EIC code displayed by LXR master/​include/​boost/​move/​unique_ptr.hpp	Source navigation Diff markup Identifier search General search
	Version: master test Revert   Change

File indexing completed on 2025-01-30 09:46:50

 //////////////////////////////////////////////////////////////////////////////
 //
 // (C) Copyright Ion Gaztanaga 2014-2014. Distributed under the Boost
 // Software License, Version 1.0. (See accompanying file
 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 //
 // See http://www.boost.org/libs/move for documentation.
 //
 //////////////////////////////////////////////////////////////////////////////
 
 #ifndef BOOST_MOVE_UNIQUE_PTR_HPP_INCLUDED
 #define BOOST_MOVE_UNIQUE_PTR_HPP_INCLUDED
 
 #ifndef BOOST_CONFIG_HPP
 #  include <boost/config.hpp>
 #endif
 #
 #if defined(BOOST_HAS_PRAGMA_ONCE)
 #  pragma once
 #endif
 
 #include <boost/move/detail/config_begin.hpp>
 #include <boost/move/detail/workaround.hpp>  //forceinline
 #include <boost/move/detail/unique_ptr_meta_utils.hpp>
 #include <boost/move/default_delete.hpp>
 #include <boost/move/utility_core.hpp>
 #include <boost/move/adl_move_swap.hpp>
 #include <cassert>
 
 #include <cstddef>   //For std::nullptr_t and std::size_t
 
 //!\file
 //! Describes the smart pointer unique_ptr, a drop-in replacement for std::unique_ptr,
 //! usable also from C++03 compilers.
 //!
 //! Main differences from std::unique_ptr to avoid heavy dependencies,
 //! specially in C++03 compilers:
 //!   - <tt>operator < </tt> uses pointer <tt>operator < </tt>instead of <tt>std::less<common_type></tt>. 
 //!      This avoids dependencies on <tt>std::common_type</tt> and <tt>std::less</tt>
 //!      (<tt><type_traits>/<functional></tt> headers). In C++03 this avoid pulling Boost.Typeof and other
 //!      cascading dependencies. As in all Boost platforms <tt>operator <</tt> on raw pointers and
 //!      other smart pointers provides strict weak ordering in practice this should not be a problem for users.
 //!   - assignable from literal 0 for compilers without nullptr
 //!   - <tt>unique_ptr<T[]></tt> is constructible and assignable from <tt>unique_ptr<U[]></tt> if
 //!      cv-less T and cv-less U are the same type and T is more CV qualified than U.
 
 namespace boost{
 // @cond
 namespace move_upd {
 
 ////////////////////////////////////////////
 //          deleter types
 ////////////////////////////////////////////
 #if defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
 template <class T>
 class is_noncopyable
 {
    typedef char true_t;
    class false_t { char dummy[2]; };
    template<class U> static false_t dispatch(...);
    template<class U> static true_t  dispatch(typename U::boost_move_no_copy_constructor_or_assign*);
    public:
    static const bool value = sizeof(dispatch<T>(0)) == sizeof(true_t);
 };
 #endif   //defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
 
 template <class D>
 struct deleter_types
 {
    typedef typename bmupmu::add_lvalue_reference<D>::type            del_ref;
    typedef typename bmupmu::add_const_lvalue_reference<D>::type      del_cref;
    #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
    typedef typename bmupmu::if_c
       < bmupmu::is_lvalue_reference<D>::value, D, del_cref >::type   deleter_arg_type1;
    typedef typename bmupmu::remove_reference<D>::type &&             deleter_arg_type2;
    #else
    typedef typename bmupmu::if_c
       < is_noncopyable<D>::value, bmupmu::nat, del_cref>::type       non_ref_deleter_arg1;
    typedef typename bmupmu::if_c< bmupmu::is_lvalue_reference<D>::value
                        , D, non_ref_deleter_arg1 >::type          deleter_arg_type1;
    typedef ::boost::rv<D> &                                       deleter_arg_type2;
    #endif
 };
 
 ////////////////////////////////////////////
 //          unique_ptr_data
 ////////////////////////////////////////////
 template <class P, class D, bool = bmupmu::is_unary_function<D>::value || bmupmu::is_reference<D>::value >
 struct unique_ptr_data
 {
    typedef typename deleter_types<D>::deleter_arg_type1  deleter_arg_type1;
    typedef typename deleter_types<D>::del_ref            del_ref;
    typedef typename deleter_types<D>::del_cref           del_cref;
 
    BOOST_MOVE_FORCEINLINE unique_ptr_data() BOOST_NOEXCEPT
       : m_p(), d()
    {}
 
    BOOST_MOVE_FORCEINLINE explicit unique_ptr_data(P p) BOOST_NOEXCEPT
       : m_p(p), d()
    {}
 
    BOOST_MOVE_FORCEINLINE unique_ptr_data(P p, deleter_arg_type1 d1) BOOST_NOEXCEPT
       : m_p(p), d(d1)
    {}
 
    template <class U>
    BOOST_MOVE_FORCEINLINE unique_ptr_data(P p, BOOST_FWD_REF(U) d1) BOOST_NOEXCEPT
       : m_p(p), d(::boost::forward<U>(d1))
    {}
 
    BOOST_MOVE_FORCEINLINE del_ref deleter()       { return d; }
    BOOST_MOVE_FORCEINLINE del_cref deleter() const{ return d; }
 
    P m_p;
    D d;
 
    private:
    unique_ptr_data& operator=(const unique_ptr_data&);
    unique_ptr_data(const unique_ptr_data&);
 };
 
 template <class P, class D>
 struct unique_ptr_data<P, D, false>
    : private D
 {
    typedef typename deleter_types<D>::deleter_arg_type1  deleter_arg_type1;
    typedef typename deleter_types<D>::del_ref            del_ref;
    typedef typename deleter_types<D>::del_cref           del_cref;
 
