// 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 |