1535 lines
73 KiB
C++
1535 lines
73 KiB
C++
//////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright Pablo Halpern 2009. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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//////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright Ion Gaztanaga 2011-2012. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/container for documentation.
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//
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//////////////////////////////////////////////////////////////////////////////
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#ifndef BOOST_CONTAINER_ALLOCATOR_SCOPED_ALLOCATOR_HPP
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#define BOOST_CONTAINER_ALLOCATOR_SCOPED_ALLOCATOR_HPP
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#if defined (_MSC_VER)
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# pragma once
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#endif
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#include <boost/container/detail/config_begin.hpp>
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#include <boost/container/detail/workaround.hpp>
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#include <boost/container/scoped_allocator_fwd.hpp>
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#include <boost/type_traits/integral_constant.hpp>
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#include <boost/container/allocator_traits.hpp>
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#include <boost/container/detail/type_traits.hpp>
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#include <boost/container/detail/utilities.hpp>
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#include <utility>
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#include <boost/container/detail/pair.hpp>
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#include <boost/move/utility.hpp>
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#include <boost/detail/no_exceptions_support.hpp>
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namespace boost { namespace container {
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//! <b>Remark</b>: if a specialization is derived from true_type, indicates that T may be constructed
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//! with an allocator as its last constructor argument. Ideally, all constructors of T (including the
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//! copy and move constructors) should have a variant that accepts a final argument of
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//! allocator_type.
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//!
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//! <b>Requires</b>: if a specialization is derived from true_type, T must have a nested type,
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//! allocator_type and at least one constructor for which allocator_type is the last
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//! parameter. If not all constructors of T can be called with a final allocator_type argument,
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//! and if T is used in a context where a container must call such a constructor, then the program is
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//! ill-formed.
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//!
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//! [Example:
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//! template <class T, class Allocator = allocator<T> >
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//! class Z {
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//! public:
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//! typedef Allocator allocator_type;
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//!
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//! // Default constructor with optional allocator suffix
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//! Z(const allocator_type& a = allocator_type());
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//!
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//! // Copy constructor and allocator-extended copy constructor
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//! Z(const Z& zz);
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//! Z(const Z& zz, const allocator_type& a);
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//! };
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//!
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//! // Specialize trait for class template Z
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//! template <class T, class Allocator = allocator<T> >
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//! struct constructible_with_allocator_suffix<Z<T,Allocator> >
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//! : ::boost::true_type { };
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//! -- end example]
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//!
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//! <b>Note</b>: This trait is a workaround inspired by "N2554: The Scoped Allocator Model (Rev 2)"
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//! (Pablo Halpern, 2008-02-29) to backport the scoped allocator model to C++03, as
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//! in C++03 there is no mechanism to detect if a type can be constructed from arbitrary arguments.
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//! Applications aiming portability with several compilers should always define this trait.
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//!
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//! In conforming C++11 compilers or compilers supporting SFINAE expressions
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//! (when BOOST_NO_SFINAE_EXPR is NOT defined), this trait is ignored and C++11 rules will be used
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//! to detect if a type should be constructed with suffix or prefix allocator arguments.
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template <class T>
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struct constructible_with_allocator_suffix
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: ::boost::false_type
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{};
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//! <b>Remark</b>: if a specialization is derived from true_type, indicates that T may be constructed
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//! with allocator_arg and T::allocator_type as its first two constructor arguments.
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//! Ideally, all constructors of T (including the copy and move constructors) should have a variant
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//! that accepts these two initial arguments.
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//!
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//! <b>Requires</b>: if a specialization is derived from true_type, T must have a nested type,
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//! allocator_type and at least one constructor for which allocator_arg_t is the first
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//! parameter and allocator_type is the second parameter. If not all constructors of T can be
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//! called with these initial arguments, and if T is used in a context where a container must call such
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//! a constructor, then the program is ill-formed.
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//!
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//! [Example:
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//! template <class T, class Allocator = allocator<T> >
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//! class Y {
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//! public:
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//! typedef Allocator allocator_type;
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//!
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//! // Default constructor with and allocator-extended default constructor
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//! Y();
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//! Y(allocator_arg_t, const allocator_type& a);
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//!
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//! // Copy constructor and allocator-extended copy constructor
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//! Y(const Y& yy);
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//! Y(allocator_arg_t, const allocator_type& a, const Y& yy);
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//!
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//! // Variadic constructor and allocator-extended variadic constructor
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//! template<class ...Args> Y(Args&& args...);
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//! template<class ...Args>
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//! Y(allocator_arg_t, const allocator_type& a, Args&&... args);
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//! };
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//!
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//! // Specialize trait for class template Y
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//! template <class T, class Allocator = allocator<T> >
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//! struct constructible_with_allocator_prefix<Y<T,Allocator> >
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//! : ::boost::true_type { };
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//!
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//! -- end example]
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//!
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//! <b>Note</b>: This trait is a workaround inspired by "N2554: The Scoped Allocator Model (Rev 2)"
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//! (Pablo Halpern, 2008-02-29) to backport the scoped allocator model to C++03, as
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//! in C++03 there is no mechanism to detect if a type can be constructed from arbitrary arguments.
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//! Applications aiming portability with several compilers should always define this trait.
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//!
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//! In conforming C++11 compilers or compilers supporting SFINAE expressions
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//! (when BOOST_NO_SFINAE_EXPR is NOT defined), this trait is ignored and C++11 rules will be used
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//! to detect if a type should be constructed with suffix or prefix allocator arguments.
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template <class T>
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struct constructible_with_allocator_prefix
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: ::boost::false_type
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{};
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///@cond
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namespace container_detail {
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template<typename T, typename Alloc>
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struct uses_allocator_imp
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{
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// Use SFINAE (Substitution Failure Is Not An Error) to detect the
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// presence of an 'allocator_type' nested type convertilble from Alloc.
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private:
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// Match this function if TypeT::allocator_type exists and is
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// implicitly convertible from Alloc
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template <typename U>
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static char test(int, typename U::allocator_type);
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// Match this function if TypeT::allocator_type does not exist or is
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// not convertible from Alloc.
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template <typename U>
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static int test(LowPriorityConversion<int>, LowPriorityConversion<Alloc>);
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static Alloc alloc; // Declared but not defined
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public:
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enum { value = sizeof(test<T>(0, alloc)) == sizeof(char) };
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};
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} //namespace container_detail {
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///@endcond
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//! <b>Remark</b>: Automatically detects if T has a nested allocator_type that is convertible from
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//! Alloc. Meets the BinaryTypeTrait requirements ([meta.rqmts] 20.4.1). A program may
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//! specialize this type to derive from true_type for a T of user-defined type if T does not
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//! have a nested allocator_type but is nonetheless constructible using the specified Alloc.
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//!
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//! <b>Result</b>: derived from true_type if Convertible<Alloc,T::allocator_type> and
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//! derived from false_type otherwise.
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template <typename T, typename Alloc>
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struct uses_allocator
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: boost::integral_constant<bool, container_detail::uses_allocator_imp<T, Alloc>::value>
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{};
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///@cond
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namespace container_detail {
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template <typename Alloc>
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struct is_scoped_allocator_imp
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{
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template <typename T>
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static char test(int, typename T::outer_allocator_type*);
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template <typename T>
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static int test(LowPriorityConversion<int>, void*);
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static const bool value = (sizeof(char) == sizeof(test<Alloc>(0, 0)));
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};
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template<class MaybeScopedAlloc, bool = is_scoped_allocator_imp<MaybeScopedAlloc>::value >
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struct outermost_allocator_type_impl
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{
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typedef typename MaybeScopedAlloc::outer_allocator_type outer_type;
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typedef typename outermost_allocator_type_impl<outer_type>::type type;
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};
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template<class MaybeScopedAlloc>
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struct outermost_allocator_type_impl<MaybeScopedAlloc, false>
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{
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typedef MaybeScopedAlloc type;
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};
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template<class MaybeScopedAlloc, bool = is_scoped_allocator_imp<MaybeScopedAlloc>::value >
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struct outermost_allocator_imp
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{
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typedef MaybeScopedAlloc type;
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static type &get(MaybeScopedAlloc &a)
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{ return a; }
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static const type &get(const MaybeScopedAlloc &a)
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{ return a; }
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};
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template<class MaybeScopedAlloc>
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struct outermost_allocator_imp<MaybeScopedAlloc, true>
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{
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typedef typename MaybeScopedAlloc::outer_allocator_type outer_type;
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typedef typename outermost_allocator_type_impl<outer_type>::type type;
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static type &get(MaybeScopedAlloc &a)
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{ return outermost_allocator_imp<outer_type>::get(a.outer_allocator()); }
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static const type &get(const MaybeScopedAlloc &a)
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{ return outermost_allocator_imp<outer_type>::get(a.outer_allocator()); }
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};
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} //namespace container_detail {
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template <typename Alloc>
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struct is_scoped_allocator
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: boost::integral_constant<bool, container_detail::is_scoped_allocator_imp<Alloc>::value>
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{};
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template <typename Alloc>
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struct outermost_allocator
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: container_detail::outermost_allocator_imp<Alloc>
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{};
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template <typename Alloc>
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typename container_detail::outermost_allocator_imp<Alloc>::type &
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get_outermost_allocator(Alloc &a)
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{ return container_detail::outermost_allocator_imp<Alloc>::get(a); }
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template <typename Alloc>
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const typename container_detail::outermost_allocator_imp<Alloc>::type &
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get_outermost_allocator(const Alloc &a)
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{ return container_detail::outermost_allocator_imp<Alloc>::get(a); }
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namespace container_detail {
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// Check if we can detect is_convertible using advanced SFINAE expressions
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#if !defined(BOOST_NO_SFINAE_EXPR)
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//! Code inspired by Mathias Gaunard's is_convertible.cpp found in the Boost mailing list
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//! http://boost.2283326.n4.nabble.com/type-traits-is-constructible-when-decltype-is-supported-td3575452.html
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//! Thanks Mathias!