    BOOST_MOVE_FORCEINLINE unique_ptr_data() BOOST_NOEXCEPT
       : D(), m_p()
    {}
 
    BOOST_MOVE_FORCEINLINE explicit unique_ptr_data(P p) BOOST_NOEXCEPT
       : D(), m_p(p)
    {}
 
    BOOST_MOVE_FORCEINLINE unique_ptr_data(P p, deleter_arg_type1 d1) BOOST_NOEXCEPT
       : D(d1), m_p(p)
    {}
 
    template <class U>
    BOOST_MOVE_FORCEINLINE unique_ptr_data(P p, BOOST_FWD_REF(U) d) BOOST_NOEXCEPT
       : D(::boost::forward<U>(d)), m_p(p)
    {}
 
    BOOST_MOVE_FORCEINLINE del_ref deleter()        BOOST_NOEXCEPT   {  return static_cast<del_ref>(*this);   }
    BOOST_MOVE_FORCEINLINE del_cref deleter() const BOOST_NOEXCEPT   {  return static_cast<del_cref>(*this);  }
 
    P m_p;
 
    private:
    unique_ptr_data& operator=(const unique_ptr_data&);
    unique_ptr_data(const unique_ptr_data&);
 };
 
 ////////////////////////////////////////////
 //          is_unique_ptr_convertible
 ////////////////////////////////////////////
 
 //Although non-standard, we avoid using pointer_traits
 //to avoid heavy dependencies
 template <typename T>
 struct get_element_type
 {
    struct DefaultWrap { typedef bmupmu::natify<T> element_type; };
    template <typename X>   static char test(int, typename X::element_type*);
    template <typename X>   static int test(...);
    static const bool value = (1 == sizeof(test<T>(0, 0)));
    typedef typename bmupmu::if_c<value, T, DefaultWrap>::type::element_type type;
 };
 
 template<class T>
 struct get_element_type<T*>
 {
    typedef T type;
 };
 
 template<class T>
 struct get_cvelement
    : bmupmu::remove_cv<typename get_element_type<T>::type>
 {};
 
 template <class P1, class P2>
 struct is_same_cvelement_and_convertible
 {
    typedef typename bmupmu::remove_reference<P1>::type arg1;
    typedef typename bmupmu::remove_reference<P2>::type arg2;
    static const bool same_cvless =
       bmupmu::is_same<typename get_cvelement<arg1>::type,typename get_cvelement<arg2>::type>::value;
    static const bool value = same_cvless && bmupmu::is_convertible<arg1, arg2>::value;
 };
 
 template<bool IsArray, class FromPointer, class ThisPointer>
 struct is_unique_ptr_convertible
    : is_same_cvelement_and_convertible<FromPointer, ThisPointer>
 {};
 
 template<class FromPointer, class ThisPointer>
 struct is_unique_ptr_convertible<false, FromPointer, ThisPointer>
    : bmupmu::is_convertible<FromPointer, ThisPointer>
 {};
 
 ////////////////////////////////////////
 ////     enable_up_moveconv_assign
 ////////////////////////////////////////
 
 template<class T, class FromPointer, class ThisPointer, class Type = bmupmu::nat>
 struct enable_up_ptr
    : bmupmu::enable_if_c< is_unique_ptr_convertible
       < bmupmu::is_array<T>::value, FromPointer, ThisPointer>::value, Type>
 {};
 
 ////////////////////////////////////////
 ////     enable_up_moveconv_assign
 ////////////////////////////////////////
 
 template<class T, class D, class U, class E>
 struct unique_moveconvert_assignable
 {
    static const bool t_is_array = bmupmu::is_array<T>::value;
    static const bool value =
       t_is_array == bmupmu::is_array<U>::value &&
       bmupmu::extent<T>::value == bmupmu::extent<U>::value &&
       is_unique_ptr_convertible
          < t_is_array
          , typename bmupmu::pointer_type<U, E>::type, typename bmupmu::pointer_type<T, D>::type
          >::value;
 };
 
 template<class T, class D, class U, class E, std::size_t N>
 struct unique_moveconvert_assignable<T[], D, U[N], E>
    : unique_moveconvert_assignable<T[], D, U[], E>
 {};
 
 template<class T, class D, class U, class E, class Type = bmupmu::nat>
 struct enable_up_moveconv_assign
    : bmupmu::enable_if_c<unique_moveconvert_assignable<T, D, U, E>::value, Type>
 {};
 
 ////////////////////////////////////////
 ////     enable_up_moveconv_constr
 ////////////////////////////////////////
 
 template<class D, class E, bool IsReference = bmupmu::is_reference<D>::value>
 struct unique_deleter_is_initializable
    : bmupmu::is_same<D, E>
 {};
 
 template <class T, class U>
 class is_rvalue_convertible
 {
    #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
    typedef typename bmupmu::remove_reference<T>::type&& t_from;
    #else
    typedef typename bmupmu::if_c
       < ::boost::has_move_emulation_enabled<T>::value && !bmupmu::is_reference<T>::value
       , ::boost::rv<T>&
       , typename bmupmu::add_lvalue_reference<T>::type
       >::type t_from;
    #endif
 
    typedef char true_t;
    class false_t { char dummy[2]; };
    static false_t dispatch(...);
    static true_t  dispatch(U);
    static t_from trigger();
    public:
    static const bool value = sizeof(dispatch(trigger())) == sizeof(true_t);
 };
 
 template<class D, class E>
 struct unique_deleter_is_initializable<D, E, false>
 {
    #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
    //Clang has some problems with is_rvalue_convertible with non-copyable types
    //so use intrinsic if available
    #if defined(BOOST_CLANG)
       #if __has_feature(is_convertible_to)
       static const bool value = __is_convertible_to(E, D);
       #else
       static const bool value = is_rvalue_convertible<E, D>::value;
       #endif
    #else
    static const bool value = is_rvalue_convertible<E, D>::value;
    #endif
 
