[libcxx] r323971 - Remove <experimental/optional>; use <optional> instead. See https://libcxx.llvm.org/TS_deprecation.html

Marshall Clow via cfe-commits cfe-commits at lists.llvm.org
Thu Feb 1 06:54:25 PST 2018


Author: marshall
Date: Thu Feb  1 06:54:25 2018
New Revision: 323971

URL: http://llvm.org/viewvc/llvm-project?rev=323971&view=rev
Log:
Remove <experimental/optional>; use <optional> instead. See https://libcxx.llvm.org/TS_deprecation.html

Removed:
    libcxx/trunk/test/libcxx/experimental/optional/
    libcxx/trunk/test/std/experimental/optional/
Modified:
    libcxx/trunk/include/experimental/optional
    libcxx/trunk/include/module.modulemap
    libcxx/trunk/src/optional.cpp
    libcxx/trunk/test/libcxx/double_include.sh.cpp
    libcxx/trunk/test/libcxx/min_max_macros.sh.cpp

Modified: libcxx/trunk/include/experimental/optional
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/include/experimental/optional?rev=323971&r1=323970&r2=323971&view=diff
==============================================================================
--- libcxx/trunk/include/experimental/optional (original)
+++ libcxx/trunk/include/experimental/optional Thu Feb  1 06:54:25 2018
@@ -8,915 +8,4 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef _LIBCPP_EXPERIMENTAL_OPTIONAL
-#define _LIBCPP_EXPERIMENTAL_OPTIONAL
-
-/*
-    optional synopsis
-
-// C++1y
-
-namespace std { namespace experimental { inline namespace fundamentals_v1 {
-
-    // 5.3, optional for object types
-    template <class T> class optional;
-
-    // 5.4, In-place construction
-    struct in_place_t{};
-    constexpr in_place_t in_place{};
-
-    // 5.5, No-value state indicator
-    struct nullopt_t{see below};
-    constexpr nullopt_t nullopt(unspecified);
-
-    // 5.6, Class bad_optional_access
-    class bad_optional_access;
-
-    // 5.7, Relational operators
-    template <class T>
-      constexpr bool operator==(const optional<T>&, const optional<T>&);
-    template <class T>
-      constexpr bool operator!=(const optional<T>&, const optional<T>&);
-    template <class T>
-      constexpr bool operator<(const optional<T>&, const optional<T>&);
-    template <class T>
-      constexpr bool operator>(const optional<T>&, const optional<T>&);
-    template <class T>
-      constexpr bool operator<=(const optional<T>&, const optional<T>&);
-    template <class T>
-      constexpr bool operator>=(const optional<T>&, const optional<T>&);
-
-    // 5.8, Comparison with nullopt
-    template <class T> constexpr bool operator==(const optional<T>&, nullopt_t) noexcept;
-    template <class T> constexpr bool operator==(nullopt_t, const optional<T>&) noexcept;
-    template <class T> constexpr bool operator!=(const optional<T>&, nullopt_t) noexcept;
-    template <class T> constexpr bool operator!=(nullopt_t, const optional<T>&) noexcept;
-    template <class T> constexpr bool operator<(const optional<T>&, nullopt_t) noexcept;
-    template <class T> constexpr bool operator<(nullopt_t, const optional<T>&) noexcept;
-    template <class T> constexpr bool operator<=(const optional<T>&, nullopt_t) noexcept;
-    template <class T> constexpr bool operator<=(nullopt_t, const optional<T>&) noexcept;
-    template <class T> constexpr bool operator>(const optional<T>&, nullopt_t) noexcept;
-    template <class T> constexpr bool operator>(nullopt_t, const optional<T>&) noexcept;
-    template <class T> constexpr bool operator>=(const optional<T>&, nullopt_t) noexcept;
-    template <class T> constexpr bool operator>=(nullopt_t, const optional<T>&) noexcept;
-
-    // 5.9, Comparison with T
-    template <class T> constexpr bool operator==(const optional<T>&, const T&);
-    template <class T> constexpr bool operator==(const T&, const optional<T>&);
-    template <class T> constexpr bool operator!=(const optional<T>&, const T&);
-    template <class T> constexpr bool operator!=(const T&, const optional<T>&);
-    template <class T> constexpr bool operator<(const optional<T>&, const T&);
-    template <class T> constexpr bool operator<(const T&, const optional<T>&);
-    template <class T> constexpr bool operator<=(const optional<T>&, const T&);
-    template <class T> constexpr bool operator<=(const T&, const optional<T>&);
-    template <class T> constexpr bool operator>(const optional<T>&, const T&);
-    template <class T> constexpr bool operator>(const T&, const optional<T>&);
