Merge pull request #1009 from waywardmonkeys/another-libcxx-update1.3.6

Another libcxx update

81 files changed, 991 insertions, 898 deletions

diff --git a/system/include/libcxx/__bit_reference b/system/include/libcxx/__bit_reference
index 8180295b..1621deb8 100644
--- a/system/include/libcxx/__bit_reference
+++ b/system/include/libcxx/__bit_reference
@@ -81,6 +81,16 @@ class __bit_reference<_Cp, false>
 {
 };
 
+template <class _Cp>
+_LIBCPP_INLINE_VISIBILITY inline
+void
+swap(__bit_reference<_Cp> __x, __bit_reference<_Cp> __y) _NOEXCEPT
+{
+    bool __t = __x;
+    __x = __y;
+    __y = __t;
+}
+
 template <class _Cp, class _Dp>
 _LIBCPP_INLINE_VISIBILITY inline
 void
diff --git a/system/include/libcxx/__config b/system/include/libcxx/__config
index 8617b866..959390d5 100644
--- a/system/include/libcxx/__config
+++ b/system/include/libcxx/__config
@@ -11,7 +11,7 @@
 #ifndef _LIBCPP_CONFIG
 #define _LIBCPP_CONFIG
 
-#if !_MSC_VER // explicit macro necessary because it is only defined below in this file
+#ifndef _MSC_VER // explicit macro necessary because it is only defined below in this file
 #pragma GCC system_header
 #endif
 
@@ -96,24 +96,27 @@
 # endif
 #endif  // !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN)
 
-#if _WIN32
+#ifdef _WIN32
 
 // only really useful for a DLL
 #ifdef _LIBCPP_DLL // this should be a compiler builtin define ideally...
 # ifdef cxx_EXPORTS
 #  define _LIBCPP_HIDDEN
-#  define _LIBCPP_VISIBLE __declspec(dllexport)
+#  define _LIBCPP_FUNC_VIS __declspec(dllexport)
+#  define _LIBCPP_TYPE_VIS __declspec(dllexport)
 # else
 #  define _LIBCPP_HIDDEN
-#  define _LIBCPP_VISIBLE __declspec(dllimport)
+#  define _LIBCPP_FUNC_VIS __declspec(dllimport)
+#  define _LIBCPP_TYPE_VIS __declspec(dllimport)
 # endif
 #else
 # define _LIBCPP_HIDDEN
-# define _LIBCPP_VISIBLE
+# define _LIBCPP_FUNC_VIS
+# define _LIBCPP_TYPE_VIS
 #endif
 
 #ifndef _LIBCPP_INLINE_VISIBILITY
-# if _MSC_VER
+# ifdef _MSC_VER
 #  define _LIBCPP_INLINE_VISIBILITY __forceinline
 # else // MinGW GCC and Clang
 #  define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__))
@@ -121,11 +124,11 @@
 #endif
 
 #ifndef _LIBCPP_EXCEPTION_ABI
-#define _LIBCPP_EXCEPTION_ABI _LIBCPP_VISIBLE
+#define _LIBCPP_EXCEPTION_ABI _LIBCPP_TYPE_VIS
 #endif
 
 #ifndef _LIBCPP_ALWAYS_INLINE
-# if _MSC_VER
+# ifdef _MSC_VER
 #  define _LIBCPP_ALWAYS_INLINE __forceinline
 # endif
 #endif
@@ -136,8 +139,16 @@
 #define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden")))
 #endif
 
-#ifndef _LIBCPP_VISIBLE
-#define _LIBCPP_VISIBLE __attribute__ ((__visibility__("default")))
+#ifndef _LIBCPP_FUNC_VIS
+#define _LIBCPP_FUNC_VIS __attribute__ ((__visibility__("default")))
+#endif
+
+#ifndef _LIBCPP_TYPE_VIS
+#  if __has_attribute(type_visibility)
+#    define _LIBCPP_TYPE_VIS __attribute__ ((__type_visibility__("default")))
+#  else
+#    define _LIBCPP_TYPE_VIS __attribute__ ((__visibility__("default")))
+#  endif
 #endif
 
 #ifndef _LIBCPP_INLINE_VISIBILITY
@@ -145,7 +156,7 @@
 #endif
 
 #ifndef _LIBCPP_EXCEPTION_ABI
-#define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default")))
+#define _LIBCPP_EXCEPTION_ABI _LIBCPP_TYPE_VIS
 #endif
 