    #else //!defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
    //No hope for compilers with move emulation for now. In several compilers is_convertible
    // leads to errors, so just move the Deleter and see if the conversion works
    static const bool value = true;  /*is_rvalue_convertible<E, D>::value*/
    #endif
 };
 
 template<class T, class D, class U, class E, class Type = bmupmu::nat>
 struct enable_up_moveconv_constr
    : bmupmu::enable_if_c
       < unique_moveconvert_assignable<T, D, U, E>::value && unique_deleter_is_initializable<D, E>::value
       , Type>
 {};
 
 }  //namespace move_upd {
 // @endcond
 
 namespace movelib {
 
 //! A unique pointer is an object that owns another object and
 //! manages that other object through a pointer.
 //! 
 //! More precisely, a unique pointer is an object u that stores a pointer to a second object p and will dispose
 //! of p when u is itself destroyed (e.g., when leaving block scope). In this context, u is said to own p.
 //! 
 //! The mechanism by which u disposes of p is known as p's associated deleter, a function object whose correct
 //! invocation results in p's appropriate disposition (typically its deletion).
 //! 
 //! Let the notation u.p denote the pointer stored by u, and let u.d denote the associated deleter. Upon request,
 //! u can reset (replace) u.p and u.d with another pointer and deleter, but must properly dispose of its owned
 //! object via the associated deleter before such replacement is considered completed.
 //! 
 //! Additionally, u can, upon request, transfer ownership to another unique pointer u2. Upon completion of
 //! such a transfer, the following postconditions hold:
 //!   - u2.p is equal to the pre-transfer u.p,
 //!   - u.p is equal to nullptr, and
 //!   - if the pre-transfer u.d maintained state, such state has been transferred to u2.d.
 //! 
 //! As in the case of a reset, u2 must properly dispose of its pre-transfer owned object via the pre-transfer
 //! associated deleter before the ownership transfer is considered complete.
 //! 
 //! Each object of a type U instantiated from the unique_ptr template specified in this subclause has the strict
 //! ownership semantics, specified above, of a unique pointer. In partial satisfaction of these semantics, each
 //! such U is MoveConstructible and MoveAssignable, but is not CopyConstructible nor CopyAssignable.
 //! The template parameter T of unique_ptr may be an incomplete type.
 //! 
 //! The uses of unique_ptr include providing exception safety for dynamically allocated memory, passing
 //! ownership of dynamically allocated memory to a function, and returning dynamically allocated memory from
 //! a function.
 //!
 //! If T is an array type (e.g. unique_ptr<MyType[]>) the interface is slightly altered:
 //!   - Pointers to types derived from T are rejected by the constructors, and by reset.
 //!   - The observers <tt>operator*</tt> and <tt>operator-></tt> are not provided.
 //!   - The indexing observer <tt>operator[]</tt> is provided.
 //!
 //! \tparam T Provides the type of the stored pointer.
 //! \tparam D The deleter type:
 //!   -  The default type for the template parameter D is default_delete. A client-supplied template argument
 //!      D shall be a function object type, lvalue-reference to function, or lvalue-reference to function object type
 //!      for which, given a value d of type D and a value ptr of type unique_ptr<T, D>::pointer, the expression
 //!      d(ptr) is valid and has the effect of disposing of the pointer as appropriate for that deleter.
 //!   -  If the deleter's type D is not a reference type, D shall satisfy the requirements of Destructible.
 //!   -  If the type <tt>remove_reference<D>::type::pointer</tt> exists, it shall satisfy the requirements of NullablePointer.
 template <class T, class D = default_delete<T> >
 class unique_ptr
 {
    #if defined(BOOST_MOVE_DOXYGEN_INVOKED)
    public:
    unique_ptr(const unique_ptr&) = delete;
    unique_ptr& operator=(const unique_ptr&) = delete;
    private:
    #else
    BOOST_MOVABLE_BUT_NOT_COPYABLE(unique_ptr)
 
    typedef bmupmu::pointer_type<T, D >                            pointer_type_obtainer;
    typedef bmupd::unique_ptr_data
       <typename pointer_type_obtainer::type, D>                data_type;
    typedef typename bmupd::deleter_types<D>::deleter_arg_type1 deleter_arg_type1;
    typedef typename bmupd::deleter_types<D>::deleter_arg_type2 deleter_arg_type2;
    data_type m_data;
    #endif
 
    public:
    //! If the type <tt>remove_reference<D>::type::pointer</tt> exists, then it shall be a
    //! synonym for <tt>remove_reference<D>::type::pointer</tt>. Otherwise it shall be a
    //! synonym for T*.
    typedef typename BOOST_MOVE_SEEDOC(pointer_type_obtainer::type) pointer;
    //! If T is an array type, then element_type is equal to T. Otherwise, if T is a type
    //! in the form U[], element_type is equal to U.
    typedef typename BOOST_MOVE_SEEDOC(bmupmu::remove_extent<T>::type) element_type;
    typedef D deleter_type;
 
    //! <b>Requires</b>: D shall satisfy the requirements of DefaultConstructible, and
    //!   that construction shall not throw an exception.
    //!
    //! <b>Effects</b>: Constructs a unique_ptr object that owns nothing, value-initializing the
    //!   stored pointer and the stored deleter.
    //!
    //! <b>Postconditions</b>: <tt>get() == nullptr</tt>. <tt>get_deleter()</tt> returns a reference to the stored deleter.
    //!
    //! <b>Remarks</b>: If this constructor is instantiated with a pointer type or reference type
    //!   for the template argument D, the program is ill-formed.   
    BOOST_MOVE_FORCEINLINE BOOST_CONSTEXPR unique_ptr() BOOST_NOEXCEPT
       : m_data()
    {
       //If this constructor is instantiated with a pointer type or reference type
       //for the template argument D, the program is ill-formed.
       BOOST_MOVE_STATIC_ASSERT(!bmupmu::is_pointer<D>::value);
       BOOST_MOVE_STATIC_ASSERT(!bmupmu::is_reference<D>::value);
    }
 