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//With variadic templates, we need a single class to implement the trait
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#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
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template<class T, class ...Args>
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struct is_constructible_impl
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{
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typedef char yes_type;
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struct no_type
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{ char padding[2]; };
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template<std::size_t N>
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struct dummy;
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template<class X>
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static yes_type test(dummy<sizeof(X(boost::move_detail::declval<Args>()...))>*);
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template<class X>
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static no_type test(...);
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static const bool value = sizeof(test<T>(0)) == sizeof(yes_type);
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};
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template<class T, class ...Args>
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struct is_constructible
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: boost::integral_constant<bool, is_constructible_impl<T, Args...>::value>
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{};
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template <class T, class InnerAlloc, class ...Args>
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struct is_constructible_with_allocator_prefix
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: is_constructible<T, allocator_arg_t, InnerAlloc, Args...>
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{};
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#else // #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
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//Without variadic templates, we need to use de preprocessor to generate
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//some specializations.
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#define BOOST_CONTAINER_MAX_IS_CONSTRUCTIBLE_PARAMETERS \
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BOOST_PP_ADD(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, 3)
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//!
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//Generate N+1 template parameters so that we can specialize N
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template<class T
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BOOST_PP_ENUM_TRAILING( BOOST_PP_ADD(BOOST_CONTAINER_MAX_IS_CONSTRUCTIBLE_PARAMETERS, 1)
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, BOOST_CONTAINER_PP_TEMPLATE_PARAM_WITH_DEFAULT
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, void)
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>
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struct is_constructible_impl;
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//Generate N specializations, from 0 to
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//BOOST_CONTAINER_MAX_IS_CONSTRUCTIBLE_PARAMETERS parameters
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#define BOOST_PP_LOCAL_MACRO(n) \
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template<class T BOOST_PP_ENUM_TRAILING_PARAMS(n, class P)> \
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struct is_constructible_impl \
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<T BOOST_PP_ENUM_TRAILING_PARAMS(n, P) \
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BOOST_PP_ENUM_TRAILING \
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( BOOST_PP_SUB(BOOST_CONTAINER_MAX_IS_CONSTRUCTIBLE_PARAMETERS, n) \
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, BOOST_CONTAINER_PP_IDENTITY, void) \
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, void> \
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{ \
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typedef char yes_type; \
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struct no_type \
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{ char padding[2]; }; \
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\
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template<std::size_t N> \
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struct dummy; \
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\
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template<class X> \
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static yes_type test(dummy<sizeof(X(BOOST_PP_ENUM(n, BOOST_CONTAINER_PP_DECLVAL, ~)))>*); \
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\
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template<class X> \
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static no_type test(...); \
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\
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static const bool value = sizeof(test<T>(0)) == sizeof(yes_type); \
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}; \
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//!
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#define BOOST_PP_LOCAL_LIMITS (0, BOOST_CONTAINER_MAX_IS_CONSTRUCTIBLE_PARAMETERS)
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#include BOOST_PP_LOCAL_ITERATE()
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//Finally just inherit from the implementation to define he trait
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template< class T
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BOOST_PP_ENUM_TRAILING( BOOST_CONTAINER_MAX_IS_CONSTRUCTIBLE_PARAMETERS
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, BOOST_CONTAINER_PP_TEMPLATE_PARAM_WITH_DEFAULT
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, void)
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>
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struct is_constructible
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: boost::integral_constant
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< bool
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, is_constructible_impl
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< T
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BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_CONTAINER_MAX_IS_CONSTRUCTIBLE_PARAMETERS, P)
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, void>::value
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>
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{};
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//Finally just inherit from the implementation to define he trait
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template <class T
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,class InnerAlloc
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BOOST_PP_ENUM_TRAILING( BOOST_PP_SUB(BOOST_CONTAINER_MAX_IS_CONSTRUCTIBLE_PARAMETERS, 2)
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, BOOST_CONTAINER_PP_TEMPLATE_PARAM_WITH_DEFAULT
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, void)
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>
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struct is_constructible_with_allocator_prefix
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: is_constructible
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< T, allocator_arg_t, InnerAlloc
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BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_SUB(BOOST_CONTAINER_MAX_IS_CONSTRUCTIBLE_PARAMETERS, 2), P)
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>
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{};
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/*
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template <class T
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,class InnerAlloc
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BOOST_PP_ENUM_TRAILING( BOOST_PP_SUB(BOOST_CONTAINER_MAX_IS_CONSTRUCTIBLE_PARAMETERS, 1)
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, BOOST_CONTAINER_PP_TEMPLATE_PARAM_WITH_DEFAULT
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, void)
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>
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struct is_constructible_with_allocator_suffix
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: is_constructible
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< T
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BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_SUB(BOOST_CONTAINER_MAX_IS_CONSTRUCTIBLE_PARAMETERS, 1), P)
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, InnerAlloc
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>
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{};*/
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#endif // #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
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#else // #if !defined(BOOST_NO_SFINAE_EXPR)
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//Without advanced SFINAE expressions, we can't use is_constructible
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//so backup to constructible_with_allocator_xxx
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#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
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template < class T, class InnerAlloc, class ...Args>
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struct is_constructible_with_allocator_prefix
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: constructible_with_allocator_prefix<T>
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{};
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/*
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template < class T, class InnerAlloc, class ...Args>
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struct is_constructible_with_allocator_suffix
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: constructible_with_allocator_suffix<T>
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{};*/