 #ifndef _LIBCPP_CANTTHROW
@@ -261,7 +272,7 @@ typedef __char32_t char32_t;
 #define _LIBCPP_HAS_NO_CONSTEXPR
 #endif
 
-#if __FreeBSD__ && (__ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L)
+#if defined(__FreeBSD__) && (__ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L)
 #define _LIBCPP_HAS_QUICK_EXIT
 #define _LIBCPP_HAS_C11_FEATURES
 #endif
@@ -424,7 +435,7 @@ template <unsigned> struct __static_assert_check {};
 #endif
 
 #ifdef _LIBCPP_HAS_NO_STRONG_ENUMS
-#define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_VISIBLE x { enum __lx
+#define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx
 #define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \
     __lx __v_; \
     _LIBCPP_ALWAYS_INLINE x(__lx __v) : __v_(__v) {} \
@@ -432,7 +443,7 @@ template <unsigned> struct __static_assert_check {};
     _LIBCPP_ALWAYS_INLINE operator int() const {return __v_;} \
     };
 #else  // _LIBCPP_HAS_NO_STRONG_ENUMS
-#define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_VISIBLE x
+#define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_TYPE_VIS x
 #define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x)
 #endif  // _LIBCPP_HAS_NO_STRONG_ENUMS
 
@@ -440,18 +451,18 @@ template <unsigned> struct __static_assert_check {};
 #define _LIBCPP_EXTERN_TEMPLATE(...) extern template __VA_ARGS__;
 #endif
 
-#if __APPLE__ || __FreeBSD__ || _WIN32 || __sun__
+#if defined(__APPLE__) || defined(__FreeBSD__) || defined(_WIN32) || defined(__sun__)
 #define _LIBCPP_LOCALE__L_EXTENSIONS 1
 #endif
-#if __FreeBSD__
+#ifdef __FreeBSD__
 #define _DECLARE_C99_LDBL_MATH 1
 #endif
 
-#if __APPLE__ || __FreeBSD__
+#if defined(__APPLE__) || defined(__FreeBSD__)
 #define _LIBCPP_HAS_DEFAULTRUNELOCALE
 #endif
 
-#if __APPLE__ || __FreeBSD__ || __sun__
+#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__)
 #define _LIBCPP_WCTYPE_IS_MASK
 #endif
 
diff --git a/system/include/libcxx/__debug b/system/include/libcxx/__debug
index 4a0e3cec..0d631bf0 100644
--- a/system/include/libcxx/__debug
+++ b/system/include/libcxx/__debug
@@ -16,7 +16,9 @@
 #   include <cstdlib>
 #   include <cstdio>
 #   include <cstddef>
-#   define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : (_VSTD::printf("%s\n", m), _VSTD::abort()))
+#   ifndef _LIBCPP_ASSERT
+#      define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : (_VSTD::printf("%s\n", m), _VSTD::abort()))
+#   endif
 
 #endif
 
@@ -24,9 +26,9 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-struct _LIBCPP_VISIBLE __c_node;
+struct _LIBCPP_TYPE_VIS __c_node;
 
-struct _LIBCPP_VISIBLE __i_node
+struct _LIBCPP_TYPE_VIS __i_node
 {
     void* __i_;
     __i_node* __next_;
@@ -40,7 +42,7 @@ struct _LIBCPP_VISIBLE __i_node
     ~__i_node();
 };
 
-struct _LIBCPP_VISIBLE __c_node
+struct _LIBCPP_TYPE_VIS __c_node
 {
     void* __c_;
     __c_node* __next_;
@@ -117,7 +119,7 @@ _C_node<_Cont>::__subscriptable(const void* __i, ptrdiff_t __n) const
     return _Cp->__subscriptable(__j, __n);
 }
 
-class _LIBCPP_VISIBLE __libcpp_db
+class _LIBCPP_TYPE_VIS __libcpp_db
 {
     __c_node** __cbeg_;
     __c_node** __cend_;
@@ -176,11 +178,11 @@ private:
     _LIBCPP_HIDDEN
     __i_node* __find_iterator(const void* __i) const;
 
-    friend _LIBCPP_VISIBLE __libcpp_db* __get_db();
+    friend _LIBCPP_FUNC_VIS __libcpp_db* __get_db();
 };
 
-_LIBCPP_VISIBLE __libcpp_db* __get_db();
-_LIBCPP_VISIBLE const __libcpp_db* __get_const_db();
+_LIBCPP_FUNC_VIS __libcpp_db* __get_db();
+_LIBCPP_FUNC_VIS const __libcpp_db* __get_const_db();
 