    //! <b>Effects</b>: Same as <tt>unique_ptr()</tt> (default constructor).
    //! 
    BOOST_MOVE_FORCEINLINE BOOST_CONSTEXPR unique_ptr(BOOST_MOVE_DOC0PTR(bmupd::nullptr_type)) BOOST_NOEXCEPT
       : m_data()
    {
       //If this constructor is instantiated with a pointer type or reference type
       //for the template argument D, the program is ill-formed.
       BOOST_MOVE_STATIC_ASSERT(!bmupmu::is_pointer<D>::value);
       BOOST_MOVE_STATIC_ASSERT(!bmupmu::is_reference<D>::value);
    }
 
    //! <b>Requires</b>: D shall satisfy the requirements of DefaultConstructible, and
    //!   that construction shall not throw an exception.
    //!
    //! <b>Effects</b>: Constructs a unique_ptr which owns p, initializing the stored pointer 
    //!   with p and value initializing the stored deleter.
    //!
    //! <b>Postconditions</b>: <tt>get() == p</tt>. <tt>get_deleter()</tt> returns a reference to the stored deleter.
    //!
    //! <b>Remarks</b>: If this constructor is instantiated with a pointer type or reference type
    //!   for the template argument D, the program is ill-formed.
    //!   This constructor shall not participate in overload resolution unless:
    //!      - If T is not an array type and Pointer is implicitly convertible to pointer.
    //!      - If T is an array type and Pointer is a more CV qualified pointer to element_type.
    template<class Pointer>
    BOOST_MOVE_FORCEINLINE explicit unique_ptr(Pointer p
       BOOST_MOVE_DOCIGN(BOOST_MOVE_I typename bmupd::enable_up_ptr<T BOOST_MOVE_I Pointer BOOST_MOVE_I pointer>::type* =0)
                  ) BOOST_NOEXCEPT
       : m_data(p)
    {
       //If T is not an array type, element_type_t<Pointer> derives from T
       //it uses the default deleter and T has no virtual destructor, then you have a problem
       BOOST_MOVE_STATIC_ASSERT(( !bmupd::missing_virtual_destructor
                             <D, typename bmupd::get_element_type<Pointer>::type>::value ));
       //If this constructor is instantiated with a pointer type or reference type
       //for the template argument D, the program is ill-formed.
       BOOST_MOVE_STATIC_ASSERT(!bmupmu::is_pointer<D>::value);
       BOOST_MOVE_STATIC_ASSERT(!bmupmu::is_reference<D>::value);
    }
 
    //!The signature of this constructor depends upon whether D is a reference type.
    //!   - If D is non-reference type A, then the signature is <tt>unique_ptr(pointer p, const A& d)</tt>.
    //!   - If D is an lvalue-reference type A&, then the signature is <tt>unique_ptr(pointer p, A& d)</tt>.
    //!   - If D is an lvalue-reference type const A&, then the signature is <tt>unique_ptr(pointer p, const A& d)</tt>.
    //!
    //!
    //! <b>Requires</b>: Either
    //!   - D is not an lvalue-reference type and d is an lvalue or const rvalue. 
    //!         D shall satisfy the requirements of CopyConstructible, and the copy constructor of D
    //!         shall not throw an exception. This unique_ptr will hold a copy of d.
    //!   - D is an lvalue-reference type and d is an lvalue. the type which D references need not be CopyConstructible nor
    //!      MoveConstructible. This unique_ptr will hold a D which refers to the lvalue d.
    //!
    //! <b>Effects</b>: Constructs a unique_ptr object which owns p, initializing the stored pointer with p and
    //!   initializing the deleter as described above.
    //! 
    //! <b>Postconditions</b>: <tt>get() == p</tt>. <tt>get_deleter()</tt> returns a reference to the stored deleter. If D is a
    //!   reference type then <tt>get_deleter()</tt> returns a reference to the lvalue d.
    //!
    //! <b>Remarks</b>: This constructor shall not participate in overload resolution unless:
    //!      - If T is not an array type and Pointer is implicitly convertible to pointer.
    //!      - If T is an array type and Pointer is a more CV qualified pointer to element_type.
    template<class Pointer>
    BOOST_MOVE_FORCEINLINE unique_ptr(Pointer p, BOOST_MOVE_SEEDOC(deleter_arg_type1) d1
       BOOST_MOVE_DOCIGN(BOOST_MOVE_I typename bmupd::enable_up_ptr<T BOOST_MOVE_I Pointer BOOST_MOVE_I pointer>::type* =0)
               ) BOOST_NOEXCEPT
       : m_data(p, d1)
    {
       //If T is not an array type, element_type_t<Pointer> derives from T
       //it uses the default deleter and T has no virtual destructor, then you have a problem
       BOOST_MOVE_STATIC_ASSERT(( !bmupd::missing_virtual_destructor
                             <D, typename bmupd::get_element_type<Pointer>::type>::value ));
    }
 
    //! <b>Effects</b>: Same effects as <tt>template<class Pointer> unique_ptr(Pointer p, deleter_arg_type1 d1)</tt>
    //!   and additionally <tt>get() == nullptr</tt>
    BOOST_MOVE_FORCEINLINE unique_ptr(BOOST_MOVE_DOC0PTR(bmupd::nullptr_type), BOOST_MOVE_SEEDOC(deleter_arg_type1) d1) BOOST_NOEXCEPT
       : m_data(pointer(), d1)
    {}
 
