Implement LWG Issue #2285 - make_reverse_iterator. Also mark issues #1450 and #2205 as complete; they are just wording changes in the standard. Mark issues #2359, #2320 and #2322 as complete - libc++ implements them already.

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Per N3924, mark random_shuffle as deprecated in the synopsis for <algorithm>. Since we don't actually do anything when a call is deprecated, there is no functionality change. Maybe someday, we'll decide to warn when using a deprecated function.

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Implement LWG Paper n3887: Consistent Metafunction Aliases. This adds std::tuple_element_t<> as an alias for tuple_element<>::type. Clean up the synopsis for tuple_element in <utility> as well.

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Remove a stray tab that snuck into a test. No functionality change

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Implement LWG 2324: Insert iterator constructors should use addressof(). Add two new container classes to the test suite that overload operator &, and add test cases to the insert/front_insert/back_insert iterator tests that use these containers.

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[libc++] Const qualify __gnu_cxx::hash_map<>::const_iterator::pointer type.

Differential Revision: http://llvm-reviews.chandlerc.com/D2811

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Implement LWG #2268: Setting a default argument in the declaration of a member function assign of std::basic_string.

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Mark issues #2240 (wording only) and #2268 (revision 202876) as complete.


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Apply David Majnemer's patch updating the links to the papers from Chicago and Issaquah.

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Add a SG1 paper and some SG1 issues that affect the library to the task list.


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Fix issue number error; 2141 --> 2291 and mark it as complete

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LWG issue #2252: Add more tests for exception safety. No changes needed in the library

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LWG Issue #2271: regex_traits::lookup_classname specification unclear. libc++ already does the right thing; just update the tests.

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Update synposis in <memory> to show move semantics for weak_ptr; add tests for already existing move semantics. Mark LWG issues #2315 (no changes needed), 2316 (move semantics for weak_ptr), 2252 (previous commit) and 2271 (previous commit) as complete.

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Implement LWG #2212: std::is_final. This requires compiler support, which modern versions of clang provide. Also mark LWG #2230 as complete - no code changes needed.

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Remove definition of std::fmaf from libc++. Fixes bug #18910. This function should come from the C standard library. As a drive-by fix, update the tests to remove a warning from -Wabsolute-value

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Mark is_final as a C++14 feature.

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Implement LWG 2193. Default constructors for standard library containers are explicit. Note that libc++ already did this for string/deque/forward_list/list/vector and the unordered containers; implement it for set/multiset/map/multimap. Add tests for all the containers. Two drive-by fixes as well: add a missing explicit in <deque>, and remove a tab that snuck into a container test. This issue is also LLVM bug 15724, and resolves it.

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Do not derive __gnu_cxx::hash<T> from std::hash<T>.

Instead, define explicit specializations for the basic types listed in
the SGI documentation. This solves two problems:

 1) Helps avoid silent ODR violations caused by the absence of a
    user-supplied __gnu_cxx::hash specialization in cases where a std::hash
    specialization exists (e.g. for std::string).

 2) __gnu_cxx::hash semantics are slightly different to those of
    std::hash (for example, the former may dereference a pointer argument)
    so it is inappropriate for __gnu_cxx::hash to receive std::hash
    specializations by default.

Differential Revision: http://llvm-reviews.chandlerc.com/D2747

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Fix a couple of -Wabsolute-value warnings in the libc++ tests

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