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#else // #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
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template < class T
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, class InnerAlloc
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BOOST_PP_ENUM_TRAILING( BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS
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, BOOST_CONTAINER_PP_TEMPLATE_PARAM_WITH_DEFAULT
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, void)
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>
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struct is_constructible_with_allocator_prefix
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: constructible_with_allocator_prefix<T>
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{};
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/*
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template < class T
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, class InnerAlloc
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BOOST_PP_ENUM_TRAILING( BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS
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, BOOST_CONTAINER_PP_TEMPLATE_PARAM_WITH_DEFAULT
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, void)
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>
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struct is_constructible_with_allocator_suffix
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: constructible_with_allocator_suffix<T>
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{};*/
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#endif // #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
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#endif // #if !defined(BOOST_NO_SFINAE_EXPR)
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#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
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template < typename OutermostAlloc
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, typename InnerAlloc
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, typename T
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, class ...Args
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>
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inline void dispatch_allocator_prefix_suffix
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( boost::true_type use_alloc_prefix, OutermostAlloc& outermost_alloc
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, InnerAlloc& inner_alloc, T* p, BOOST_FWD_REF(Args) ...args)
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{
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(void)use_alloc_prefix;
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allocator_traits<OutermostAlloc>::construct
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( outermost_alloc, p, allocator_arg, inner_alloc, ::boost::forward<Args>(args)...);
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}
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template < typename OutermostAlloc
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, typename InnerAlloc
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, typename T
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, class ...Args
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>
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inline void dispatch_allocator_prefix_suffix
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( boost::false_type use_alloc_prefix, OutermostAlloc& outermost_alloc
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, InnerAlloc &inner_alloc, T* p, BOOST_FWD_REF(Args)...args)
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{
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(void)use_alloc_prefix;
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allocator_traits<OutermostAlloc>::construct
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(outermost_alloc, p, ::boost::forward<Args>(args)..., inner_alloc);
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}
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template < typename OutermostAlloc
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, typename InnerAlloc
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, typename T
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, class ...Args
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>
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inline void dispatch_uses_allocator
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( boost::true_type uses_allocator, OutermostAlloc& outermost_alloc
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, InnerAlloc& inner_alloc, T* p, BOOST_FWD_REF(Args)...args)
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{
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(void)uses_allocator;
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//BOOST_STATIC_ASSERT((is_constructible_with_allocator_prefix<T, InnerAlloc, Args...>::value ||
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// is_constructible_with_allocator_suffix<T, InnerAlloc, Args...>::value ));
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dispatch_allocator_prefix_suffix
|
|
( is_constructible_with_allocator_prefix<T, InnerAlloc, Args...>()
|
|
, outermost_alloc, inner_alloc, p, ::boost::forward<Args>(args)...);
|
|
}
|
|
|
|
template < typename OutermostAlloc
|
|
, typename InnerAlloc
|
|
, typename T
|
|
, class ...Args
|
|
>
|
|
inline void dispatch_uses_allocator
|
|
( boost::false_type uses_allocator, OutermostAlloc & outermost_alloc
|
|
, InnerAlloc & inner_alloc
|
|
,T* p, BOOST_FWD_REF(Args)...args)
|
|
{
|
|
(void)uses_allocator; (void)inner_alloc;
|
|
allocator_traits<OutermostAlloc>::construct
|
|
(outermost_alloc, p, ::boost::forward<Args>(args)...);
|
|
}
|
|
|
|
#else //#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
|
|
|
|
#define BOOST_PP_LOCAL_MACRO(n) \
|
|
template < typename OutermostAlloc \
|
|
, typename InnerAlloc \
|
|
, typename T \
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(n, class P) \
|
|
> \
|
|
inline void dispatch_allocator_prefix_suffix( \
|
|
boost::true_type use_alloc_prefix, \
|
|
OutermostAlloc& outermost_alloc, \
|
|
InnerAlloc& inner_alloc, \
|
|
T* p \
|
|
BOOST_PP_ENUM_TRAILING(n, BOOST_CONTAINER_PP_PARAM_LIST, _)) \
|
|
{ \
|
|
(void)use_alloc_prefix, \
|
|
allocator_traits<OutermostAlloc>::construct \
|
|
(outermost_alloc, p, allocator_arg, inner_alloc \
|
|
BOOST_PP_ENUM_TRAILING(n, BOOST_CONTAINER_PP_PARAM_FORWARD, _)); \
|
|
} \
|
|
\
|
|
template < typename OutermostAlloc \
|
|
, typename InnerAlloc \
|
|
, typename T \
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(n, class P) \
|
|
> \
|
|
inline void dispatch_allocator_prefix_suffix( \
|
|
boost::false_type use_alloc_prefix, \
|
|
OutermostAlloc& outermost_alloc, \
|
|
InnerAlloc& inner_alloc, \
|
|
T* p BOOST_PP_ENUM_TRAILING(n, BOOST_CONTAINER_PP_PARAM_LIST, _)) \
|
|
{ \
|
|
(void)use_alloc_prefix; \
|
|
allocator_traits<OutermostAlloc>::construct \
|
|
(outermost_alloc, p \
|
|
BOOST_PP_ENUM_TRAILING(n, BOOST_CONTAINER_PP_PARAM_FORWARD, _) \
|
|
, inner_alloc); \
|
|
} \
|
|
\
|
|
template < typename OutermostAlloc \
|
|
, typename InnerAlloc \
|
|
, typename T \
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(n, class P) \
|
|
> \
|
|
inline void dispatch_uses_allocator(boost::true_type uses_allocator, \
|
|
OutermostAlloc& outermost_alloc, \
|
|
InnerAlloc& inner_alloc, \
|
|
T* p BOOST_PP_ENUM_TRAILING(n, BOOST_CONTAINER_PP_PARAM_LIST, _)) \
|
|
{ \
|
|
(void)uses_allocator; \
|
|
dispatch_allocator_prefix_suffix \
|
|
(is_constructible_with_allocator_prefix \
|
|
< T, InnerAlloc BOOST_PP_ENUM_TRAILING_PARAMS(n, P)>() \
|
|
, outermost_alloc, inner_alloc, p \
|
|
BOOST_PP_ENUM_TRAILING(n, BOOST_CONTAINER_PP_PARAM_FORWARD, _)); \
|
|
} \
|
|
\
|
|
template < typename OutermostAlloc \
|
|
, typename InnerAlloc \
|
|
, typename T \
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(n, class P) \
|
|
> \
|
|
inline void dispatch_uses_allocator(boost::false_type uses_allocator \
|
|
,OutermostAlloc & outermost_alloc \
|
|
,InnerAlloc & inner_alloc \
|
|
,T* p BOOST_PP_ENUM_TRAILING(n, BOOST_CONTAINER_PP_PARAM_LIST, _)) \
|
|
{ \
|
|
(void)uses_allocator; (void)inner_alloc; \
|
|
allocator_traits<OutermostAlloc>::construct \
|
|
(outermost_alloc, p BOOST_PP_ENUM_TRAILING(n, BOOST_CONTAINER_PP_PARAM_FORWARD, _)); \
|
|
} \
|
|
//!
|
|
#define BOOST_PP_LOCAL_LIMITS (0, BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS)
|
|
#include BOOST_PP_LOCAL_ITERATE()
|
|
|
|
#endif //#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
|
|
|
|
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
|
|
|
|
template <typename OuterAlloc, class ...InnerAllocs>
|
|
class scoped_allocator_adaptor_base
|
|
: public OuterAlloc
|
|
{
|
|
typedef allocator_traits<OuterAlloc> outer_traits_type;
|
|
BOOST_COPYABLE_AND_MOVABLE(scoped_allocator_adaptor_base)
|
|
|
|
public:
|
|
template <class OuterA2>
|
|
struct rebind_base
|
|
{
|
|
typedef scoped_allocator_adaptor_base<OuterA2, InnerAllocs...> other;
|
|
};
|
|
|
|
typedef OuterAlloc outer_allocator_type;
|
|
typedef scoped_allocator_adaptor<InnerAllocs...> inner_allocator_type;
|
|
typedef allocator_traits<inner_allocator_type> inner_traits_type;
|
|
typedef scoped_allocator_adaptor
|
|
<OuterAlloc, InnerAllocs...> scoped_allocator_type;
|
|
typedef boost::integral_constant<
|
|
bool,
|
|
outer_traits_type::propagate_on_container_copy_assignment::value ||
|
|
inner_allocator_type::propagate_on_container_copy_assignment::value
|
|
> propagate_on_container_copy_assignment;
|
|
typedef boost::integral_constant<
|
|
bool,
|
|
outer_traits_type::propagate_on_container_move_assignment::value ||
|
|
inner_allocator_type::propagate_on_container_move_assignment::value
|
|
> propagate_on_container_move_assignment;
|
|
typedef boost::integral_constant<
|
|
bool,
|
|
outer_traits_type::propagate_on_container_swap::value ||
|
|
inner_allocator_type::propagate_on_container_swap::value
|
|
> propagate_on_container_swap;
|
|
|
|
scoped_allocator_adaptor_base()
|
|
{}
|
|
|
|
template <class OuterA2>
|
|
scoped_allocator_adaptor_base(BOOST_FWD_REF(OuterA2) outerAlloc, const InnerAllocs &...args)
|
|
: outer_allocator_type(::boost::forward<OuterA2>(outerAlloc))
|
|
, m_inner(args...)