    //! The signature of this constructor depends upon whether D is a reference type.
    //!   - If D is non-reference type A, then the signature is <tt>unique_ptr(pointer p, A&& d)</tt>.
    //!   - If D is an lvalue-reference type A&, then the signature is <tt>unique_ptr(pointer p, A&& d)</tt>.
    //!   - If D is an lvalue-reference type const A&, then the signature is <tt>unique_ptr(pointer p, const A&& d)</tt>.
    //!
    //! <b>Requires</b>: Either
    //!   - D is not an lvalue-reference type and d is a non-const rvalue. D
    //!      shall satisfy the requirements of MoveConstructible, and the move constructor
    //!      of D shall not throw an exception. This unique_ptr will hold a value move constructed from d.
    //!   - D is an lvalue-reference type and d is an rvalue, the program is ill-formed.
    //!
    //! <b>Effects</b>: Constructs a unique_ptr object which owns p, initializing the stored pointer with p and
    //!   initializing the deleter as described above.
    //! 
    //! <b>Postconditions</b>: <tt>get() == p</tt>. <tt>get_deleter()</tt> returns a reference to the stored deleter. If D is a
    //!   reference type then <tt>get_deleter()</tt> returns a reference to the lvalue d.
    //!
    //! <b>Remarks</b>: This constructor shall not participate in overload resolution unless:
    //!      - If T is not an array type and Pointer is implicitly convertible to pointer.
    //!      - If T is an array type and Pointer is a more CV qualified pointer to element_type.
    template<class Pointer>
    BOOST_MOVE_FORCEINLINE unique_ptr(Pointer p, BOOST_MOVE_SEEDOC(deleter_arg_type2) d2
       BOOST_MOVE_DOCIGN(BOOST_MOVE_I typename bmupd::enable_up_ptr<T BOOST_MOVE_I Pointer BOOST_MOVE_I pointer>::type* =0)
              ) BOOST_NOEXCEPT
       : m_data(p, ::boost::move(d2))
    {
       //If T is not an array type, element_type_t<Pointer> derives from T
       //it uses the default deleter and T has no virtual destructor, then you have a problem
       BOOST_MOVE_STATIC_ASSERT(( !bmupd::missing_virtual_destructor
                             <D, typename bmupd::get_element_type<Pointer>::type>::value ));
    }
 
    //! <b>Effects</b>: Same effects as <tt>template<class Pointer> unique_ptr(Pointer p, deleter_arg_type2 d2)</tt>
    //!   and additionally <tt>get() == nullptr</tt>
    BOOST_MOVE_FORCEINLINE unique_ptr(BOOST_MOVE_DOC0PTR(bmupd::nullptr_type), BOOST_MOVE_SEEDOC(deleter_arg_type2) d2) BOOST_NOEXCEPT
       : m_data(pointer(), ::boost::move(d2))
    {}
 
    //! <b>Requires</b>: If D is not a reference type, D shall satisfy the requirements of MoveConstructible.
    //! Construction of the deleter from an rvalue of type D shall not throw an exception.
    //! 
    //! <b>Effects</b>: Constructs a unique_ptr by transferring ownership from u to *this. If D is a reference type,
    //! this deleter is copy constructed from u's deleter; otherwise, this deleter is move constructed from u's
    //! deleter.
    //! 
    //! <b>Postconditions</b>: <tt>get()</tt> yields the value u.get() yielded before the construction. <tt>get_deleter()</tt>
    //! returns a reference to the stored deleter that was constructed from u.get_deleter(). If D is a
    //! reference type then <tt>get_deleter()</tt> and <tt>u.get_deleter()</tt> both reference the same lvalue deleter.
    BOOST_MOVE_FORCEINLINE unique_ptr(BOOST_RV_REF(unique_ptr) u) BOOST_NOEXCEPT
       : m_data(u.release(), ::boost::move_if_not_lvalue_reference<D>(u.get_deleter()))
    {}
 
    //! <b>Requires</b>: If E is not a reference type, construction of the deleter from an rvalue of type E shall be
    //!   well formed and shall not throw an exception. Otherwise, E is a reference type and construction of the
    //!   deleter from an lvalue of type E shall be well formed and shall not throw an exception.
    //!
    //! <b>Remarks</b>: This constructor shall not participate in overload resolution unless:
    //!   - <tt>unique_ptr<U, E>::pointer</tt> is implicitly convertible to pointer,
    //!   - U is not an array type, and
    //!   - either D is a reference type and E is the same type as D, or D is not a reference type and E is
    //!      implicitly convertible to D.
    //!
    //! <b>Effects</b>: Constructs a unique_ptr by transferring ownership from u to *this. If E is a reference type,
    //!   this deleter is copy constructed from u's deleter; otherwise, this deleter is move constructed from u's deleter.
    //!
    //! <b>Postconditions</b>: <tt>get()</tt> yields the value <tt>u.get()</tt> yielded before the construction. <tt>get_deleter()</tt>
    //!   returns a reference to the stored deleter that was constructed from <tt>u.get_deleter()</tt>.
    template <class U, class E>
    BOOST_MOVE_FORCEINLINE unique_ptr( BOOST_RV_REF_BEG_IF_CXX11 unique_ptr<U, E> BOOST_RV_REF_END_IF_CXX11 u
       BOOST_MOVE_DOCIGN(BOOST_MOVE_I typename bmupd::enable_up_moveconv_constr<T BOOST_MOVE_I D BOOST_MOVE_I U BOOST_MOVE_I E>::type* =0)
       ) BOOST_NOEXCEPT
       : m_data(u.release(), ::boost::move_if_not_lvalue_reference<E>(u.get_deleter()))
    {
       //If T is not an array type, U derives from T
       //it uses the default deleter and T has no virtual destructor, then you have a problem
       BOOST_MOVE_STATIC_ASSERT(( !bmupd::missing_virtual_destructor
                             <D, typename unique_ptr<U, E>::pointer>::value ));
    }
 
