Add libc++ and libc++abi to third-party.

third_party/libcxx/include/__functional_base

+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP_FUNCTIONAL_BASE
+#define _LIBCPP_FUNCTIONAL_BASE
+
+#include <__config>
+#include <type_traits>
+#include <typeinfo>
+#include <exception>
+#include <new>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#pragma GCC system_header
+#endif
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+template <class _Arg, class _Result>
+struct _LIBCPP_TYPE_VIS_ONLY unary_function
+{
+    typedef _Arg    argument_type;
+    typedef _Result result_type;
+};
+
+template <class _Arg1, class _Arg2, class _Result>
+struct _LIBCPP_TYPE_VIS_ONLY binary_function
+{
+    typedef _Arg1   first_argument_type;
+    typedef _Arg2   second_argument_type;
+    typedef _Result result_type;
+};
+
+template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY hash;
+
+template <class _Tp>
+struct __has_result_type
+{
+private:
+    struct __two {char __lx; char __lxx;};
+    template <class _Up> static __two __test(...);
+    template <class _Up> static char __test(typename _Up::result_type* = 0);
+public:
+    static const bool value = sizeof(__test<_Tp>(0)) == 1;
+};
+
+#if _LIBCPP_STD_VER > 11
+template <class _Tp = void>
+#else
+template <class _Tp>
+#endif
+struct _LIBCPP_TYPE_VIS_ONLY less : binary_function<_Tp, _Tp, bool>
+{
+    _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY 
+    bool operator()(const _Tp& __x, const _Tp& __y) const
+        {return __x < __y;}
+};
+
+#if _LIBCPP_STD_VER > 11
+template <>
+struct _LIBCPP_TYPE_VIS_ONLY less<void>
+{
+    template <class _T1, class _T2> 
+    _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
+    auto operator()(_T1&& __t, _T2&& __u) const
+        { return _VSTD::forward<_T1>(__t) < _VSTD::forward<_T2>(__u); }
+    typedef void is_transparent;
+};
+#endif
+
+// addressof
+
+template <class _Tp>
+inline _LIBCPP_INLINE_VISIBILITY
+_Tp*
+addressof(_Tp& __x) _NOEXCEPT
+{
+    return (_Tp*)&reinterpret_cast<const volatile char&>(__x);
+}
+
+#if defined(_LIBCPP_HAS_OBJC_ARC) && !defined(_LIBCPP_PREDEFINED_OBJC_ARC_ADDRESSOF)
+// Objective-C++ Automatic Reference Counting uses qualified pointers
+// that require special addressof() signatures. When
+// _LIBCPP_PREDEFINED_OBJC_ARC_ADDRESSOF is defined, the compiler
+// itself is providing these definitions. Otherwise, we provide them.
+template <class _Tp>
+inline _LIBCPP_INLINE_VISIBILITY
+__strong _Tp*
+addressof(__strong _Tp& __x) _NOEXCEPT
+{
+  return &__x;
+}
+
+#ifdef _LIBCPP_HAS_OBJC_ARC_WEAK
+template <class _Tp>
+inline _LIBCPP_INLINE_VISIBILITY
+__weak _Tp*
+addressof(__weak _Tp& __x) _NOEXCEPT
+{
+  return &__x;
+}
+#endif
+
+template <class _Tp>
+inline _LIBCPP_INLINE_VISIBILITY
+__autoreleasing _Tp*
+addressof(__autoreleasing _Tp& __x) _NOEXCEPT
+{
+  return &__x;
+}
+
+template <class _Tp>
+inline _LIBCPP_INLINE_VISIBILITY
+__unsafe_unretained _Tp*
+addressof(__unsafe_unretained _Tp& __x) _NOEXCEPT
+{
+  return &__x;
+}
+#endif
+
+#ifdef _LIBCPP_HAS_NO_VARIADICS
+
+#include <__functional_base_03>
+
+#else  // _LIBCPP_HAS_NO_VARIADICS