 
 _LIBCPP_END_NAMESPACE_STD
diff --git a/system/include/libcxx/__functional_03 b/system/include/libcxx/__functional_03
index 3a5397d8..b52d6926 100644
--- a/system/include/libcxx/__functional_03
+++ b/system/include/libcxx/__functional_03
@@ -203,7 +203,7 @@ class _LIBCPP_EXCEPTION_ABI bad_function_call
 {
 };
 
-template<class _Fp> class _LIBCPP_VISIBLE function; // undefined
+template<class _Fp> class _LIBCPP_TYPE_VIS function; // undefined
 
 namespace __function
 {
@@ -644,7 +644,7 @@ __func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::target_type() const
 }  // __function
 
 template<class _Rp>
-class _LIBCPP_VISIBLE function<_Rp()>
+class _LIBCPP_TYPE_VIS function<_Rp()>
 {
     typedef __function::__base<_Rp()> __base;
     aligned_storage<3*sizeof(void*)>::type __buf_;
@@ -928,7 +928,7 @@ function<_Rp()>::target() const
 #endif  // _LIBCPP_NO_RTTI
 
 template<class _Rp, class _A0>
-class _LIBCPP_VISIBLE function<_Rp(_A0)>
+class _LIBCPP_TYPE_VIS function<_Rp(_A0)>
     : public unary_function<_A0, _Rp>
 {
     typedef __function::__base<_Rp(_A0)> __base;
@@ -1230,7 +1230,7 @@ function<_Rp(_A0)>::target() const
 #endif  // _LIBCPP_NO_RTTI
 
 template<class _Rp, class _A0, class _A1>
-class _LIBCPP_VISIBLE function<_Rp(_A0, _A1)>
+class _LIBCPP_TYPE_VIS function<_Rp(_A0, _A1)>
     : public binary_function<_A0, _A1, _Rp>
 {
     typedef __function::__base<_Rp(_A0, _A1)> __base;
@@ -1532,7 +1532,7 @@ function<_Rp(_A0, _A1)>::target() const
 #endif  // _LIBCPP_NO_RTTI
 
 template<class _Rp, class _A0, class _A1, class _A2>
-class _LIBCPP_VISIBLE function<_Rp(_A0, _A1, _A2)>
+class _LIBCPP_TYPE_VIS function<_Rp(_A0, _A1, _A2)>
 {
     typedef __function::__base<_Rp(_A0, _A1, _A2)> __base;
     aligned_storage<3*sizeof(void*)>::type __buf_;
@@ -1860,11 +1860,11 @@ swap(function<_Fp>& __x, function<_Fp>& __y)
 {return __x.swap(__y);}
 
 template<class _Tp> struct __is_bind_expression : public false_type {};
-template<class _Tp> struct _LIBCPP_VISIBLE is_bind_expression
+template<class _Tp> struct _LIBCPP_TYPE_VIS is_bind_expression
     : public __is_bind_expression<typename remove_cv<_Tp>::type> {};
 
 template<class _Tp> struct __is_placeholder : public integral_constant<int, 0> {};
-template<class _Tp> struct _LIBCPP_VISIBLE is_placeholder
+template<class _Tp> struct _LIBCPP_TYPE_VIS is_placeholder
     : public __is_placeholder<typename remove_cv<_Tp>::type> {};
 
 namespace placeholders
diff --git a/system/include/libcxx/__functional_base b/system/include/libcxx/__functional_base
index 2385459c..40a63a85 100644
--- a/system/include/libcxx/__functional_base
+++ b/system/include/libcxx/__functional_base
@@ -23,21 +23,21 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _Arg, class _Result>
-struct _LIBCPP_VISIBLE unary_function
+struct _LIBCPP_TYPE_VIS unary_function
 {
     typedef _Arg    argument_type;
     typedef _Result result_type;
 };
 
 template <class _Arg1, class _Arg2, class _Result>
-struct _LIBCPP_VISIBLE binary_function
+struct _LIBCPP_TYPE_VIS binary_function
 {
     typedef _Arg1   first_argument_type;
     typedef _Arg2   second_argument_type;
     typedef _Result result_type;
 };
 