    //! <b>Requires</b>: The expression <tt>get_deleter()(get())</tt> shall be well formed, shall have well-defined behavior,
    //!   and shall not throw exceptions.
    //!
    //! <b>Effects</b>: If <tt>get() == nullpt1r</tt> there are no effects. Otherwise <tt>get_deleter()(get())</tt>.
    //!
    //! <b>Note</b>: The use of default_delete requires T to be a complete type
    ~unique_ptr()
    {  if(m_data.m_p) m_data.deleter()(m_data.m_p);   }
 
    //! <b>Requires</b>: If D is not a reference type, D shall satisfy the requirements of MoveAssignable
    //!   and assignment of the deleter from an rvalue of type D shall not throw an exception. Otherwise, D
    //!   is a reference type; <tt>remove_reference<D>::type</tt> shall satisfy the CopyAssignable requirements and
    //!   assignment of the deleter from an lvalue of type D shall not throw an exception.
    //!
    //! <b>Effects</b>: Transfers ownership from u to *this as if by calling <tt>reset(u.release())</tt> followed
    //!   by <tt>get_deleter() = std::forward<D>(u.get_deleter())</tt>.
    //!
    //! <b>Returns</b>: *this.
    unique_ptr& operator=(BOOST_RV_REF(unique_ptr) u) BOOST_NOEXCEPT
    {
       this->reset(u.release());
       m_data.deleter() = ::boost::move_if_not_lvalue_reference<D>(u.get_deleter());
       return *this;
    }
 
    //! <b>Requires</b>: If E is not a reference type, assignment of the deleter from an rvalue of type E shall be
    //!   well-formed and shall not throw an exception. Otherwise, E is a reference type and assignment of the
    //!   deleter from an lvalue of type E shall be well-formed and shall not throw an exception.
    //!
    //! <b>Remarks</b>: This operator shall not participate in overload resolution unless:
    //!   - <tt>unique_ptr<U, E>::pointer</tt> is implicitly convertible to pointer and
    //!   - U is not an array type.
    //!
    //! <b>Effects</b>: Transfers ownership from u to *this as if by calling <tt>reset(u.release())</tt> followed by
    //!   <tt>get_deleter() = std::forward<E>(u.get_deleter())</tt>.
    //!
    //! <b>Returns</b>: *this.
    template <class U, class E>
    BOOST_MOVE_DOC1ST(unique_ptr&, typename bmupd::enable_up_moveconv_assign
          <T BOOST_MOVE_I D BOOST_MOVE_I U BOOST_MOVE_I E BOOST_MOVE_I unique_ptr &>::type)
       operator=(BOOST_RV_REF_BEG unique_ptr<U, E> BOOST_RV_REF_END u) BOOST_NOEXCEPT
    {
       this->reset(u.release());
       m_data.deleter() = ::boost::move_if_not_lvalue_reference<E>(u.get_deleter());
       return *this;
    }
 
    //! <b>Effects</b>: <tt>reset()</tt>.
    //!
    //! <b>Postcondition</b>: <tt>get() == nullptr</tt>
    //!
    //! <b>Returns</b>: *this.
    unique_ptr& operator=(BOOST_MOVE_DOC0PTR(bmupd::nullptr_type)) BOOST_NOEXCEPT
    {  this->reset(); return *this;  }
 
    //! <b>Requires</b>: <tt>get() != nullptr</tt>.
    //!
    //! <b>Returns</b>: <tt>*get()</tt>.
    //!
    //! <b>Remarks</b: If T is an array type, the program is ill-formed.
    BOOST_MOVE_DOC1ST(element_type&, typename bmupmu::add_lvalue_reference<element_type>::type)
       operator*() const BOOST_NOEXCEPT
    {
       BOOST_MOVE_STATIC_ASSERT((!bmupmu::is_array<T>::value));
       return *m_data.m_p;
    }
 
    //! <b>Requires</b>: i < the number of elements in the array to which the stored pointer points.
    //!
    //! <b>Returns</b>: <tt>get()[i]</tt>.
    //!
    //! <b>Remarks</b: If T is not an array type, the program is ill-formed.
    BOOST_MOVE_FORCEINLINE BOOST_MOVE_DOC1ST(element_type&, typename bmupmu::add_lvalue_reference<element_type>::type)
       operator[](std::size_t i) const BOOST_NOEXCEPT
    {
       assert( bmupmu::extent<T>::value == 0 || i < bmupmu::extent<T>::value );
       assert(m_data.m_p);
       return m_data.m_p[i];
    }
 
    //! <b>Requires</b>: <tt>get() != nullptr</tt>.
    //!
    //! <b>Returns</b>: <tt>get()</tt>.
    //!
    //! <b>Note</b>: use typically requires that T be a complete type.
    //!
    //! <b>Remarks</b: If T is an array type, the program is ill-formed.
    BOOST_MOVE_FORCEINLINE pointer operator->() const BOOST_NOEXCEPT
    {
       BOOST_MOVE_STATIC_ASSERT((!bmupmu::is_array<T>::value));
       assert(m_data.m_p);
       return m_data.m_p;
    }
 
    //! <b>Returns</b>: The stored pointer.
    //!
    BOOST_MOVE_FORCEINLINE pointer get() const BOOST_NOEXCEPT
    {  return m_data.m_p;  }
 
    //! <b>Returns</b>: A reference to the stored deleter.
    //!
    BOOST_MOVE_FORCEINLINE BOOST_MOVE_DOC1ST(D&, typename bmupmu::add_lvalue_reference<D>::type)
       get_deleter() BOOST_NOEXCEPT
    {  return m_data.deleter();  }   
 