|
|
{}
|
|
|
|
scoped_allocator_adaptor_base(const scoped_allocator_adaptor_base& other)
|
|
: outer_allocator_type(other.outer_allocator())
|
|
, m_inner(other.inner_allocator())
|
|
{}
|
|
|
|
scoped_allocator_adaptor_base(BOOST_RV_REF(scoped_allocator_adaptor_base) other)
|
|
: outer_allocator_type(::boost::move(other.outer_allocator()))
|
|
, m_inner(::boost::move(other.inner_allocator()))
|
|
{}
|
|
|
|
template <class OuterA2>
|
|
scoped_allocator_adaptor_base
|
|
(const scoped_allocator_adaptor_base<OuterA2, InnerAllocs...>& other)
|
|
: outer_allocator_type(other.outer_allocator())
|
|
, m_inner(other.inner_allocator())
|
|
{}
|
|
|
|
template <class OuterA2>
|
|
scoped_allocator_adaptor_base
|
|
(BOOST_RV_REF_BEG scoped_allocator_adaptor_base
|
|
<OuterA2, InnerAllocs...> BOOST_RV_REF_END other)
|
|
: outer_allocator_type(other.outer_allocator())
|
|
, m_inner(other.inner_allocator())
|
|
{}
|
|
|
|
public:
|
|
struct internal_type_t{};
|
|
|
|
template <class OuterA2>
|
|
scoped_allocator_adaptor_base
|
|
( internal_type_t
|
|
, BOOST_FWD_REF(OuterA2) outerAlloc
|
|
, const inner_allocator_type &inner)
|
|
: outer_allocator_type(::boost::forward<OuterA2>(outerAlloc))
|
|
, m_inner(inner)
|
|
{}
|
|
|
|
public:
|
|
|
|
scoped_allocator_adaptor_base &operator=
|
|
(BOOST_COPY_ASSIGN_REF(scoped_allocator_adaptor_base) other)
|
|
{
|
|
outer_allocator_type::operator=(other.outer_allocator());
|
|
m_inner = other.inner_allocator();
|
|
return *this;
|
|
}
|
|
|
|
scoped_allocator_adaptor_base &operator=(BOOST_RV_REF(scoped_allocator_adaptor_base) other)
|
|
{
|
|
outer_allocator_type::operator=(boost::move(other.outer_allocator()));
|
|
m_inner = ::boost::move(other.inner_allocator());
|
|
return *this;
|
|
}
|
|
|
|
void swap(scoped_allocator_adaptor_base &r)
|
|
{
|
|
boost::container::swap_dispatch(this->outer_allocator(), r.outer_allocator());
|
|
boost::container::swap_dispatch(this->m_inner, r.inner_allocator());
|
|
}
|
|
|
|
friend void swap(scoped_allocator_adaptor_base &l, scoped_allocator_adaptor_base &r)
|
|
{ l.swap(r); }
|
|
|
|
inner_allocator_type& inner_allocator()
|
|
{ return m_inner; }
|
|
|
|
inner_allocator_type const& inner_allocator() const
|
|
{ return m_inner; }
|
|
|
|
outer_allocator_type & outer_allocator()
|
|
{ return static_cast<outer_allocator_type&>(*this); }
|
|
|
|
const outer_allocator_type &outer_allocator() const
|
|
{ return static_cast<const outer_allocator_type&>(*this); }
|
|
|
|
scoped_allocator_type select_on_container_copy_construction() const
|
|
{
|
|
return scoped_allocator_type
|
|
(internal_type_t()
|
|
,outer_traits_type::select_on_container_copy_construction(this->outer_allocator())
|
|
,inner_traits_type::select_on_container_copy_construction(this->inner_allocator())
|
|
);
|
|
}
|
|
|
|
private:
|
|
inner_allocator_type m_inner;
|
|
};
|
|
|
|
#else //#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
|
|
|
|
//Let's add a dummy first template parameter to allow creating
|
|
//specializations up to maximum InnerAlloc count
|
|
template <
|
|
typename OuterAlloc
|
|
, bool Dummy
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, class Q)
|
|
>
|
|
class scoped_allocator_adaptor_base;
|
|
|
|
//Specializations for the adaptor with InnerAlloc allocators
|
|
|
|
#define BOOST_PP_LOCAL_MACRO(n) \
|
|
template <typename OuterAlloc \
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(n, class Q) \
|
|
> \
|
|
class scoped_allocator_adaptor_base<OuterAlloc, true \
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(n, Q) \
|
|
BOOST_PP_ENUM_TRAILING( BOOST_PP_SUB(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, n) \
|
|
, BOOST_CONTAINER_PP_IDENTITY, nat) \
|
|
> \
|
|
: public OuterAlloc \
|
|
{ \
|
|
typedef allocator_traits<OuterAlloc> outer_traits_type; \
|
|
BOOST_COPYABLE_AND_MOVABLE(scoped_allocator_adaptor_base) \
|
|
\
|
|
public: \
|
|
template <class OuterA2> \
|
|
struct rebind_base \
|
|
{ \
|
|
typedef scoped_allocator_adaptor_base<OuterA2, true BOOST_PP_ENUM_TRAILING_PARAMS(n, Q) \
|
|
BOOST_PP_ENUM_TRAILING \
|
|
( BOOST_PP_SUB(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, n) \
|
|
, BOOST_CONTAINER_PP_IDENTITY, nat) \
|
|
> other; \
|
|
}; \
|
|
\
|
|
typedef OuterAlloc outer_allocator_type; \
|
|
typedef scoped_allocator_adaptor<BOOST_PP_ENUM_PARAMS(n, Q) \
|
|
BOOST_PP_ENUM_TRAILING \
|
|
( BOOST_PP_SUB(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, n) \
|
|
, BOOST_CONTAINER_PP_IDENTITY, nat) \
|
|
> inner_allocator_type; \
|
|
typedef scoped_allocator_adaptor<OuterAlloc, BOOST_PP_ENUM_PARAMS(n, Q) \
|
|
BOOST_PP_ENUM_TRAILING \
|
|
( BOOST_PP_SUB(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, n) \
|
|
, BOOST_CONTAINER_PP_IDENTITY, nat) \
|
|
> scoped_allocator_type; \
|
|
typedef allocator_traits<inner_allocator_type> inner_traits_type; \
|
|
typedef boost::integral_constant< \
|
|
bool, \
|
|
outer_traits_type::propagate_on_container_copy_assignment::value || \
|
|
inner_allocator_type::propagate_on_container_copy_assignment::value \
|
|
> propagate_on_container_copy_assignment; \
|
|
typedef boost::integral_constant< \
|
|
bool, \
|
|
outer_traits_type::propagate_on_container_move_assignment::value || \
|
|
inner_allocator_type::propagate_on_container_move_assignment::value \
|
|
> propagate_on_container_move_assignment; \
|
|
typedef boost::integral_constant< \
|
|
bool, \
|
|
outer_traits_type::propagate_on_container_swap::value || \
|
|
inner_allocator_type::propagate_on_container_swap::value \
|
|
> propagate_on_container_swap; \
|
|
\
|
|
scoped_allocator_adaptor_base() \
|
|
{} \
|
|
\
|
|
template <class OuterA2> \
|
|
scoped_allocator_adaptor_base(BOOST_FWD_REF(OuterA2) outerAlloc \
|
|
BOOST_PP_ENUM_TRAILING(n, BOOST_CONTAINER_PP_CONST_REF_PARAM_LIST_Q, _)) \
|
|
: outer_allocator_type(::boost::forward<OuterA2>(outerAlloc)) \
|
|
, m_inner(BOOST_PP_ENUM_PARAMS(n, q)) \
|
|
{} \
|
|
\
|
|
scoped_allocator_adaptor_base(const scoped_allocator_adaptor_base& other) \
|
|
: outer_allocator_type(other.outer_allocator()) \
|
|
, m_inner(other.inner_allocator()) \
|
|
{} \
|
|
\
|
|
scoped_allocator_adaptor_base(BOOST_RV_REF(scoped_allocator_adaptor_base) other) \
|
|
: outer_allocator_type(::boost::move(other.outer_allocator())) \
|
|
, m_inner(::boost::move(other.inner_allocator())) \
|
|
{} \
|
|
\
|
|
template <class OuterA2> \
|
|
scoped_allocator_adaptor_base(const scoped_allocator_adaptor_base<OuterA2, true \
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(n, Q) \
|
|
BOOST_PP_ENUM_TRAILING \
|
|
( BOOST_PP_SUB(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, n) \
|
|
, BOOST_CONTAINER_PP_IDENTITY, nat) \
|
|
>& other) \
|
|
: outer_allocator_type(other.outer_allocator()) \
|
|
, m_inner(other.inner_allocator()) \
|
|
{} \
|
|
\
|
|
template <class OuterA2> \
|
|
scoped_allocator_adaptor_base \
|
|
(BOOST_RV_REF_BEG scoped_allocator_adaptor_base<OuterA2, true \
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(n, Q) \
|
|
BOOST_PP_ENUM_TRAILING \
|
|
( BOOST_PP_SUB(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, n) \
|
|
, BOOST_CONTAINER_PP_IDENTITY, nat) \
|
|
> BOOST_RV_REF_END other) \
|
|
: outer_allocator_type(other.outer_allocator()) \
|
|
, m_inner(other.inner_allocator()) \
|
|
{} \
|
|
\
|
|
public: \
|
|
