45bb8855e0
a non-inline namespace, then reopens it as inline to try to add its symbols to the surrounding namespace. In this one special case, permit the namespace to be reopened as inline, and patch up the name lookup tables to match. llvm-svn: 165263
36 lines
891 B
C++
36 lines
891 B
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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#ifdef BE_THE_HEADER
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#pragma clang system_header
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namespace std {
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namespace __atomic0 {
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typedef int foobar;
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}
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namespace __atomic1 {
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typedef void foobar;
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}
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inline namespace __atomic0 {}
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}
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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;
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using T = void; // expected-note {{here}}
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using T = std::foobar; // expected-error {{different types ('std::foobar' (aka 'int') vs 'void')}}
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#endif
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