-    template <class T> constexpr bool operator>=(const optional<T>&, const T&);
-    template <class T> constexpr bool operator>=(const T&, const optional<T>&);
-
-    // 5.10, Specialized algorithms
-    template <class T> void swap(optional<T>&, optional<T>&) noexcept(see below);
-    template <class T> constexpr optional<see below> make_optional(T&&);
-
-	template <class T>
-	class optional
-	{
-	public:
-	  typedef T value_type;
-
-	  // 5.3.1, Constructors
-	  constexpr optional() noexcept;
-	  constexpr optional(nullopt_t) noexcept;
-	  optional(const optional&);
-	  optional(optional&&) noexcept(see below);
-	  constexpr optional(const T&);
-	  constexpr optional(T&&);
-	  template <class... Args> constexpr explicit optional(in_place_t, Args&&...);
-	  template <class U, class... Args>
-		constexpr explicit optional(in_place_t, initializer_list<U>, Args&&...);
-
-	  // 5.3.2, Destructor
-	  ~optional();
-
-	  // 5.3.3, Assignment
-	  optional& operator=(nullopt_t) noexcept;
-	  optional& operator=(const optional&);
-	  optional& operator=(optional&&) noexcept(see below);
-	  template <class U> optional& operator=(U&&);
-	  template <class... Args> void emplace(Args&&...);
-	  template <class U, class... Args>
-		void emplace(initializer_list<U>, Args&&...);
-
-	  // 5.3.4, Swap
-	  void swap(optional&) noexcept(see below);
-
-	  // 5.3.5, Observers
-	  constexpr T const* operator ->() const;
-	  constexpr T* operator ->();
-	  constexpr T const& operator *() const &;
-	  constexpr T& operator *() &;
-	  constexpr T&& operator *() &&;
-	  constexpr const T&& operator *() const &&;
-	  constexpr explicit operator bool() const noexcept;
-	  constexpr T const& value() const &;
-	  constexpr T& value() &;
-	  constexpr T&& value() &&;
-	  constexpr const T&& value() const &&;
-	  template <class U> constexpr T value_or(U&&) const &;
-	  template <class U> constexpr T value_or(U&&) &&;
-
-	private:
-	  T*   val;  // exposition only
-	};
-
-  } // namespace fundamentals_v1
-  } // namespace experimental
-
-  // 5.11, Hash support
-  template <class T> struct hash;
-  template <class T> struct hash<experimental::optional<T>>;
-
-} // namespace std
-
-*/
-
-#include <experimental/__config>
-#include <functional>
-#include <stdexcept>
-#if _LIBCPP_STD_VER > 11
-#include <initializer_list>
-#include <type_traits>
-#include <new>
-#include <__functional_base>
-#include <__debug>
-#endif
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-#pragma GCC system_header
-#endif
-
-_LIBCPP_PUSH_MACROS
-#include <__undef_macros>
-
-
-_LIBCPP_BEGIN_NAMESPACE_EXPERIMENTAL
-class _LIBCPP_EXCEPTION_ABI _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS bad_optional_access
-    : public std::logic_error
-{
-public:
-	bad_optional_access() : std::logic_error("Bad optional Access") {}
-
-//	Get the key function ~bad_optional_access() into the dylib
-    virtual ~bad_optional_access() _NOEXCEPT;
-};
-
-_LIBCPP_END_NAMESPACE_EXPERIMENTAL
-
-
-#if _LIBCPP_STD_VER > 11
-
-_LIBCPP_BEGIN_NAMESPACE_LFTS
-
-struct in_place_t {};
-constexpr in_place_t in_place{};
-
-struct nullopt_t
-{
-    explicit constexpr nullopt_t(int) noexcept {}
-};
-
-constexpr nullopt_t nullopt{0};
-
-template <class _Tp, bool = is_trivially_destructible<_Tp>::value>
-class __optional_storage
-{
-protected:
-    typedef _Tp value_type;
-    union
-    {
-        char __null_state_;
-        value_type __val_;
-    };
-    bool __engaged_ = false;
-
-    _LIBCPP_INLINE_VISIBILITY
-    ~__optional_storage()
-    {
-        if (__engaged_)
-            __val_.~value_type();
-    }
-
-    _LIBCPP_INLINE_VISIBILITY
-    constexpr __optional_storage() noexcept
-        :  __null_state_('\0') {}
-
-    _LIBCPP_INLINE_VISIBILITY
-    __optional_storage(const __optional_storage& __x)
-        :  __engaged_(__x.__engaged_)
-        {
-            if (__engaged_)
-                ::new((void*)_VSTD::addressof(__val_)) value_type(__x.__val_);
-        }
-
-    _LIBCPP_INLINE_VISIBILITY
-    __optional_storage(__optional_storage&& __x)
-                      noexcept(is_nothrow_move_constructible<value_type>::value)
-        :  __engaged_(__x.__engaged_)
-        {
-            if (__engaged_)
-                ::new((void*)_VSTD::addressof(__val_)) value_type(_VSTD::move(__x.__val_));
-        }
-
-    _LIBCPP_INLINE_VISIBILITY
-    constexpr __optional_storage(const value_type& __v)
