36 lines
891 B
C++
36 lines
891 B
C++
|
// 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
|