    //! <b>Returns</b>: A reference to the stored deleter.
    //!
    BOOST_MOVE_FORCEINLINE BOOST_MOVE_DOC1ST(const D&, typename bmupmu::add_const_lvalue_reference<D>::type)
       get_deleter() const BOOST_NOEXCEPT
    {  return m_data.deleter();  }
 
    #ifdef BOOST_MOVE_DOXYGEN_INVOKED
    //! <b>Returns</b>: Returns: get() != nullptr.
    //!
    BOOST_MOVE_FORCEINLINE explicit operator bool
    #else
    BOOST_MOVE_FORCEINLINE operator bmupd::explicit_bool_arg
    #endif
       ()const BOOST_NOEXCEPT
    {
       return m_data.m_p
          ? &bmupd::bool_conversion::for_bool
          : bmupd::explicit_bool_arg(0);
    }
 
    //! <b>Postcondition</b>: <tt>get() == nullptr</tt>.
    //!
    //! <b>Returns</b>: The value <tt>get()</tt> had at the start of the call to release.   
    BOOST_MOVE_FORCEINLINE pointer release() BOOST_NOEXCEPT
    {
       const pointer tmp = m_data.m_p;
       m_data.m_p = pointer();
       return tmp;
    }
 
    //! <b>Requires</b>: The expression <tt>get_deleter()(get())</tt> shall be well formed, shall have well-defined behavior,
    //!   and shall not throw exceptions.
    //!
    //! <b>Effects</b>: assigns p to the stored pointer, and then if the old value of the stored pointer, old_p, was not
    //!   equal to nullptr, calls <tt>get_deleter()(old_p)</tt>. Note: The order of these operations is significant
    //!   because the call to <tt>get_deleter()</tt> may destroy *this.
    //!
    //! <b>Postconditions</b>: <tt>get() == p</tt>. Note: The postcondition does not hold if the call to <tt>get_deleter()</tt>
    //!   destroys *this since <tt>this->get()</tt> is no longer a valid expression.
    //!
    //! <b>Remarks</b>: This constructor shall not participate in overload resolution unless:
    //!      - If T is not an array type and Pointer is implicitly convertible to pointer.
    //!      - If T is an array type and Pointer is a more CV qualified pointer to element_type.
    template<class Pointer>
    BOOST_MOVE_DOC1ST(void, typename bmupd::enable_up_ptr<T BOOST_MOVE_I Pointer BOOST_MOVE_I pointer BOOST_MOVE_I void>::type)
       reset(Pointer p) BOOST_NOEXCEPT
    {
       //If T is not an array type, element_type_t<Pointer> derives from T
       //it uses the default deleter and T has no virtual destructor, then you have a problem
       BOOST_MOVE_STATIC_ASSERT(( !bmupd::missing_virtual_destructor
                             <D, typename bmupd::get_element_type<Pointer>::type>::value ));
       pointer tmp = m_data.m_p;
       m_data.m_p = p;
       if(tmp) m_data.deleter()(tmp);
    }
 
    //! <b>Requires</b>: The expression <tt>get_deleter()(get())</tt> shall be well formed, shall have well-defined behavior,
    //!   and shall not throw exceptions.
    //!
    //! <b>Effects</b>: assigns nullptr to the stored pointer, and then if the old value of the stored pointer, old_p, was not
    //!   equal to nullptr, calls <tt>get_deleter()(old_p)</tt>. Note: The order of these operations is significant
    //!   because the call to <tt>get_deleter()</tt> may destroy *this.
    //!
    //! <b>Postconditions</b>: <tt>get() == p</tt>. Note: The postcondition does not hold if the call to <tt>get_deleter()</tt>
    //!   destroys *this since <tt>this->get()</tt> is no longer a valid expression.
    void reset() BOOST_NOEXCEPT
    {  this->reset(pointer());  }
 
    //! <b>Effects</b>: Same as <tt>reset()</tt>
    //! 
    void reset(BOOST_MOVE_DOC0PTR(bmupd::nullptr_type)) BOOST_NOEXCEPT
    {  this->reset(); }
 
    //! <b>Requires</b>: <tt>get_deleter()</tt> shall be swappable and shall not throw an exception under swap.
    //!
    //! <b>Effects</b>: Invokes swap on the stored pointers and on the stored deleters of *this and u.
    void swap(unique_ptr& u) BOOST_NOEXCEPT
    {
       ::boost::adl_move_swap(m_data.m_p, u.m_data.m_p);
       ::boost::adl_move_swap(m_data.deleter(), u.m_data.deleter());
    }
 };
 
 //! <b>Effects</b>: Calls <tt>x.swap(y)</tt>.
 //!
 template <class T, class D>
 BOOST_MOVE_FORCEINLINE void swap(unique_ptr<T, D> &x, unique_ptr<T, D> &y) BOOST_NOEXCEPT
 {  x.swap(y); }
 
 //! <b>Returns</b>: <tt>x.get() == y.get()</tt>.
 //!
 template <class T1, class D1, class T2, class D2>
 BOOST_MOVE_FORCEINLINE bool operator==(const unique_ptr<T1, D1> &x, const unique_ptr<T2, D2> &y)
 {  return x.get() == y.get(); }
 
 //! <b>Returns</b>: <tt>x.get() != y.get()</tt>.
 //!
 template <class T1, class D1, class T2, class D2>
 BOOST_MOVE_FORCEINLINE bool operator!=(const unique_ptr<T1, D1> &x, const unique_ptr<T2, D2> &y)
 {  return x.get() != y.get(); }
 
 //! <b>Returns</b>: x.get() < y.get().
 //!
 //! <b>Remarks</b>: This comparison shall induce a
 //!   strict weak ordering betwen pointers.
 template <class T1, class D1, class T2, class D2>
 BOOST_MOVE_FORCEINLINE bool operator<(const unique_ptr<T1, D1> &x, const unique_ptr<T2, D2> &y)
 {  return x.get() < y.get();  }
 