struct internal_type_t{}; \
|
|
\
|
|
template <class OuterA2> \
|
|
scoped_allocator_adaptor_base \
|
|
( internal_type_t \
|
|
, BOOST_FWD_REF(OuterA2) outerAlloc \
|
|
, const inner_allocator_type &inner) \
|
|
: outer_allocator_type(::boost::forward<OuterA2>(outerAlloc)) \
|
|
, m_inner(inner) \
|
|
{} \
|
|
\
|
|
public: \
|
|
scoped_allocator_adaptor_base &operator= \
|
|
(BOOST_COPY_ASSIGN_REF(scoped_allocator_adaptor_base) other) \
|
|
{ \
|
|
outer_allocator_type::operator=(other.outer_allocator()); \
|
|
m_inner = other.inner_allocator(); \
|
|
return *this; \
|
|
} \
|
|
\
|
|
scoped_allocator_adaptor_base &operator=(BOOST_RV_REF(scoped_allocator_adaptor_base) other) \
|
|
{ \
|
|
outer_allocator_type::operator=(boost::move(other.outer_allocator())); \
|
|
m_inner = ::boost::move(other.inner_allocator()); \
|
|
return *this; \
|
|
} \
|
|
\
|
|
void swap(scoped_allocator_adaptor_base &r) \
|
|
{ \
|
|
boost::container::swap_dispatch(this->outer_allocator(), r.outer_allocator()); \
|
|
boost::container::swap_dispatch(this->m_inner, r.inner_allocator()); \
|
|
} \
|
|
\
|
|
friend void swap(scoped_allocator_adaptor_base &l, scoped_allocator_adaptor_base &r) \
|
|
{ l.swap(r); } \
|
|
\
|
|
inner_allocator_type& inner_allocator() \
|
|
{ return m_inner; } \
|
|
\
|
|
inner_allocator_type const& inner_allocator() const \
|
|
{ return m_inner; } \
|
|
\
|
|
outer_allocator_type & outer_allocator() \
|
|
{ return static_cast<outer_allocator_type&>(*this); } \
|
|
\
|
|
const outer_allocator_type &outer_allocator() const \
|
|
{ return static_cast<const outer_allocator_type&>(*this); } \
|
|
\
|
|
scoped_allocator_type select_on_container_copy_construction() const \
|
|
{ \
|
|
return scoped_allocator_type \
|
|
(internal_type_t() \
|
|
,outer_traits_type::select_on_container_copy_construction(this->outer_allocator()) \
|
|
,inner_traits_type::select_on_container_copy_construction(this->inner_allocator()) \
|
|
); \
|
|
} \
|
|
private: \
|
|
inner_allocator_type m_inner; \
|
|
}; \
|
|
//!
|
|
#define BOOST_PP_LOCAL_LIMITS (1, BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS)
|
|
#include BOOST_PP_LOCAL_ITERATE()
|
|
|
|
#endif //#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
|
|
|
|
//Specialization for adaptor without any InnerAlloc
|
|
template <typename OuterAlloc>
|
|
class scoped_allocator_adaptor_base
|
|
< OuterAlloc
|
|
#if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
|
|
, true
|
|
BOOST_PP_ENUM_TRAILING(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, BOOST_CONTAINER_PP_IDENTITY, nat)
|
|
#endif
|
|
>
|
|
: public OuterAlloc
|
|
{
|
|
BOOST_COPYABLE_AND_MOVABLE(scoped_allocator_adaptor_base)
|
|
public:
|
|
|
|
template <class U>
|
|
struct rebind_base
|
|
{
|
|
typedef scoped_allocator_adaptor_base
|
|
<typename allocator_traits<OuterAlloc>::template portable_rebind_alloc<U>::type
|
|
#if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
|
|
, true
|
|
BOOST_PP_ENUM_TRAILING(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, BOOST_CONTAINER_PP_IDENTITY, container_detail::nat)
|
|
#endif
|
|
> other;
|
|
};
|
|
|
|
typedef OuterAlloc outer_allocator_type;
|
|
typedef allocator_traits<OuterAlloc> outer_traits_type;
|
|
typedef scoped_allocator_adaptor<OuterAlloc> inner_allocator_type;
|
|
typedef inner_allocator_type scoped_allocator_type;
|
|
typedef allocator_traits<inner_allocator_type> inner_traits_type;
|
|
typedef typename outer_traits_type::
|
|
propagate_on_container_copy_assignment propagate_on_container_copy_assignment;
|
|
typedef typename outer_traits_type::
|
|
propagate_on_container_move_assignment propagate_on_container_move_assignment;
|
|
typedef typename outer_traits_type::
|
|
propagate_on_container_swap propagate_on_container_swap;
|
|
|
|
scoped_allocator_adaptor_base()
|
|
{}
|
|
|
|
template <class OuterA2>
|
|
scoped_allocator_adaptor_base(BOOST_FWD_REF(OuterA2) outerAlloc)
|
|
: outer_allocator_type(::boost::forward<OuterA2>(outerAlloc))
|
|
{}
|
|
|
|
scoped_allocator_adaptor_base(const scoped_allocator_adaptor_base& other)
|
|
: outer_allocator_type(other.outer_allocator())
|
|
{}
|
|
|
|
scoped_allocator_adaptor_base(BOOST_RV_REF(scoped_allocator_adaptor_base) other)
|
|
: outer_allocator_type(::boost::move(other.outer_allocator()))
|
|
{}
|
|
|
|
template <class OuterA2>
|
|
scoped_allocator_adaptor_base
|
|
(const scoped_allocator_adaptor_base<
|
|
OuterA2
|
|
#if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
|
|
, true
|
|
BOOST_PP_ENUM_TRAILING(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, BOOST_CONTAINER_PP_IDENTITY, container_detail::nat)
|
|
#endif
|
|
>& other)
|
|
: outer_allocator_type(other.outer_allocator())
|
|
{}
|
|
|
|
template <class OuterA2>
|
|
scoped_allocator_adaptor_base
|
|
(BOOST_RV_REF_BEG scoped_allocator_adaptor_base<
|
|
OuterA2
|
|
#if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
|
|
, true
|
|
BOOST_PP_ENUM_TRAILING(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, BOOST_CONTAINER_PP_IDENTITY, container_detail::nat)
|
|
#endif
|
|
> BOOST_RV_REF_END other)
|
|
: outer_allocator_type(other.outer_allocator())
|
|
{}
|
|
|
|
public:
|
|
struct internal_type_t{};
|
|
|
|
template <class OuterA2>
|
|
scoped_allocator_adaptor_base(internal_type_t, BOOST_FWD_REF(OuterA2) outerAlloc, const inner_allocator_type &)
|
|
: outer_allocator_type(::boost::forward<OuterA2>(outerAlloc))
|
|
{}
|
|
|
|
public:
|
|
scoped_allocator_adaptor_base &operator=(BOOST_COPY_ASSIGN_REF(scoped_allocator_adaptor_base) other)
|
|
{
|
|
outer_allocator_type::operator=(other.outer_allocator());
|
|
return *this;
|
|
}
|
|
|
|
scoped_allocator_adaptor_base &operator=(BOOST_RV_REF(scoped_allocator_adaptor_base) other)
|
|
{
|
|
outer_allocator_type::operator=(boost::move(other.outer_allocator()));
|
|
return *this;
|
|
}
|
|
|
|
void swap(scoped_allocator_adaptor_base &r)
|
|
{
|
|
boost::container::swap_dispatch(this->outer_allocator(), r.outer_allocator());
|
|
}
|
|
|
|
friend void swap(scoped_allocator_adaptor_base &l, scoped_allocator_adaptor_base &r)
|
|
{ l.swap(r); }
|
|
|
|
inner_allocator_type& inner_allocator()
|
|
{ return static_cast<inner_allocator_type&>(*this); }
|
|
|
|
inner_allocator_type const& inner_allocator() const
|
|
{ return static_cast<const inner_allocator_type&>(*this); }
|
|
|
|
outer_allocator_type & outer_allocator()
|
|
{ return static_cast<outer_allocator_type&>(*this); }
|
|
|
|
const outer_allocator_type &outer_allocator() const
|
|
{ return static_cast<const outer_allocator_type&>(*this); }
|
|
|
|
scoped_allocator_type select_on_container_copy_construction() const
|
|
{
|
|
return scoped_allocator_type
|
|
(internal_type_t()
|
|
,outer_traits_type::select_on_container_copy_construction(this->outer_allocator())
|
|
//Don't use inner_traits_type::select_on_container_copy_construction(this->inner_allocator())
|
|
//as inner_allocator() is equal to *this and that would trigger an infinite loop
|
|
, this->inner_allocator()
|
|
);
|
|
}
|
|
};
|
|
|
|
} //namespace container_detail {
|
|
|
|
///@endcond
|
|
|
|
//Scoped allocator
|
|
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
|
|
#if !defined(BOOST_CONTAINER_UNIMPLEMENTED_PACK_EXPANSION_TO_FIXED_LIST)
|
|
|
|
//! This class is a C++03-compatible implementation of std::scoped_allocator_adaptor.