-        :  __val_(__v),
-           __engaged_(true) {}
-
-    _LIBCPP_INLINE_VISIBILITY
-    constexpr __optional_storage(value_type&& __v)
-        :  __val_(_VSTD::move(__v)),
-           __engaged_(true) {}
-
-    template <class... _Args>
-    _LIBCPP_INLINE_VISIBILITY
-    constexpr
-    explicit __optional_storage(in_place_t, _Args&&... __args)
-       :  __val_(_VSTD::forward<_Args>(__args)...),
-           __engaged_(true) {}
-};
-
-template <class _Tp>
-class __optional_storage<_Tp, true>
-{
-protected:
-    typedef _Tp value_type;
-    union
-    {
-        char __null_state_;
-        value_type __val_;
-    };
-    bool __engaged_ = false;
-
-    _LIBCPP_INLINE_VISIBILITY
-    constexpr __optional_storage() noexcept
-        :  __null_state_('\0') {}
-
-    _LIBCPP_INLINE_VISIBILITY
-    __optional_storage(const __optional_storage& __x)
-        :  __engaged_(__x.__engaged_)
-        {
-            if (__engaged_)
-                ::new((void*)_VSTD::addressof(__val_)) value_type(__x.__val_);
-        }
-
-    _LIBCPP_INLINE_VISIBILITY
-    __optional_storage(__optional_storage&& __x)
-                      noexcept(is_nothrow_move_constructible<value_type>::value)
-        :  __engaged_(__x.__engaged_)
-        {
-            if (__engaged_)
-                ::new((void*)_VSTD::addressof(__val_)) value_type(_VSTD::move(__x.__val_));
-        }
-
-    _LIBCPP_INLINE_VISIBILITY
-    constexpr __optional_storage(const value_type& __v)
-        :  __val_(__v),
-           __engaged_(true) {}
-
-    _LIBCPP_INLINE_VISIBILITY
-    constexpr __optional_storage(value_type&& __v)
-        :  __val_(_VSTD::move(__v)),
-           __engaged_(true) {}
-
-    template <class... _Args>
-    _LIBCPP_INLINE_VISIBILITY
-    constexpr
-    explicit __optional_storage(in_place_t, _Args&&... __args)
-       :  __val_(_VSTD::forward<_Args>(__args)...),
-           __engaged_(true) {}
-};
-
-template <class _Tp>
-class optional
-    : private __optional_storage<_Tp>
-{
-    typedef __optional_storage<_Tp> __base;
-public:
-    typedef _Tp value_type;
-
-    static_assert(!is_reference<value_type>::value,
-              "Instantiation of optional with a reference type is ill-formed.");
-    static_assert(!is_same<typename remove_cv<value_type>::type, in_place_t>::value,
-              "Instantiation of optional with a in_place_t type is ill-formed.");
-    static_assert(!is_same<typename remove_cv<value_type>::type, nullopt_t>::value,
-              "Instantiation of optional with a nullopt_t type is ill-formed.");
-    static_assert(is_object<value_type>::value,
-        "Instantiation of optional with a non-object type is undefined behavior.");
-    static_assert(is_nothrow_destructible<value_type>::value,
-        "Instantiation of optional with an object type that is not noexcept destructible is undefined behavior.");
-
-    _LIBCPP_INLINE_VISIBILITY constexpr optional() noexcept {}
-    _LIBCPP_INLINE_VISIBILITY optional(const optional&) = default;
-    _LIBCPP_INLINE_VISIBILITY optional(optional&&) = default;
-    _LIBCPP_INLINE_VISIBILITY ~optional() = default;
-    _LIBCPP_INLINE_VISIBILITY constexpr optional(nullopt_t) noexcept {}
-    _LIBCPP_INLINE_VISIBILITY constexpr optional(const value_type& __v)
-        : __base(__v) {}
-    _LIBCPP_INLINE_VISIBILITY constexpr optional(value_type&& __v)
-        : __base(_VSTD::move(__v)) {}
-
-    template <class... _Args,
-              class = typename enable_if
-                      <
-                           is_constructible<value_type, _Args...>::value
-                      >::type
-             >
-    _LIBCPP_INLINE_VISIBILITY
-    constexpr
-    explicit optional(in_place_t, _Args&&... __args)
-        : __base(in_place, _VSTD::forward<_Args>(__args)...) {}
-
-    template <class _Up, class... _Args,
-              class = typename enable_if
-                      <
-                           is_constructible<value_type, initializer_list<_Up>&, _Args...>::value
-                      >::type
-             >
-    _LIBCPP_INLINE_VISIBILITY
-    constexpr
-    explicit optional(in_place_t, initializer_list<_Up> __il, _Args&&... __args)
-        : __base(in_place, __il, _VSTD::forward<_Args>(__args)...) {}
-
-    _LIBCPP_INLINE_VISIBILITY
-    optional& operator=(nullopt_t) noexcept
-    {
-        if (this->__engaged_)
-        {