+
+// __weak_result_type
+
+template <class _Tp>
+struct __derives_from_unary_function
+{
+private:
+    struct __two {char __lx; char __lxx;};
+    static __two __test(...);
+    template <class _Ap, class _Rp>
+        static unary_function<_Ap, _Rp>
+        __test(const volatile unary_function<_Ap, _Rp>*);
+public:
+    static const bool value = !is_same<decltype(__test((_Tp*)0)), __two>::value;
+    typedef decltype(__test((_Tp*)0)) type;
+};
+
+template <class _Tp>
+struct __derives_from_binary_function
+{
+private:
+    struct __two {char __lx; char __lxx;};
+    static __two __test(...);
+    template <class _A1, class _A2, class _Rp>
+        static binary_function<_A1, _A2, _Rp>
+        __test(const volatile binary_function<_A1, _A2, _Rp>*);
+public:
+    static const bool value = !is_same<decltype(__test((_Tp*)0)), __two>::value;
+    typedef decltype(__test((_Tp*)0)) type;
+};
+
+template <class _Tp, bool = __derives_from_unary_function<_Tp>::value>
+struct __maybe_derive_from_unary_function  // bool is true
+    : public __derives_from_unary_function<_Tp>::type
+{
+};
+
+template <class _Tp>
+struct __maybe_derive_from_unary_function<_Tp, false>
+{
+};
+
+template <class _Tp, bool = __derives_from_binary_function<_Tp>::value>
+struct __maybe_derive_from_binary_function  // bool is true
+    : public __derives_from_binary_function<_Tp>::type
+{
+};
+
+template <class _Tp>
+struct __maybe_derive_from_binary_function<_Tp, false>
+{
+};
+
+template <class _Tp, bool = __has_result_type<_Tp>::value>
+struct __weak_result_type_imp // bool is true
+    : public __maybe_derive_from_unary_function<_Tp>,
+      public __maybe_derive_from_binary_function<_Tp>
+{
+    typedef typename _Tp::result_type result_type;
+};
+
+template <class _Tp>
+struct __weak_result_type_imp<_Tp, false>
+    : public __maybe_derive_from_unary_function<_Tp>,
+      public __maybe_derive_from_binary_function<_Tp>
+{
+};
+
+template <class _Tp>
+struct __weak_result_type
+    : public __weak_result_type_imp<_Tp>
+{
+};
+
+// 0 argument case
+
+template <class _Rp>
+struct __weak_result_type<_Rp ()>
+{
+    typedef _Rp result_type;
+};
+
+template <class _Rp>
+struct __weak_result_type<_Rp (&)()>
+{
+    typedef _Rp result_type;
+};
+
+template <class _Rp>
+struct __weak_result_type<_Rp (*)()>
+{
+    typedef _Rp result_type;
+};
+
+// 1 argument case
+
+template <class _Rp, class _A1>
+struct __weak_result_type<_Rp (_A1)>
+    : public unary_function<_A1, _Rp>
+{
+};
+
+template <class _Rp, class _A1>
+struct __weak_result_type<_Rp (&)(_A1)>
+    : public unary_function<_A1, _Rp>
+{
+};
+
+template <class _Rp, class _A1>
+struct __weak_result_type<_Rp (*)(_A1)>
+    : public unary_function<_A1, _Rp>
+{
+};
+
+template <class _Rp, class _Cp>
+struct __weak_result_type<_Rp (_Cp::*)()>
+    : public unary_function<_Cp*, _Rp>
+{
+};
+
+template <class _Rp, class _Cp>
+struct __weak_result_type<_Rp (_Cp::*)() const>
+    : public unary_function<const _Cp*, _Rp>
+{
+};
+
+template <class _Rp, class _Cp>
+struct __weak_result_type<_Rp (_Cp::*)() volatile>