|
|
//! The class template scoped_allocator_adaptor is an allocator template that specifies
|
|
//! the memory resource (the outer allocator) to be used by a container (as any other
|
|
//! allocator does) and also specifies an inner allocator resource to be passed to
|
|
//! the constructor of every element within the container.
|
|
//!
|
|
//! This adaptor is
|
|
//! instantiated with one outer and zero or more inner allocator types. If
|
|
//! instantiated with only one allocator type, the inner allocator becomes the
|
|
//! scoped_allocator_adaptor itself, thus using the same allocator resource for the
|
|
//! container and every element within the container and, if the elements themselves
|
|
//! are containers, each of their elements recursively. If instantiated with more than
|
|
//! one allocator, the first allocator is the outer allocator for use by the container,
|
|
//! the second allocator is passed to the constructors of the container's elements,
|
|
//! and, if the elements themselves are containers, the third allocator is passed to
|
|
//! the elements' elements, and so on. If containers are nested to a depth greater
|
|
//! than the number of allocators, the last allocator is used repeatedly, as in the
|
|
//! single-allocator case, for any remaining recursions.
|
|
//!
|
|
//! [<b>Note</b>: The
|
|
//! scoped_allocator_adaptor is derived from the outer allocator type so it can be
|
|
//! substituted for the outer allocator type in most expressions. -end note]
|
|
//!
|
|
//! In the construct member functions, `OUTERMOST(x)` is x if x does not have
|
|
//! an `outer_allocator()` member function and
|
|
//! `OUTERMOST(x.outer_allocator())` otherwise; `OUTERMOST_ALLOC_TRAITS(x)` is
|
|
//! `allocator_traits<decltype(OUTERMOST(x))>`.
|
|
//!
|
|
//! [<b>Note</b>: `OUTERMOST(x)` and
|
|
//! `OUTERMOST_ALLOC_TRAITS(x)` are recursive operations. It is incumbent upon
|
|
//! the definition of `outer_allocator()` to ensure that the recursion terminates.
|
|
//! It will terminate for all instantiations of scoped_allocator_adaptor. -end note]
|
|
template <typename OuterAlloc, typename ...InnerAllocs>
|
|
class scoped_allocator_adaptor
|
|
|
|
#else // #if !defined(BOOST_CONTAINER_UNIMPLEMENTED_PACK_EXPANSION_TO_FIXED_LIST)
|
|
|
|
template <typename OuterAlloc, typename ...InnerAllocs>
|
|
class scoped_allocator_adaptor<OuterAlloc, InnerAllocs...>
|
|
|
|
#endif // #if !defined(BOOST_CONTAINER_UNIMPLEMENTED_PACK_EXPANSION_TO_FIXED_LIST)
|
|
|
|
#else // #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
|
|
template <typename OuterAlloc
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, class Q)
|
|
>
|
|
class scoped_allocator_adaptor
|
|
#endif
|
|
: public container_detail::scoped_allocator_adaptor_base
|
|
<OuterAlloc
|
|
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
, InnerAllocs...
|
|
#else
|
|
, true BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, Q)
|
|
#endif
|
|
>
|
|
{
|
|
BOOST_COPYABLE_AND_MOVABLE(scoped_allocator_adaptor)
|
|
|
|
public:
|
|
/// @cond
|
|
typedef container_detail::scoped_allocator_adaptor_base
|
|
<OuterAlloc
|
|
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
, InnerAllocs...
|
|
#else
|
|
, true BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, Q)
|
|
#endif
|
|
> base_type;
|
|
typedef typename base_type::internal_type_t internal_type_t;
|
|
/// @endcond
|
|
typedef OuterAlloc outer_allocator_type;
|
|
//! Type: For exposition only
|
|
//!
|
|
typedef allocator_traits<OuterAlloc> outer_traits_type;
|
|
//! Type: `scoped_allocator_adaptor<OuterAlloc>` if `sizeof...(InnerAllocs)` is zero; otherwise,
|
|
//! `scoped_allocator_adaptor<InnerAllocs...>`.
|
|
typedef typename base_type::inner_allocator_type inner_allocator_type;
|
|
typedef allocator_traits<inner_allocator_type> inner_traits_type;
|
|
typedef typename outer_traits_type::value_type value_type;
|
|
typedef typename outer_traits_type::size_type size_type;
|
|
typedef typename outer_traits_type::difference_type difference_type;
|
|
typedef typename outer_traits_type::pointer pointer;
|
|
typedef typename outer_traits_type::const_pointer const_pointer;
|
|
typedef typename outer_traits_type::void_pointer void_pointer;
|
|
typedef typename outer_traits_type::const_void_pointer const_void_pointer;
|
|
//! Type: `true_type` if `allocator_traits<Allocator>::propagate_on_container_copy_assignment::value` is
|
|
//! true for any `Allocator` in the set of `OuterAlloc` and `InnerAllocs...`; otherwise, false_type.
|
|
typedef typename base_type::
|
|
propagate_on_container_copy_assignment propagate_on_container_copy_assignment;
|
|
//! Type: `true_type` if `allocator_traits<Allocator>::propagate_on_container_move_assignment::value` is
|
|
//! true for any `Allocator` in the set of `OuterAlloc` and `InnerAllocs...`; otherwise, false_type.
|
|
typedef typename base_type::
|
|
propagate_on_container_move_assignment propagate_on_container_move_assignment;
|
|
//! Type: `true_type` if `allocator_traits<Allocator>::propagate_on_container_swap::value` is true for any
|
|
//! `Allocator` in the set of `OuterAlloc` and `InnerAllocs...`; otherwise, false_type.
|
|
typedef typename base_type::
|
|
propagate_on_container_swap propagate_on_container_swap;
|
|
|
|
//! Type: Rebinds scoped allocator to
|
|
//! `typedef scoped_allocator_adaptor
|
|
//! < typename outer_traits_type::template portable_rebind_alloc<U>::type
|
|
//! , InnerAllocs... >`
|
|
template <class U>
|
|
struct rebind
|
|
{
|
|
typedef scoped_allocator_adaptor
|
|
< typename outer_traits_type::template portable_rebind_alloc<U>::type
|
|
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
, InnerAllocs...
|
|
#else
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, Q)
|
|
#endif
|
|
> other;
|
|
};
|
|
|
|
//! <b>Effects</b>: value-initializes the OuterAlloc base class
|
|
//! and the inner allocator object.
|
|
scoped_allocator_adaptor()
|
|
{}
|
|
|
|
~scoped_allocator_adaptor()
|
|
{}
|
|
|
|
//! <b>Effects</b>: initializes each allocator within the adaptor with
|
|
//! the corresponding allocator from other.
|
|
scoped_allocator_adaptor(const scoped_allocator_adaptor& other)
|
|
: base_type(other.base())
|
|
{}
|
|
|
|
//! <b>Effects</b>: move constructs each allocator within the adaptor with
|
|
//! the corresponding allocator from other.
|
|
scoped_allocator_adaptor(BOOST_RV_REF(scoped_allocator_adaptor) other)
|
|
: base_type(::boost::move(other.base()))
|
|
{}
|
|
|
|
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
|
|
//! <b>Requires</b>: OuterAlloc shall be constructible from OuterA2.
|
|
//!
