Merge pull request #2004 from waywardmonkeys/updates

Updates

107 files changed, 16664 insertions, 10044 deletions

diff --git a/system/include/libcxx/__config b/system/include/libcxx/__config
index a45b02de..45207392 100644
--- a/system/include/libcxx/__config
+++ b/system/include/libcxx/__config
@@ -174,7 +174,7 @@
 #endif
 
 #ifndef _LIBCPP_TYPE_VIS
-#  if __has_attribute(type_visibility)
+#  if __has_attribute(__type_visibility__)
 #    define _LIBCPP_TYPE_VIS __attribute__ ((__type_visibility__("default")))
 #  else
 #    define _LIBCPP_TYPE_VIS __attribute__ ((__visibility__("default")))
@@ -389,9 +389,7 @@ namespace std {
 #endif
 
 #if _GNUC_VER < 404
-#define _LIBCPP_HAS_NO_ADVANCED_SFINAE
 #define _LIBCPP_HAS_NO_DECLTYPE
-#define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
 #define _LIBCPP_HAS_NO_DELETED_FUNCTIONS
 #define _LIBCPP_HAS_NO_UNICODE_CHARS
 #define _LIBCPP_HAS_NO_VARIADICS
@@ -402,6 +400,11 @@ namespace std {
 #define _LIBCPP_HAS_NO_NULLPTR
 #endif
 
+#if _GNUC_VER < 407
+#define _LIBCPP_HAS_NO_ADVANCED_SFINAE
+#define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
+#endif
+
 #endif  // __GXX_EXPERIMENTAL_CXX0X__
 
 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { namespace _LIBCPP_NAMESPACE {
@@ -454,7 +457,6 @@ namespace std {
 #define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
 #define _LIBCPP_HAS_NO_NULLPTR
 #define _LIBCPP_HAS_NO_UNICODE_CHARS
-#define _LIBCPP_HAS_NO_STRONG_ENUMS
 #define _LIBCPP_HAS_IS_BASE_OF
 
 #if defined(_AIX)
@@ -514,7 +516,7 @@ template <unsigned> struct __static_assert_check {};
 #define __has_feature(__x) 0
 #endif
 
-#if __has_feature(cxx_explicit_conversions)
+#if __has_feature(cxx_explicit_conversions) || defined(__IBMCPP__)
 #   define _LIBCPP_EXPLICIT explicit
 #else
 #   define _LIBCPP_EXPLICIT
@@ -567,6 +569,16 @@ template <unsigned> struct __static_assert_check {};
 #define _LIBCPP_WCTYPE_IS_MASK
 #endif
 
+#if defined(__APPLE__)
+#ifndef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR
+#  define _LIBCPP_TRIVIAL_PAIR_COPY_CTOR 0
+#endif
+#endif
+
+#ifndef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR
+#  define _LIBCPP_TRIVIAL_PAIR_COPY_CTOR 1
+#endif
+
 #ifndef _LIBCPP_STD_VER
 #  if  __cplusplus <= 201103L
 #    define _LIBCPP_STD_VER 11
diff --git a/system/include/libcxx/__undef_min_max b/system/include/libcxx/__undef_min_max
index 2b6bc90a..5df9412c 100644
--- a/system/include/libcxx/__undef_min_max
+++ b/system/include/libcxx/__undef_min_max
@@ -10,7 +10,8 @@
 
 #ifdef min
 #if defined(_MSC_VER) && ! defined(__clang__)
-_LIBCPP_WARNING("macro min is incompatible with C++.  #undefing min")
+_LIBCPP_WARNING("macro min is incompatible with C++.  Try #define NOMINMAX "
+                "before any Windows header. #undefing min")
 #else
 #warning: macro min is incompatible with C++.  #undefing min
 #endif
@@ -19,7 +20,8 @@ _LIBCPP_WARNING("macro min is incompatible with C++.  #undefing min")
 