+    : public unary_function<volatile _Cp*, _Rp>
+{
+};
+
+template <class _Rp, class _Cp>
+struct __weak_result_type<_Rp (_Cp::*)() const volatile>
+    : public unary_function<const volatile _Cp*, _Rp>
+{
+};
+
+// 2 argument case
+
+template <class _Rp, class _A1, class _A2>
+struct __weak_result_type<_Rp (_A1, _A2)>
+    : public binary_function<_A1, _A2, _Rp>
+{
+};
+
+template <class _Rp, class _A1, class _A2>
+struct __weak_result_type<_Rp (*)(_A1, _A2)>
+    : public binary_function<_A1, _A2, _Rp>
+{
+};
+
+template <class _Rp, class _A1, class _A2>
+struct __weak_result_type<_Rp (&)(_A1, _A2)>
+    : public binary_function<_A1, _A2, _Rp>
+{
+};
+
+template <class _Rp, class _Cp, class _A1>
+struct __weak_result_type<_Rp (_Cp::*)(_A1)>
+    : public binary_function<_Cp*, _A1, _Rp>
+{
+};
+
+template <class _Rp, class _Cp, class _A1>
+struct __weak_result_type<_Rp (_Cp::*)(_A1) const>
+    : public binary_function<const _Cp*, _A1, _Rp>
+{
+};
+
+template <class _Rp, class _Cp, class _A1>
+struct __weak_result_type<_Rp (_Cp::*)(_A1) volatile>
+    : public binary_function<volatile _Cp*, _A1, _Rp>
+{
+};
+
+template <class _Rp, class _Cp, class _A1>
+struct __weak_result_type<_Rp (_Cp::*)(_A1) const volatile>
+    : public binary_function<const volatile _Cp*, _A1, _Rp>
+{
+};
+
+// 3 or more arguments
+
+template <class _Rp, class _A1, class _A2, class _A3, class ..._A4>
+struct __weak_result_type<_Rp (_A1, _A2, _A3, _A4...)>
+{
+    typedef _Rp result_type;
+};
+
+template <class _Rp, class _A1, class _A2, class _A3, class ..._A4>
+struct __weak_result_type<_Rp (&)(_A1, _A2, _A3, _A4...)>
+{
+    typedef _Rp result_type;
+};
+
+template <class _Rp, class _A1, class _A2, class _A3, class ..._A4>
+struct __weak_result_type<_Rp (*)(_A1, _A2, _A3, _A4...)>
+{
+    typedef _Rp result_type;
+};
+
+template <class _Rp, class _Cp, class _A1, class _A2, class ..._A3>
+struct __weak_result_type<_Rp (_Cp::*)(_A1, _A2, _A3...)>
+{
+    typedef _Rp result_type;
+};
+
+template <class _Rp, class _Cp, class _A1, class _A2, class ..._A3>
+struct __weak_result_type<_Rp (_Cp::*)(_A1, _A2, _A3...) const>
+{
+    typedef _Rp result_type;
+};
+
+template <class _Rp, class _Cp, class _A1, class _A2, class ..._A3>
+struct __weak_result_type<_Rp (_Cp::*)(_A1, _A2, _A3...) volatile>
+{
+    typedef _Rp result_type;
+};
+
+template <class _Rp, class _Cp, class _A1, class _A2, class ..._A3>
+struct __weak_result_type<_Rp (_Cp::*)(_A1, _A2, _A3...) const volatile>
+{
+    typedef _Rp result_type;
+};
+
+// __invoke
+
+// bullets 1 and 2
+
+template <class _Fp, class _A0, class ..._Args,
+            class>
+inline _LIBCPP_INLINE_VISIBILITY
+auto
+__invoke(_Fp&& __f, _A0&& __a0, _Args&& ...__args)
+    -> decltype((_VSTD::forward<_A0>(__a0).*__f)(_VSTD::forward<_Args>(__args)...))
+{
+    return (_VSTD::forward<_A0>(__a0).*__f)(_VSTD::forward<_Args>(__args)...);
+}
+
+template <class _Fp, class _A0, class ..._Args,
+            class>
+inline _LIBCPP_INLINE_VISIBILITY
+auto
+__invoke(_Fp&& __f, _A0&& __a0, _Args&& ...__args)
+    -> decltype(((*_VSTD::forward<_A0>(__a0)).*__f)(_VSTD::forward<_Args>(__args)...))