-            this->__val_.~value_type();
-            this->__engaged_ = false;
-        }
-        return *this;
-    }
-
-    _LIBCPP_INLINE_VISIBILITY
-    optional&
-    operator=(const optional& __opt)
-    {
-        if (this->__engaged_ == __opt.__engaged_)
-        {
-            if (this->__engaged_)
-                this->__val_ = __opt.__val_;
-        }
-        else
-        {
-            if (this->__engaged_)
-                this->__val_.~value_type();
-            else
-                ::new((void*)_VSTD::addressof(this->__val_)) value_type(__opt.__val_);
-            this->__engaged_ = __opt.__engaged_;
-        }
-        return *this;
-    }
-
-    _LIBCPP_INLINE_VISIBILITY
-    optional&
-    operator=(optional&& __opt)
-        noexcept(is_nothrow_move_assignable<value_type>::value &&
-                 is_nothrow_move_constructible<value_type>::value)
-    {
-        if (this->__engaged_ == __opt.__engaged_)
-        {
-            if (this->__engaged_)
-                this->__val_ = _VSTD::move(__opt.__val_);
-        }
-        else
-        {
-            if (this->__engaged_)
-                this->__val_.~value_type();
-            else
-                ::new((void*)_VSTD::addressof(this->__val_))
-                    value_type(_VSTD::move(__opt.__val_));
-            this->__engaged_ = __opt.__engaged_;
-        }
-        return *this;
-    }
-
-    template <class _Up,
-              class = typename enable_if
-                      <
-                          is_same<typename remove_reference<_Up>::type, value_type>::value &&
-                          is_constructible<value_type, _Up>::value &&
-                          is_assignable<value_type&, _Up>::value
-                      >::type
-             >
-    _LIBCPP_INLINE_VISIBILITY
-    optional&
-    operator=(_Up&& __v)
-    {
-        if (this->__engaged_)
-            this->__val_ = _VSTD::forward<_Up>(__v);
-        else
-        {
-            ::new((void*)_VSTD::addressof(this->__val_)) value_type(_VSTD::forward<_Up>(__v));
-            this->__engaged_ = true;
-        }
-        return *this;
-    }
-
-    template <class... _Args,
-              class = typename enable_if
-                      <
-                          is_constructible<value_type, _Args...>::value
-                      >::type
-             >
-    _LIBCPP_INLINE_VISIBILITY
-    void
-    emplace(_Args&&... __args)
-    {
-        *this = nullopt;
-        ::new((void*)_VSTD::addressof(this->__val_))
-            value_type(_VSTD::forward<_Args>(__args)...);
-        this->__engaged_ = true;
-    }
-
-    template <class _Up, class... _Args,
-              class = typename enable_if
-                      <
-                          is_constructible<value_type, initializer_list<_Up>&, _Args...>::value
-                      >::type
-             >
-    _LIBCPP_INLINE_VISIBILITY
-    void
-    emplace(initializer_list<_Up> __il, _Args&&... __args)
-    {
-        *this = nullopt;
-        ::new((void*)_VSTD::addressof(this->__val_))
-            value_type(__il, _VSTD::forward<_Args>(__args)...);
-        this->__engaged_ = true;
-    }
-
-    _LIBCPP_INLINE_VISIBILITY
-    void
-    swap(optional& __opt)
-        noexcept(is_nothrow_move_constructible<value_type>::value &&
-                 __is_nothrow_swappable<value_type>::value)
-    {
-        using _VSTD::swap;
-        if (this->__engaged_ == __opt.__engaged_)
-        {
-            if (this->__engaged_)
-                swap(this->__val_, __opt.__val_);
-        }
-        else
-        {
-            if (this->__engaged_)
-            {
-                ::new((void*)_VSTD::addressof(__opt.__val_))
-                    value_type(_VSTD::move(this->__val_));
-                this->__val_.~value_type();
-            }
-            else
-            {
-                ::new((void*)_VSTD::addressof(this->__val_))
-                    value_type(_VSTD::move(__opt.__val_));
-                __opt.__val_.~value_type();
-            }
-            swap(this->__engaged_, __opt.__engaged_);
-        }
-    }
-
-    _LIBCPP_INLINE_VISIBILITY
-    constexpr
-    value_type const*
-    operator->() const
-    {
-        _LIBCPP_ASSERT(this->__engaged_, "optional operator-> called for disengaged value");
-#ifndef _LIBCPP_HAS_NO_BUILTIN_ADDRESSOF
-        return __builtin_addressof(this->__val_);
-#else