 #ifdef max
 #if defined(_MSC_VER) && ! defined(__clang__)
-_LIBCPP_WARNING("macro max is incompatible with C++.  #undefing max")
+_LIBCPP_WARNING("macro max is incompatible with C++.  Try #define NOMINMAX "
+                "before any Windows header. #undefing max")
 #else
 #warning: macro max is incompatible with C++.  #undefing max
 #endif
diff --git a/system/include/libcxx/dynarray b/system/include/libcxx/experimental/dynarray
index b0d04f91..7c5c9b3f 100644
--- a/system/include/libcxx/dynarray
+++ b/system/include/libcxx/experimental/dynarray
@@ -17,7 +17,7 @@
 /*
     dynarray synopsis
 
-namespace std {
+namespace std { namespace experimental {
 
 template< typename T >
 class dynarray
@@ -93,7 +93,7 @@ public:
     void fill(const T& v);
 };
 
-}  // std
+}}  // std::experimental
 
 */
 
@@ -112,7 +112,7 @@ public:
 #pragma GCC system_header
 #endif
 
-_LIBCPP_BEGIN_NAMESPACE_STD
+namespace std { namespace experimental { inline namespace __array_extensions_v1 {
 
 template <class _Tp>
 struct _LIBCPP_TYPE_VIS_ONLY dynarray
@@ -302,9 +302,12 @@ dynarray<_Tp>::at(size_type __n) const
     return data()[__n];
 }
 
-template <class _Tp, class _Alloc>
-struct _LIBCPP_TYPE_VIS_ONLY uses_allocator<dynarray<_Tp>, _Alloc> : true_type {};
+}}}
+
 
+_LIBCPP_BEGIN_NAMESPACE_STD
+template <class _Tp, class _Alloc>
+struct _LIBCPP_TYPE_VIS_ONLY uses_allocator<std::experimental::dynarray<_Tp>, _Alloc> : true_type {};
 _LIBCPP_END_NAMESPACE_STD
 
 #endif  // if _LIBCPP_STD_VER > 11 
diff --git a/system/include/libcxx/optional b/system/include/libcxx/experimental/optional
index a8e6a991..3848da87 100644
--- a/system/include/libcxx/optional
+++ b/system/include/libcxx/experimental/optional
@@ -18,8 +18,7 @@
 
 #include <initializer_list>
 
-namespace std
-{
+namespace std { namespace experimental {
 
 // optional for object types
 template <class T>
@@ -110,7 +109,7 @@ template <class T> constexpr optional<typename decay<T>::type> make_optional(T&&
 template <class T> struct hash;
 template <class T> struct hash<optional<T>>;
 
-}  // std
+}}  // std::experimental
 
 */
 
@@ -118,8 +117,7 @@ template <class T> struct hash<optional<T>>;
 #include <functional>
 #include <stdexcept>
 
-namespace std  // purposefully not using versioning namespace
-{
+namespace std { namespace experimental {
 
 class _LIBCPP_EXCEPTION_ABI bad_optional_access
     : public logic_error
@@ -142,7 +140,7 @@ public:
     virtual ~bad_optional_access() _NOEXCEPT;
 };
 
-}  // std
+}}  // std::experimental
 
 #if _LIBCPP_STD_VER > 11
 
@@ -163,7 +161,7 @@ public:
 #pragma GCC system_header
 #endif
 
-_LIBCPP_BEGIN_NAMESPACE_STD
+namespace std { namespace experimental { inline namespace __library_fundamentals_v1 {
 
 struct in_place_t {};
 constexpr in_place_t in_place{};
@@ -677,10 +675,14 @@ make_optional(_Tp&& __v)
     return optional<typename decay<_Tp>::type>(_VSTD::forward<_Tp>(__v));
 }
 
+}}}  // namespace std::experimental::__library_fundamentals_v1
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
 template <class _Tp>
-struct _LIBCPP_TYPE_VIS_ONLY hash<optional<_Tp> >
+struct _LIBCPP_TYPE_VIS_ONLY hash<std::experimental::optional<_Tp> >
 {
-    typedef optional<_Tp> argument_type;
+    typedef std::experimental::optional<_Tp> argument_type;
     typedef size_t        result_type;
 
     _LIBCPP_INLINE_VISIBILITY
diff --git a/system/include/libcxx/ext/__hash b/system/include/libcxx/ext/__hash
index 04975bfd..c0523cce 100644
--- a/system/include/libcxx/ext/__hash
+++ b/system/include/libcxx/ext/__hash
@@ -19,7 +19,7 @@
 namespace __gnu_cxx {