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// RUN: %clang_cc1 -fsyntax-only -std=c++11 -verify %s
// libstdc++ 4.6.x contains a bug where it defines std::__atomic[0,1,2] as a
// non-inline namespace, then selects one of those namespaces and reopens it
// as inline, as a strange way of providing something like a using-directive.
// Clang has an egregious hack to work around the problem, by allowing a
// namespace to be converted from non-inline to inline in this one specific
// case.
#ifdef BE_THE_HEADER
#pragma clang system_header
namespace std {
namespace __atomic0 {
typedef int foobar;
}
namespace __atomic1 {
typedef void foobar;
}
inline namespace __atomic0 {}
}
#else
#define BE_THE_HEADER
#include "libstdcxx_atomic_ns_hack.cpp"
std::foobar fb;
using T = void; // expected-note {{here}}
using T = std::foobar; // expected-error {{different types ('std::foobar' (aka 'int') vs 'void')}}
#endif
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