forked from OSchip/llvm-project
101 lines
2.1 KiB
C++
101 lines
2.1 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify -fblocks %s -Wnon-pod-varargs
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extern char version[];
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class C {
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public:
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C(int);
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void g(int a, ...);
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static void h(int a, ...);
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};
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void g(int a, ...);
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void t1()
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{
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C c(10);
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g(10, c); // expected-warning{{cannot pass object of non-POD type 'C' through variadic function; call will abort at runtime}}
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g(10, version);
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}
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void t2()
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{
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C c(10);
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c.g(10, c); // expected-warning{{cannot pass object of non-POD type 'C' through variadic method; call will abort at runtime}}
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c.g(10, version);
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C::h(10, c); // expected-warning{{cannot pass object of non-POD type 'C' through variadic function; call will abort at runtime}}
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C::h(10, version);
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}
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int (^block)(int, ...);
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void t3()
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{
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C c(10);
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block(10, c); // expected-warning{{cannot pass object of non-POD type 'C' through variadic block; call will abort at runtime}}
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block(10, version);
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}
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class D {
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public:
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void operator() (int a, ...);
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};
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void t4()
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{
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C c(10);
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D d;
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d(10, c); // expected-warning{{cannot pass object of non-POD type 'C' through variadic method; call will abort at runtime}}
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d(10, version);
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}
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class E {
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E(int, ...);
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};
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void t5()
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{
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C c(10);
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E e(10, c); // expected-warning{{cannot pass object of non-POD type 'C' through variadic constructor; call will abort at runtime}}
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(void)E(10, c); // expected-warning{{cannot pass object of non-POD type 'C' through variadic constructor; call will abort at runtime}}
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}
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// PR5761: unevaluated operands and the non-POD warning
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class Foo {
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public:
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Foo() {}
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};
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int Helper(...);
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const int size = sizeof(Helper(Foo()));
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namespace std {
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class type_info { };
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}
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struct Base { virtual ~Base(); };
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Base &get_base(...);
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int eat_base(...);
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void test_typeid(Base &base) {
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(void)typeid(get_base(base)); // expected-warning{{cannot pass object of non-POD type 'Base' through variadic function; call will abort at runtime}}
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(void)typeid(eat_base(base)); // okay
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}
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// rdar://7985267 - Shouldn't warn, doesn't actually use __builtin_va_start is
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// magic.
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void t6(Foo somearg, ... ) {
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__builtin_va_list list;
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__builtin_va_start(list, somearg);
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}
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