+{
+    return ((*_VSTD::forward<_A0>(__a0)).*__f)(_VSTD::forward<_Args>(__args)...);
+}
+
+// bullets 3 and 4
+
+template <class _Fp, class _A0,
+            class>
+inline _LIBCPP_INLINE_VISIBILITY
+auto
+__invoke(_Fp&& __f, _A0&& __a0)
+    -> decltype(_VSTD::forward<_A0>(__a0).*__f)
+{
+    return _VSTD::forward<_A0>(__a0).*__f;
+}
+
+template <class _Fp, class _A0,
+            class>
+inline _LIBCPP_INLINE_VISIBILITY
+auto
+__invoke(_Fp&& __f, _A0&& __a0)
+    -> decltype((*_VSTD::forward<_A0>(__a0)).*__f)
+{
+    return (*_VSTD::forward<_A0>(__a0)).*__f;
+}
+
+// bullet 5
+
+template <class _Fp, class ..._Args>
+inline _LIBCPP_INLINE_VISIBILITY
+auto
+__invoke(_Fp&& __f, _Args&& ...__args)
+    -> decltype(_VSTD::forward<_Fp>(__f)(_VSTD::forward<_Args>(__args)...))
+{
+    return _VSTD::forward<_Fp>(__f)(_VSTD::forward<_Args>(__args)...);
+}
+
+template <class _Tp, class ..._Args>
+struct __invoke_return
+{
+    typedef decltype(__invoke(_VSTD::declval<_Tp>(), _VSTD::declval<_Args>()...)) type;
+};
+
+template <class _Tp>
+class _LIBCPP_TYPE_VIS_ONLY reference_wrapper
+    : public __weak_result_type<_Tp>
+{
+public:
+    // types
+    typedef _Tp type;
+private:
+    type* __f_;
+
+public:
+    // construct/copy/destroy
+    _LIBCPP_INLINE_VISIBILITY reference_wrapper(type& __f) _NOEXCEPT
+        : __f_(_VSTD::addressof(__f)) {}
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    private: reference_wrapper(type&&); public: // = delete; // do not bind to temps
+#endif
+
+    // access
+    _LIBCPP_INLINE_VISIBILITY operator type&    () const _NOEXCEPT {return *__f_;}
+    _LIBCPP_INLINE_VISIBILITY          type& get() const _NOEXCEPT {return *__f_;}
+
+    // invoke
+    template <class... _ArgTypes>
+       _LIBCPP_INLINE_VISIBILITY
+       typename __invoke_of<type&, _ArgTypes...>::type
+          operator() (_ArgTypes&&... __args) const
+          {
+              return __invoke(get(), _VSTD::forward<_ArgTypes>(__args)...);
+          }
+};
+
+template <class _Tp> struct ____is_reference_wrapper : public false_type {};
+template <class _Tp> struct ____is_reference_wrapper<reference_wrapper<_Tp> > : public true_type {};
+template <class _Tp> struct __is_reference_wrapper
+    : public ____is_reference_wrapper<typename remove_cv<_Tp>::type> {};
+
+template <class _Tp>
+inline _LIBCPP_INLINE_VISIBILITY
+reference_wrapper<_Tp>
+ref(_Tp& __t) _NOEXCEPT
+{
+    return reference_wrapper<_Tp>(__t);
+}
+
+template <class _Tp>
+inline _LIBCPP_INLINE_VISIBILITY
+reference_wrapper<_Tp>
+ref(reference_wrapper<_Tp> __t) _NOEXCEPT
+{
+    return ref(__t.get());
+}
+
+template <class _Tp>
+inline _LIBCPP_INLINE_VISIBILITY
+reference_wrapper<const _Tp>
+cref(const _Tp& __t) _NOEXCEPT
+{
+    return reference_wrapper<const _Tp>(__t);
+}
+
+template <class _Tp>
+inline _LIBCPP_INLINE_VISIBILITY
+reference_wrapper<const _Tp>
+cref(reference_wrapper<_Tp> __t) _NOEXCEPT
+{
+    return cref(__t.get());
+}
+
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#ifndef _LIBCPP_HAS_NO_DELETED_FUNCTIONS
+
+template <class _Tp> void ref(const _Tp&&) = delete;
+template <class _Tp> void cref(const _Tp&&) = delete;
+
+#else  // _LIBCPP_HAS_NO_DELETED_FUNCTIONS
+
+template <class _Tp> void ref(const _Tp&&);// = delete;
+template <class _Tp> void cref(const _Tp&&);// = delete;
+
+#endif  // _LIBCPP_HAS_NO_DELETED_FUNCTIONS
+
