forked from OSchip/llvm-project
35 lines
1.0 KiB
C++
35 lines
1.0 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -std=c++11 -verify %s
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// libstdc++ 4.6.x contains a bug where it defines std::__atomic[0,1,2] as a
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// non-inline namespace, then selects one of those namespaces and reopens it
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// as inline, as a strange way of providing something like a using-directive.
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// Clang has an egregious hack to work around the problem, by allowing a
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// namespace to be converted from non-inline to inline in this one specific
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// case.
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// the last 4.6 release was 2013, so the hack is removed. This checks __atomic
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// is not special.
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#ifdef BE_THE_HEADER
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#pragma clang system_header
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namespace std {
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namespace __atomic0 { // expected-note {{previous definition}}
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typedef int foobar;
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} // namespace __atomic0
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namespace __atomic1 {
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typedef void foobar;
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} // namespace __atomic1
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inline namespace __atomic0 {} // expected-error {{cannot be reopened as inline}}
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} // namespace std
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#else
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#define BE_THE_HEADER
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#include "libstdcxx_atomic_ns_hack.cpp"
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std::foobar fb; // expected-error {{no type named 'foobar' in namespace}}
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#endif
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