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When -pedantic-errors is specified `__has_extension(<feature>)` is always false when it would otherwise be true. This causes C++03 <atomic> to break along with other issues. This patch avoids the above problem by using __is_identifier(...) instead since it is not affected by -pedantic-errors. For example instead of checking for __has_extension(c_atomics) we now check `!__is_identifier(_Atomic)`, which is only true when _Atomic is not a keyword provided by the compiler. This patch applies similar changes to the detection logic for __decltype and __nullptr as well. Note that it does not apply this change to the C++03 `static_assert` macro since -Wc11-extensions warnings generated by expanding that macro will appear in user code, and will not be suppressed as part of a system header. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@291995 91177308-0d34-0410-b5e6-96231b3b80d8
libc++ Documentation ==================== The libc++ documentation is written using the Sphinx documentation generator. It is currently tested with Sphinx 1.1.3. To build the documents into html configure libc++ with the following cmake options: * -DLLVM_ENABLE_SPHINX=ON * -DLIBCXX_INCLUDE_DOCS=ON After configuring libc++ with these options the make rule `docs-libcxx-html` should be available.