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Inline namespaces are always available in Clang. Rely on that without

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testing via __has_feature, since __has_feature for C++0x features no
longer evaluates true in C++98/03 mode.

Also, eliminate the redundant using directive. Inline namespaces make
their members visible in the enclosing namespace automatically.



git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@124293 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Douglas Gregor 2011-01-26 15:39:56 +00:00
parent aab015a929
commit 497ac97247
1 changed files with 3 additions and 10 deletions
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9
include/__config
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@ -148,7 +148,7 @@ typedef __char32_t char32_t;
#define _LIBCPP_HAS_NO_TRAILING_RETURN #define _LIBCPP_HAS_NO_TRAILING_RETURN
#endif #endif
#if __has_feature(cxx_inline_namespaces) // Inline namespaces are available in Clang regardless of C++ dialect.
#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE {
#define _LIBCPP_END_NAMESPACE_STD } } #define _LIBCPP_END_NAMESPACE_STD } }
#define _STD std::_LIBCPP_NAMESPACE #define _STD std::_LIBCPP_NAMESPACE
@ -156,15 +156,8 @@ typedef __char32_t char32_t;
namespace std { namespace std {
inline namespace _LIBCPP_NAMESPACE { inline namespace _LIBCPP_NAMESPACE {
} }
using namespace _LIBCPP_NAMESPACE;
} }
#else // __has_feature(cxx_inline_namespaces)
#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {
#define _LIBCPP_END_NAMESPACE_STD }
#define _STD std
#endif // __has_feature(cxx_inline_namespaces)
#if !(__has_feature(cxx_constexpr)) #if !(__has_feature(cxx_constexpr))
#define _LIBCPP_HAS_NO_CONSTEXPR #define _LIBCPP_HAS_NO_CONSTEXPR
#endif #endif