
49 lines
2.4 KiB
C++
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// RUN: %clang_cc1 -verify -Wclass-varargs -std=c++98 %s
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// RUN: %clang_cc1 -verify -Wclass-varargs -std=c++11 %s
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struct A {};
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struct B { ~B(); };
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class C { char *c_str(); };
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struct D { char *c_str(); };
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struct E { E(); };
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struct F { F(); char *c_str(); };
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void v(...);
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void w(const char*, ...) __attribute__((format(printf, 1, 2)));
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void test(A a, B b, C c, D d, E e, F f) {
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v(a); // expected-warning-re {{passing object of class type 'A' through variadic function{{$}}}}
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v(b); // expected-error-re {{cannot pass object of non-{{POD|trivial}} type 'B' through variadic function; call will abort at runtime}}
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v(c); // expected-warning {{passing object of class type 'C' through variadic function; did you mean to call '.c_str()'?}}
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v(d); // expected-warning {{passing object of class type 'D' through variadic function; did you mean to call '.c_str()'?}}
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v(e);
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v(f);
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#if __cplusplus < 201103L
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// expected-error@-3 {{cannot pass object of non-POD type 'E' through variadic function; call will abort at runtime}}
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// expected-error@-3 {{cannot pass object of non-POD type 'F' through variadic function; call will abort at runtime}}
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#else
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// expected-warning-re@-6 {{passing object of class type 'E' through variadic function{{$}}}}
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// expected-warning@-6 {{passing object of class type 'F' through variadic function; did you mean to call '.c_str()'?}}
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#endif
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v(d.c_str());
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v(f.c_str());
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v(0);
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v('x');
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w("%s", a); // expected-warning {{format specifies type 'char *' but the argument has type 'A'}}
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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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w("%s", c); // expected-warning {{format specifies type 'char *' but the argument has type 'C'}}
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w("%s", d); // expected-warning {{format specifies type 'char *' but the argument has type 'D'}}
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w("%s", e);
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w("%s", f);
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#if __cplusplus < 201103L
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// 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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// 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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// expected-note@-4 {{did you mean to call the c_str() method?}}
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#else
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// expected-warning@-7 {{format specifies type 'char *' but the argument has type 'E'}}
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// expected-warning@-7 {{format specifies type 'char *' but the argument has type 'F'}}
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#endif
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}
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