 //! <b>Returns</b>: !(y < x).
 //!
 template <class T1, class D1, class T2, class D2>
 BOOST_MOVE_FORCEINLINE bool operator<=(const unique_ptr<T1, D1> &x, const unique_ptr<T2, D2> &y)
 {  return !(y < x);  }
 
 //! <b>Returns</b>: y < x.
 //!
 template <class T1, class D1, class T2, class D2>
 BOOST_MOVE_FORCEINLINE bool operator>(const unique_ptr<T1, D1> &x, const unique_ptr<T2, D2> &y)
 {  return y < x;  }
 
 //! <b>Returns</b>:!(x < y).
 //!
 template <class T1, class D1, class T2, class D2>
 BOOST_MOVE_FORCEINLINE bool operator>=(const unique_ptr<T1, D1> &x, const unique_ptr<T2, D2> &y)
 {  return !(x < y);  }
 
 //! <b>Returns</b>:!x.
 //!
 template <class T, class D>
 BOOST_MOVE_FORCEINLINE bool operator==(const unique_ptr<T, D> &x, BOOST_MOVE_DOC0PTR(bmupd::nullptr_type)) BOOST_NOEXCEPT
 {  return !x;  }
 
 //! <b>Returns</b>:!x.
 //!
 template <class T, class D>
 BOOST_MOVE_FORCEINLINE bool operator==(BOOST_MOVE_DOC0PTR(bmupd::nullptr_type), const unique_ptr<T, D> &x) BOOST_NOEXCEPT
 {  return !x;  }
 
 //! <b>Returns</b>: (bool)x.
 //!
 template <class T, class D>
 BOOST_MOVE_FORCEINLINE bool operator!=(const unique_ptr<T, D> &x, BOOST_MOVE_DOC0PTR(bmupd::nullptr_type)) BOOST_NOEXCEPT
 {  return !!x;  }
 
 //! <b>Returns</b>: (bool)x.
 //!
 template <class T, class D>
 BOOST_MOVE_FORCEINLINE bool operator!=(BOOST_MOVE_DOC0PTR(bmupd::nullptr_type), const unique_ptr<T, D> &x) BOOST_NOEXCEPT
 {  return !!x;  }
 
 //! <b>Requires</b>: <tt>operator </tt> shall induce a strict weak ordering on unique_ptr<T, D>::pointer values.
 //!
 //! <b>Returns</b>: Returns <tt>x.get() < pointer()</tt>.
 template <class T, class D>
 BOOST_MOVE_FORCEINLINE bool operator<(const unique_ptr<T, D> &x, BOOST_MOVE_DOC0PTR(bmupd::nullptr_type))
 {  return x.get() < typename unique_ptr<T, D>::pointer();  }
 
 //! <b>Requires</b>: <tt>operator </tt> shall induce a strict weak ordering on unique_ptr<T, D>::pointer values.
 //!
 //! <b>Returns</b>: Returns <tt>pointer() < x.get()</tt>.
 template <class T, class D>
 BOOST_MOVE_FORCEINLINE bool operator<(BOOST_MOVE_DOC0PTR(bmupd::nullptr_type), const unique_ptr<T, D> &x)
 {  return typename unique_ptr<T, D>::pointer() < x.get();  }
 
 //! <b>Returns</b>: <tt>nullptr < x</tt>.
 //!
 template <class T, class D>
 BOOST_MOVE_FORCEINLINE bool operator>(const unique_ptr<T, D> &x, BOOST_MOVE_DOC0PTR(bmupd::nullptr_type))
 {  return x.get() > typename unique_ptr<T, D>::pointer();  }
 
 //! <b>Returns</b>: <tt>x < nullptr</tt>.
 //!
 template <class T, class D>
 BOOST_MOVE_FORCEINLINE bool operator>(BOOST_MOVE_DOC0PTR(bmupd::nullptr_type), const unique_ptr<T, D> &x)
 {  return typename unique_ptr<T, D>::pointer() > x.get();  }
 
 //! <b>Returns</b>: <tt>!(nullptr < x)</tt>.
 //!
 template <class T, class D>
 BOOST_MOVE_FORCEINLINE bool operator<=(const unique_ptr<T, D> &x, BOOST_MOVE_DOC0PTR(bmupd::nullptr_type))
 {  return !(bmupd::nullptr_type() < x);  }
 
 //! <b>Returns</b>: <tt>!(x < nullptr)</tt>.
 //!
 template <class T, class D>
 BOOST_MOVE_FORCEINLINE bool operator<=(BOOST_MOVE_DOC0PTR(bmupd::nullptr_type), const unique_ptr<T, D> &x)
 {  return !(x < bmupd::nullptr_type());  }
 
 //! <b>Returns</b>: <tt>!(x < nullptr)</tt>.
 //!
 template <class T, class D>
 BOOST_MOVE_FORCEINLINE bool operator>=(const unique_ptr<T, D> &x, BOOST_MOVE_DOC0PTR(bmupd::nullptr_type))
 {  return !(x < bmupd::nullptr_type());  }
 
 //! <b>Returns</b>: <tt>!(nullptr < x)</tt>.
 //!
 template <class T, class D>
 BOOST_MOVE_FORCEINLINE bool operator>=(BOOST_MOVE_DOC0PTR(bmupd::nullptr_type), const unique_ptr<T, D> &x)
 {  return !(bmupd::nullptr_type() < x);  }
 
 }  //namespace movelib {
 }  //namespace boost{
 
 #include <boost/move/detail/config_end.hpp>
 
 #endif   //#ifndef BOOST_MOVE_UNIQUE_PTR_HPP_INCLUDED

This page was automatically generated by the 2.3.7 LXR engine. The LXR team