-        return __operator_arrow(__has_operator_addressof<value_type>{});
-#endif
-    }
-
-    _LIBCPP_INLINE_VISIBILITY
-    value_type*
-    operator->()
-    {
-        _LIBCPP_ASSERT(this->__engaged_, "optional operator-> called for disengaged value");
-        return _VSTD::addressof(this->__val_);
-    }
-
-    _LIBCPP_INLINE_VISIBILITY
-    constexpr
-    const value_type&
-    operator*() const
-    {
-        _LIBCPP_ASSERT(this->__engaged_, "optional operator* called for disengaged value");
-        return this->__val_;
-    }
-
-    _LIBCPP_INLINE_VISIBILITY
-    value_type&
-    operator*()
-    {
-        _LIBCPP_ASSERT(this->__engaged_, "optional operator* called for disengaged value");
-        return this->__val_;
-    }
-
-    _LIBCPP_INLINE_VISIBILITY
-    constexpr explicit operator bool() const noexcept {return this->__engaged_;}
-
-	_LIBCPP_NORETURN _LIBCPP_INLINE_VISIBILITY 
-#ifndef _LIBCPP_NO_EXCEPTIONS
-_LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS
-#endif
-	constexpr void __throw_bad_optional_access() const
-	{
-#ifndef _LIBCPP_NO_EXCEPTIONS
-        throw bad_optional_access();
-#else
-        _VSTD::abort();
-#endif
-	}
-	
-    _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS
-    constexpr value_type const& value() const
-    {
-        if (!this->__engaged_)
-            __throw_bad_optional_access();
-        return this->__val_;
-    }
-
-    _LIBCPP_INLINE_VISIBILITY _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS
-    value_type& value()
-    {
-        if (!this->__engaged_)
-            __throw_bad_optional_access();
-        return this->__val_;
-    }
-
-    template <class _Up>
-    _LIBCPP_INLINE_VISIBILITY
-    constexpr value_type value_or(_Up&& __v) const&
-    {
-        static_assert(is_copy_constructible<value_type>::value,
-                      "optional<T>::value_or: T must be copy constructible");
-        static_assert(is_convertible<_Up, value_type>::value,
-                      "optional<T>::value_or: U must be convertible to T");
-        return this->__engaged_ ? this->__val_ :
-                                  static_cast<value_type>(_VSTD::forward<_Up>(__v));
-    }
-
-    template <class _Up>
-    _LIBCPP_INLINE_VISIBILITY
-    value_type value_or(_Up&& __v) &&
-    {
-        static_assert(is_move_constructible<value_type>::value,
-                      "optional<T>::value_or: T must be move constructible");
-        static_assert(is_convertible<_Up, value_type>::value,
-                      "optional<T>::value_or: U must be convertible to T");
-        return this->__engaged_ ? _VSTD::move(this->__val_) :
-                                  static_cast<value_type>(_VSTD::forward<_Up>(__v));
-    }
-
-private:
-    _LIBCPP_INLINE_VISIBILITY
-    value_type const*
-    __operator_arrow(true_type) const
-    {
-        return _VSTD::addressof(this->__val_);
-    }
-
-    _LIBCPP_INLINE_VISIBILITY
-    constexpr
-    value_type const*
-    __operator_arrow(false_type) const
-    {
-        return &this->__val_;
-    }
-};
-
-// Comparisons between optionals
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator==(const optional<_Tp>& __x, const optional<_Tp>& __y)
-{
-    if (static_cast<bool>(__x) != static_cast<bool>(__y))
-        return false;
-    if (!static_cast<bool>(__x))
-        return true;
-    return *__x == *__y;
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator!=(const optional<_Tp>& __x, const optional<_Tp>& __y)
-{
-    return !(__x == __y);
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator<(const optional<_Tp>& __x, const optional<_Tp>& __y)
-{
-    if (!static_cast<bool>(__y))
-        return false;
-    if (!static_cast<bool>(__x))
-        return true;
-    return *__x < *__y;
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator>(const optional<_Tp>& __x, const optional<_Tp>& __y)
-{
-    return __y < __x;
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator<=(const optional<_Tp>& __x, const optional<_Tp>& __y)
-{
-    return !(__y < __x);
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator>=(const optional<_Tp>& __x, const optional<_Tp>& __y)
-{
-    return !(__x < __y);
-}
-
-
-// Comparisons with nullopt
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator==(const optional<_Tp>& __x, nullopt_t) noexcept
-{
-    return !static_cast<bool>(__x);