|
|
//! <b>Effects</b>: initializes the OuterAlloc base class with boost::forward<OuterA2>(outerAlloc) and inner
|
|
//! with innerAllocs...(hence recursively initializing each allocator within the adaptor with the
|
|
//! corresponding allocator from the argument list).
|
|
template <class OuterA2>
|
|
scoped_allocator_adaptor(BOOST_FWD_REF(OuterA2) outerAlloc, const InnerAllocs & ...innerAllocs)
|
|
: base_type(::boost::forward<OuterA2>(outerAlloc), innerAllocs...)
|
|
{}
|
|
#else // #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
|
|
#define BOOST_PP_LOCAL_MACRO(n) \
|
|
template <class OuterA2> \
|
|
scoped_allocator_adaptor(BOOST_FWD_REF(OuterA2) outerAlloc \
|
|
BOOST_PP_ENUM_TRAILING(n, BOOST_CONTAINER_PP_CONST_REF_PARAM_LIST_Q, _)) \
|
|
: base_type(::boost::forward<OuterA2>(outerAlloc) \
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(n, q) \
|
|
) \
|
|
{} \
|
|
//!
|
|
#define BOOST_PP_LOCAL_LIMITS (0, BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS)
|
|
#include BOOST_PP_LOCAL_ITERATE()
|
|
|
|
#endif // #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
|
|
//! <b>Requires</b>: OuterAlloc shall be constructible from OuterA2.
|
|
//!
|
|
//! <b>Effects</b>: initializes each allocator within the adaptor with the corresponding allocator from other.
|
|
template <class OuterA2>
|
|
scoped_allocator_adaptor(const scoped_allocator_adaptor<OuterA2
|
|
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
, InnerAllocs...
|
|
#else
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, Q)
|
|
#endif
|
|
> &other)
|
|
: base_type(other.base())
|
|
{}
|
|
|
|
//! <b>Requires</b>: OuterAlloc shall be constructible from OuterA2.
|
|
//!
|
|
//! <b>Effects</b>: initializes each allocator within the adaptor with the corresponding allocator
|
|
//! rvalue from other.
|
|
template <class OuterA2>
|
|
scoped_allocator_adaptor(BOOST_RV_REF_BEG scoped_allocator_adaptor<OuterA2
|
|
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
, InnerAllocs...
|
|
#else
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, Q)
|
|
#endif
|
|
> BOOST_RV_REF_END other)
|
|
: base_type(::boost::move(other.base()))
|
|
{}
|
|
|
|
scoped_allocator_adaptor &operator=(BOOST_COPY_ASSIGN_REF(scoped_allocator_adaptor) other)
|
|
{ return static_cast<scoped_allocator_adaptor&>(base_type::operator=(static_cast<const base_type &>(other))); }
|
|
|
|
scoped_allocator_adaptor &operator=(BOOST_RV_REF(scoped_allocator_adaptor) other)
|
|
{ return static_cast<scoped_allocator_adaptor&>(base_type::operator=(boost::move(static_cast<base_type&>(other)))); }
|
|
|
|
#ifdef BOOST_CONTAINER_DOXYGEN_INVOKED
|
|
//! <b>Effects</b>: swaps *this with r.
|
|
//!
|
|
void swap(scoped_allocator_adaptor &r);
|
|
|
|
//! <b>Effects</b>: swaps *this with r.
|
|
//!
|
|
friend void swap(scoped_allocator_adaptor &l, scoped_allocator_adaptor &r);
|
|
|
|
//! <b>Returns</b>:
|
|
//! `static_cast<OuterAlloc&>(*this)`.
|
|
outer_allocator_type & outer_allocator();
|
|
|
|
//! <b>Returns</b>:
|
|
//! `static_cast<const OuterAlloc&>(*this)`.
|
|
const outer_allocator_type &outer_allocator() const;
|
|
|
|
//! <b>Returns</b>:
|
|
//! *this if `sizeof...(InnerAllocs)` is zero; otherwise, inner.
|
|
inner_allocator_type& inner_allocator();
|
|
|
|
//! <b>Returns</b>:
|
|
//! *this if `sizeof...(InnerAllocs)` is zero; otherwise, inner.
|
|
inner_allocator_type const& inner_allocator() const;
|
|
|
|
#endif //BOOST_CONTAINER_DOXYGEN_INVOKED
|
|
|
|
//! <b>Returns</b>:
|
|
//! `allocator_traits<OuterAlloc>::max_size(outer_allocator())`.
|
|
size_type max_size() const
|
|
{
|
|
return outer_traits_type::max_size(this->outer_allocator());
|
|
}
|
|
|
|
//! <b>Effects</b>:
|
|
//! calls `OUTERMOST_ALLOC_TRAITS(*this)::destroy(OUTERMOST(*this), p)`.
|
|
template <class T>
|
|
void destroy(T* p)
|
|
{
|
|
allocator_traits<typename outermost_allocator<OuterAlloc>::type>
|
|
::destroy(get_outermost_allocator(this->outer_allocator()), p);
|
|
}
|
|
|
|
//! <b>Returns</b>:
|
|
//! `allocator_traits<OuterAlloc>::allocate(outer_allocator(), n)`.
|
|
pointer allocate(size_type n)
|
|
{
|
|
return outer_traits_type::allocate(this->outer_allocator(), n);
|
|
}
|
|
|
|
//! <b>Returns</b>:
|
|
//! `allocator_traits<OuterAlloc>::allocate(outer_allocator(), n, hint)`.
|
|
pointer allocate(size_type n, const_void_pointer hint)
|
|
{
|
|
return outer_traits_type::allocate(this->outer_allocator(), n, hint);
|
|
}
|
|
|
|
//! <b>Effects</b>:
|
|
//! `allocator_traits<OuterAlloc>::deallocate(outer_allocator(), p, n)`.
|
|
void deallocate(pointer p, size_type n)
|
|
{
|
|
outer_traits_type::deallocate(this->outer_allocator(), p, n);
|
|
}
|
|
|
|
#ifdef BOOST_CONTAINER_DOXYGEN_INVOKED
|
|
//! <b>Returns</b>: Allocator new scoped_allocator_adaptor object where each allocator
|
|
//! A in the adaptor is initialized from the result of calling
|
|
//! `allocator_traits<Allocator>::select_on_container_copy_construction()` on
|
|
//! the corresponding allocator in *this.
|
|
scoped_allocator_adaptor select_on_container_copy_construction() const;
|
|
#endif //BOOST_CONTAINER_DOXYGEN_INVOKED
|
|
|
|
/// @cond
|
|
base_type &base() { return *this; }
|
|
|
|
const base_type &base() const { return *this; }
|
|
/// @endcond
|
|
|
|
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
|
|
//! <b>Effects</b>:
|
|
//! 1) If `uses_allocator<T, inner_allocator_type>::value` is false calls
|
|
//! `OUTERMOST_ALLOC_TRAITS(*this)::construct
|
|
//! (OUTERMOST(*this), p, std::forward<Args>(args)...)`.
|
|
//!
|
|
//! 2) Otherwise, if `uses_allocator<T, inner_allocator_type>::value` is true and
|
|
//! `is_constructible<T, allocator_arg_t, inner_allocator_type, Args...>::value` is true, calls
|
|
//! `OUTERMOST_ALLOC_TRAITS(*this)::construct(OUTERMOST(*this), p, allocator_arg,
|
|
//! inner_allocator(), std::forward<Args>(args)...)`.
|
|
//!
|
|
//! [<b>Note</b>: In compilers without advanced decltype SFINAE support, `is_constructible` can't
|
|
//! be implemented so that condition will be replaced by
|
|
//! constructible_with_allocator_prefix<T>::value. -end note]
|
|
//!
|
|
//! 3) Otherwise, if uses_allocator<T, inner_allocator_type>::value is true and
|
|
//! `is_constructible<T, Args..., inner_allocator_type>::value` is true, calls
|
|
//! `OUTERMOST_ALLOC_TRAITS(*this)::construct(OUTERMOST(*this), p,
|
|
//! std::forward<Args>(args)..., inner_allocator())`.
|
|
//!
|
|
//! [<b>Note</b>: In compilers without advanced decltype SFINAE support, `is_constructible` can't be
|
|
//! implemented so that condition will be replaced by
|
|
//! `constructible_with_allocator_suffix<T>::value`. -end note]
|
|
//!
|
|
//! 4) Otherwise, the program is ill-formed.
|
|
//!
|
|
//! [<b>Note</b>: An error will result if `uses_allocator` evaluates
|
|
//! to true but the specific constructor does not take an allocator. This definition prevents a silent
|
|
//! failure to pass an inner allocator to a contained element. -end note]
|
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template < typename T, class ...Args>
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#if defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
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void
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#else
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typename container_detail::enable_if_c<!container_detail::is_pair<T>::value, void>::type
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#endif
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construct(T* p, BOOST_FWD_REF(Args)...args)
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|
{
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container_detail::dispatch_uses_allocator
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( uses_allocator<T, inner_allocator_type>()
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, get_outermost_allocator(this->outer_allocator())
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, this->inner_allocator()
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, p, ::boost::forward<Args>(args)...);
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}
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|
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#else // #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
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|
|
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//Disable this overload if the first argument is pair as some compilers have
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|
//overload selection problems when the first parameter is a pair.