-template <class _Tp> struct _LIBCPP_VISIBLE hash;
+template <class _Tp> struct _LIBCPP_TYPE_VIS hash;
 
 template <class _Tp>
 struct __has_result_type
@@ -51,7 +51,7 @@ public:
 };
 
 template <class _Tp>
-struct _LIBCPP_VISIBLE less : binary_function<_Tp, _Tp, bool>
+struct _LIBCPP_TYPE_VIS less : binary_function<_Tp, _Tp, bool>
 {
     _LIBCPP_INLINE_VISIBILITY bool operator()(const _Tp& __x, const _Tp& __y) const
         {return __x < __y;}
@@ -348,7 +348,7 @@ struct __invoke_return
 };
 
 template <class _Tp>
-class _LIBCPP_VISIBLE reference_wrapper
+class _LIBCPP_TYPE_VIS reference_wrapper
     : public __weak_result_type<_Tp>
 {
 public:
diff --git a/system/include/libcxx/__functional_base_03 b/system/include/libcxx/__functional_base_03
index a1005bf7..11165a96 100644
--- a/system/include/libcxx/__functional_base_03
+++ b/system/include/libcxx/__functional_base_03
@@ -996,7 +996,7 @@ struct __invoke_return2
 };
 
 template <class _Tp>
-class _LIBCPP_VISIBLE reference_wrapper
+class _LIBCPP_TYPE_VIS reference_wrapper
     : public __weak_result_type<_Tp>
 {
 public:
diff --git a/system/include/libcxx/__hash_table b/system/include/libcxx/__hash_table
index ba04b3e5..6f6050d3 100644
--- a/system/include/libcxx/__hash_table
+++ b/system/include/libcxx/__hash_table
@@ -26,7 +26,7 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-_LIBCPP_VISIBLE
+_LIBCPP_FUNC_VIS
 size_t __next_prime(size_t __n);
 
 template <class _NodePtr>
@@ -80,14 +80,14 @@ __next_pow2(size_t __n)
 }
 
 template <class _Tp, class _Hash, class _Equal, class _Alloc> class __hash_table;
-template <class _ConstNodePtr> class _LIBCPP_VISIBLE __hash_const_iterator;
-template <class _HashIterator> class _LIBCPP_VISIBLE __hash_map_iterator;
-template <class _HashIterator> class _LIBCPP_VISIBLE __hash_map_const_iterator;
+template <class _ConstNodePtr> class _LIBCPP_TYPE_VIS __hash_const_iterator;
+template <class _HashIterator> class _LIBCPP_TYPE_VIS __hash_map_iterator;
+template <class _HashIterator> class _LIBCPP_TYPE_VIS __hash_map_const_iterator;
 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
-    class _LIBCPP_VISIBLE unordered_map;
+    class _LIBCPP_TYPE_VIS unordered_map;
 
 template <class _NodePtr>
-class _LIBCPP_VISIBLE __hash_iterator
+class _LIBCPP_TYPE_VIS __hash_iterator
 {
     typedef _NodePtr __node_pointer;
 
@@ -142,14 +142,14 @@ private:
         {}
 
     template <class, class, class, class> friend class __hash_table;
-    template <class> friend class _LIBCPP_VISIBLE __hash_const_iterator;
-    template <class> friend class _LIBCPP_VISIBLE __hash_map_iterator;
-    template <class, class, class, class, class> friend class _LIBCPP_VISIBLE unordered_map;
-    template <class, class, class, class, class> friend class _LIBCPP_VISIBLE unordered_multimap;
+    template <class> friend class _LIBCPP_TYPE_VIS __hash_const_iterator;
+    template <class> friend class _LIBCPP_TYPE_VIS __hash_map_iterator;
+    template <class, class, class, class, class> friend class _LIBCPP_TYPE_VIS unordered_map;
+    template <class, class, class, class, class> friend class _LIBCPP_TYPE_VIS unordered_multimap;
 };
 
 template <class _ConstNodePtr>
-class _LIBCPP_VISIBLE __hash_const_iterator
+class _LIBCPP_TYPE_VIS __hash_const_iterator
 {
     typedef _ConstNodePtr __node_pointer;
 
@@ -220,15 +220,15 @@ private:
         {}
 
     template <class, class, class, class> friend class __hash_table;
-    template <class> friend class _LIBCPP_VISIBLE __hash_map_const_iterator;
-    template <class, class, class, class, class> friend class _LIBCPP_VISIBLE unordered_map;
-    template <class, class, class, class, class> friend class _LIBCPP_VISIBLE unordered_multimap;
+    template <class> friend class _LIBCPP_TYPE_VIS __hash_map_const_iterator;
+    template <class, class, class, cl