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator==(nullopt_t, const optional<_Tp>& __x) noexcept
-{
-    return !static_cast<bool>(__x);
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator!=(const optional<_Tp>& __x, nullopt_t) noexcept
-{
-    return static_cast<bool>(__x);
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator!=(nullopt_t, const optional<_Tp>& __x) noexcept
-{
-    return static_cast<bool>(__x);
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator<(const optional<_Tp>&, nullopt_t) noexcept
-{
-    return false;
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator<(nullopt_t, const optional<_Tp>& __x) noexcept
-{
-    return static_cast<bool>(__x);
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator<=(const optional<_Tp>& __x, nullopt_t) noexcept
-{
-    return !static_cast<bool>(__x);
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator<=(nullopt_t, const optional<_Tp>&) noexcept
-{
-    return true;
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator>(const optional<_Tp>& __x, nullopt_t) noexcept
-{
-    return static_cast<bool>(__x);
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator>(nullopt_t, const optional<_Tp>&) noexcept
-{
-    return false;
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator>=(const optional<_Tp>&, nullopt_t) noexcept
-{
-    return true;
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator>=(nullopt_t, const optional<_Tp>& __x) noexcept
-{
-    return !static_cast<bool>(__x);
-}
-
-// Comparisons with T
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator==(const optional<_Tp>& __x, const _Tp& __v)
-{
-    return static_cast<bool>(__x) ? *__x == __v : false;
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator==(const _Tp& __v, const optional<_Tp>& __x)
-{
-    return static_cast<bool>(__x) ? *__x == __v : false;
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator!=(const optional<_Tp>& __x, const _Tp& __v)
-{
-    return static_cast<bool>(__x) ? !(*__x == __v) : true;
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator!=(const _Tp& __v, const optional<_Tp>& __x)
-{
-    return static_cast<bool>(__x) ? !(*__x == __v) : true;
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator<(const optional<_Tp>& __x, const _Tp& __v)
-{
-    return static_cast<bool>(__x) ? less<_Tp>{}(*__x, __v) : true;
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator<(const _Tp& __v, const optional<_Tp>& __x)
-{
-    return static_cast<bool>(__x) ? less<_Tp>{}(__v, *__x) : false;
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator<=(const optional<_Tp>& __x, const _Tp& __v)
-{
-    return !(__x > __v);
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator<=(const _Tp& __v, const optional<_Tp>& __x)
-{
-    return !(__v > __x);
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator>(const optional<_Tp>& __x, const _Tp& __v)
-{
-    return static_cast<bool>(__x) ? __v < __x : false;
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator>(const _Tp& __v, const optional<_Tp>& __x)
-{
-    return static_cast<bool>(__x) ? __x < __v : true;
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator>=(const optional<_Tp>& __x, const _Tp& __v)
-{
-    return !(__x < __v);
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-bool
-operator>=(const _Tp& __v, const optional<_Tp>& __x)
-{
-    return !(__v < __x);
-}
-
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-void
-swap(optional<_Tp>& __x, optional<_Tp>& __y) noexcept(noexcept(__x.swap(__y)))
-{
-    __x.swap(__y);
-}
-
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr
-optional<typename decay<_Tp>::type>
-make_optional(_Tp&& __v)
-{
-    return optional<typename decay<_Tp>::type>(_VSTD::forward<_Tp>(__v));
-}
-
-_LIBCPP_END_NAMESPACE_LFTS
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _Tp>
-struct _LIBCPP_TEMPLATE_VIS hash<std::experimental::optional<_Tp> >
-{
-    typedef std::experimental::optional<_Tp> argument_type;
-    typedef size_t        result_type;
-
-    _LIBCPP_INLINE_VISIBILITY
-    result_type operator()(const argument_type& __opt) const _NOEXCEPT
-    {
-        return static_cast<bool>(__opt) ? hash<_Tp>()(*__opt) : 0;
-    }
-};
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif  // _LIBCPP_STD_VER > 11
-
-_LIBCPP_POP_MACROS
-
-#endif  // _LIBCPP_EXPERIMENTAL_OPTIONAL
+#error "<experimental/optional> has been removed. Use <optional> instead."