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+#endif  // _LIBCPP_HAS_NO_VARIADICS
+
+#if _LIBCPP_STD_VER > 11
+template <class _Tp1, class _Tp2 = void>
+struct __is_transparent
+{
+private:
+    struct __two {char __lx; char __lxx;};
+    template <class _Up> static __two __test(...);
+    template <class _Up> static char __test(typename _Up::is_transparent* = 0);
+public:
+    static const bool value = sizeof(__test<_Tp1>(0)) == 1;
+};
+#endif
+
+// allocator_arg_t
+
+struct _LIBCPP_TYPE_VIS_ONLY allocator_arg_t { };
+
+#if defined(_LIBCPP_HAS_NO_CONSTEXPR) || defined(_LIBCPP_BUILDING_MEMORY)
+extern const allocator_arg_t allocator_arg;
+#else
+constexpr allocator_arg_t allocator_arg = allocator_arg_t();
+#endif
+
+// uses_allocator
+
+template <class _Tp>
+struct __has_allocator_type
+{
+private:
+    struct __two {char __lx; char __lxx;};
+    template <class _Up> static __two __test(...);
+    template <class _Up> static char __test(typename _Up::allocator_type* = 0);
+public:
+    static const bool value = sizeof(__test<_Tp>(0)) == 1;
+};
+
+template <class _Tp, class _Alloc, bool = __has_allocator_type<_Tp>::value>
+struct __uses_allocator
+    : public integral_constant<bool,
+        is_convertible<_Alloc, typename _Tp::allocator_type>::value>
+{
+};
+
+template <class _Tp, class _Alloc>
+struct __uses_allocator<_Tp, _Alloc, false>
+    : public false_type
+{
+};
+
+template <class _Tp, class _Alloc>
+struct _LIBCPP_TYPE_VIS_ONLY uses_allocator
+    : public __uses_allocator<_Tp, _Alloc>
+{
+};
+
+#ifndef _LIBCPP_HAS_NO_VARIADICS
+
+// allocator construction
+
+template <class _Tp, class _Alloc, class ..._Args>
+struct __uses_alloc_ctor_imp
+{
+    static const bool __ua = uses_allocator<_Tp, _Alloc>::value;
+    static const bool __ic =
+        is_constructible<_Tp, allocator_arg_t, _Alloc, _Args...>::value;
+    static const int value = __ua ? 2 - __ic : 0;
+};
+
+template <class _Tp, class _Alloc, class ..._Args>
+struct __uses_alloc_ctor
+    : integral_constant<int, __uses_alloc_ctor_imp<_Tp, _Alloc, _Args...>::value>
+    {};
+
+template <class _Tp, class _Allocator, class... _Args>
+inline _LIBCPP_INLINE_VISIBILITY
+void __user_alloc_construct_impl (integral_constant<int, 0>, _Tp *__storage, const _Allocator &, _Args &&... __args )
+{
+    new (__storage) _Tp (_VSTD::forward<_Args>(__args)...);
+}
+
+template <class _Tp, class _Allocator, class... _Args>
+inline _LIBCPP_INLINE_VISIBILITY
+void __user_alloc_construct_impl (integral_constant<int, 1>, _Tp *__storage, const _Allocator &__a, _Args &&... __args )
+{
+    new (__storage) _Tp (allocator_arg, __a, _VSTD::forward<_Args>(__args)...);
+}
+
+template <class _Tp, class _Allocator, class... _Args>
+inline _LIBCPP_INLINE_VISIBILITY
+void __user_alloc_construct_impl (integral_constant<int, 2>, _Tp *__storage, const _Allocator &__a, _Args &&... __args )
+{
+    new (__storage) _Tp (_VSTD::forward<_Args>(__args)..., __a);
+}
+
+template <class _Tp, class _Allocator, class... _Args>
+inline _LIBCPP_INLINE_VISIBILITY
+void __user_alloc_construct (_Tp *__storage, const _Allocator &__a, _Args &&... __args)
+{ 
+    __user_alloc_construct_impl( 
+             __uses_alloc_ctor<_Tp, _Allocator>(), 
+             __storage, __a, _VSTD::forward<_Args>(__args)...
+        );
+}
+#endif  // _LIBCPP_HAS_NO_VARIADICS
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif  // _LIBCPP_FUNCTIONAL_BASE