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|
#define BOOST_PP_LOCAL_MACRO(n) \
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template < typename T \
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BOOST_PP_ENUM_TRAILING_PARAMS(n, class P) \
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|
> \
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typename container_detail::enable_if_c<!container_detail::is_pair<T>::value, void>::type \
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construct(T* p BOOST_PP_ENUM_TRAILING(n, BOOST_CONTAINER_PP_PARAM_LIST, _)) \
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|
{ \
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container_detail::dispatch_uses_allocator \
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|
( uses_allocator<T, inner_allocator_type>() \
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, get_outermost_allocator(this->outer_allocator()) \
|
|
, this->inner_allocator() \
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, p BOOST_PP_ENUM_TRAILING(n, BOOST_CONTAINER_PP_PARAM_FORWARD, _)); \
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|
} \
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|
//!
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#define BOOST_PP_LOCAL_LIMITS (0, BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS)
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#include BOOST_PP_LOCAL_ITERATE()
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|
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#endif // #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
|
|
template <class T1, class T2>
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void construct(std::pair<T1,T2>* p)
|
|
{ this->construct_pair(p); }
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|
|
|
template <class T1, class T2>
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|
void construct(container_detail::pair<T1,T2>* p)
|
|
{ this->construct_pair(p); }
|
|
|
|
template <class T1, class T2, class U, class V>
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void construct(std::pair<T1, T2>* p, BOOST_FWD_REF(U) x, BOOST_FWD_REF(V) y)
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|
{ this->construct_pair(p, ::boost::forward<U>(x), ::boost::forward<V>(y)); }
|
|
|
|
template <class T1, class T2, class U, class V>
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|
void construct(container_detail::pair<T1, T2>* p, BOOST_FWD_REF(U) x, BOOST_FWD_REF(V) y)
|
|
{ this->construct_pair(p, ::boost::forward<U>(x), ::boost::forward<V>(y)); }
|
|
|
|
template <class T1, class T2, class U, class V>
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|
void construct(std::pair<T1, T2>* p, const std::pair<U, V>& x)
|
|
{ this->construct_pair(p, x); }
|
|
|
|
template <class T1, class T2, class U, class V>
|
|
void construct( container_detail::pair<T1, T2>* p
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|
, const container_detail::pair<U, V>& x)
|
|
{ this->construct_pair(p, x); }
|
|
|
|
template <class T1, class T2, class U, class V>
|
|
void construct( std::pair<T1, T2>* p
|
|
, BOOST_RV_REF_BEG std::pair<U, V> BOOST_RV_REF_END x)
|
|
{ this->construct_pair(p, x); }
|
|
|
|
template <class T1, class T2, class U, class V>
|
|
void construct( container_detail::pair<T1, T2>* p
|
|
, BOOST_RV_REF_BEG container_detail::pair<U, V> BOOST_RV_REF_END x)
|
|
{ this->construct_pair(p, x); }
|
|
|
|
/// @cond
|
|
private:
|
|
template <class Pair>
|
|
void construct_pair(Pair* p)
|
|
{
|
|
this->construct(container_detail::addressof(p->first));
|
|
BOOST_TRY{
|
|
this->construct(container_detail::addressof(p->second));
|
|
}
|
|
BOOST_CATCH(...){
|
|
this->destroy(container_detail::addressof(p->first));
|
|
BOOST_RETHROW
|
|
}
|
|
BOOST_CATCH_END
|
|
}
|
|
|
|
template <class Pair, class U, class V>
|
|
void construct_pair(Pair* p, BOOST_FWD_REF(U) x, BOOST_FWD_REF(V) y)
|
|
{
|
|
this->construct(container_detail::addressof(p->first), ::boost::forward<U>(x));
|
|
BOOST_TRY{
|
|
this->construct(container_detail::addressof(p->second), ::boost::forward<V>(y));
|
|
}
|
|
BOOST_CATCH(...){
|
|
this->destroy(container_detail::addressof(p->first));
|
|
BOOST_RETHROW
|
|
}
|
|
BOOST_CATCH_END
|
|
}
|
|
|
|
template <class Pair, class Pair2>
|
|
void construct_pair(Pair* p, const Pair2& pr)
|
|
{
|
|
this->construct(container_detail::addressof(p->first), pr.first);
|
|
BOOST_TRY{
|
|
this->construct(container_detail::addressof(p->second), pr.second);
|
|
}
|
|
BOOST_CATCH(...){
|
|
this->destroy(container_detail::addressof(p->first));
|
|
BOOST_RETHROW
|
|
}
|
|
BOOST_CATCH_END
|
|
}
|
|
|
|
template <class Pair, class Pair2>
|
|
void construct_pair(Pair* p, BOOST_RV_REF(Pair2) pr)
|
|
{
|
|
this->construct(container_detail::addressof(p->first), ::boost::move(pr.first));
|
|
BOOST_TRY{
|
|
this->construct(container_detail::addressof(p->second), ::boost::move(pr.second));
|
|
}
|
|
BOOST_CATCH(...){
|
|
this->destroy(container_detail::addressof(p->first));
|
|
BOOST_RETHROW
|
|
}
|
|
BOOST_CATCH_END
|
|
}
|
|
|
|
//template <class T1, class T2, class... Args1, class... Args2>
|
|
//void construct(pair<T1, T2>* p, piecewise_construct_t, tuple<Args1...> x, tuple<Args2...> y);
|
|
|
|
public:
|
|
//Internal function
|
|
template <class OuterA2>
|
|
scoped_allocator_adaptor(internal_type_t, BOOST_FWD_REF(OuterA2) outer, const inner_allocator_type& inner)
|
|
: base_type(internal_type_t(), ::boost::forward<OuterA2>(outer), inner)
|
|
{}
|
|
|
|
/// @endcond
|
|
};
|
|
|
|
template <typename OuterA1, typename OuterA2
|
|
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
, typename... InnerAllocs
|
|
#else
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, class Q)
|
|
#endif
|
|
>
|
|
inline bool operator==(
|
|
const scoped_allocator_adaptor<OuterA1
|
|
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
,InnerAllocs...
|
|
#else
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, Q)
|
|
#endif
|
|
>& a,
|
|
const scoped_allocator_adaptor<OuterA2
|
|
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
,InnerAllocs...
|
|
#else
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, Q)
|
|
#endif
|
|
>& b)
|
|
{
|
|
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
const bool has_zero_inner = sizeof...(InnerAllocs) == 0u;
|
|
#else
|
|
const bool has_zero_inner =
|
|
boost::container::container_detail::is_same
|
|
<Q0, container_detail::nat>::value;
|
|
#endif
|
|
|
|
return a.outer_allocator() == b.outer_allocator()
|
|
&& (has_zero_inner || a.inner_allocator() == b.inner_allocator());
|
|
}
|
|
|
|
template <typename OuterA1, typename OuterA2
|
|
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
, typename... InnerAllocs
|
|
#else
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, class Q)
|
|
#endif
|
|
>
|
|
inline bool operator!=(
|
|
const scoped_allocator_adaptor<OuterA1
|
|
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
,InnerAllocs...
|
|
#else
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, Q)
|
|
#endif
|
|
>& a,
|
|
const scoped_allocator_adaptor<OuterA2
|
|
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
|
|
,InnerAllocs...
|
|
#else
|
|
BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS, Q)
|
|
#endif
|
|
>& b)
|
|
{
|
|
return ! (a == b);
|
|
}
|
|
|
|
}} // namespace boost { namespace container {
|
|
|
|
#include <boost/container/detail/config_end.hpp>
|
|
|
|
#endif // BOOST_CONTAINER_ALLOCATOR_SCOPED_ALLOCATOR_HPP
|