Modified: libcxx/trunk/include/module.modulemap
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/include/module.modulemap?rev=323971&r1=323970&r2=323971&view=diff
==============================================================================
--- libcxx/trunk/include/module.modulemap (original)
+++ libcxx/trunk/include/module.modulemap Thu Feb  1 06:54:25 2018
@@ -546,10 +546,6 @@ module std [system] {
       header "experimental/numeric"
       export *
     }
-    module optional {
-      header "experimental/optional"
-      export *
-    }
     module propagate_const {
       header "experimental/propagate_const"
       export *

Modified: libcxx/trunk/src/optional.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/src/optional.cpp?rev=323971&r1=323970&r2=323971&view=diff
==============================================================================
--- libcxx/trunk/src/optional.cpp (original)
+++ libcxx/trunk/src/optional.cpp Thu Feb  1 06:54:25 2018
@@ -8,7 +8,6 @@
 //===----------------------------------------------------------------------===//
 
 #include "optional"
-#include "experimental/optional"
 
 namespace std
 {
@@ -21,8 +20,3 @@ const char* bad_optional_access::what()
 
 } // std
 
-_LIBCPP_BEGIN_NAMESPACE_EXPERIMENTAL
-
-bad_optional_access::~bad_optional_access() _NOEXCEPT = default;
-
-_LIBCPP_END_NAMESPACE_EXPERIMENTAL

Modified: libcxx/trunk/test/libcxx/double_include.sh.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/libcxx/double_include.sh.cpp?rev=323971&r1=323970&r2=323971&view=diff
==============================================================================
--- libcxx/trunk/test/libcxx/double_include.sh.cpp (original)
+++ libcxx/trunk/test/libcxx/double_include.sh.cpp Thu Feb  1 06:54:25 2018
@@ -150,7 +150,6 @@
 #include <experimental/map>
 #include <experimental/memory_resource>
 #include <experimental/numeric>
-#include <experimental/optional>
 #include <experimental/propagate_const>
 #include <experimental/ratio>
 #include <experimental/regex>

Modified: libcxx/trunk/test/libcxx/min_max_macros.sh.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/libcxx/min_max_macros.sh.cpp?rev=323971&r1=323970&r2=323971&view=diff
==============================================================================
--- libcxx/trunk/test/libcxx/min_max_macros.sh.cpp (original)
+++ libcxx/trunk/test/libcxx/min_max_macros.sh.cpp Thu Feb  1 06:54:25 2018
@@ -261,8 +261,6 @@ TEST_MACROS();
 TEST_MACROS();
 #include <experimental/numeric>
 TEST_MACROS();
-#include <experimental/optional>
-TEST_MACROS();
 #include <experimental/propagate_const>
 TEST_MACROS();
 #include <experimental/ratio>




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