boost/container/slist.hpp
//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2004-2015. 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/container for documentation.
//
//////////////////////////////////////////////////////////////////////////////
#ifndef BOOST_CONTAINER_SLIST_HPP
#define BOOST_CONTAINER_SLIST_HPP
#ifndef BOOST_CONFIG_HPP
# include <boost/config.hpp>
#endif
#if defined(BOOST_HAS_PRAGMA_ONCE)
# pragma once
#endif
#include <boost/container/detail/config_begin.hpp>
#include <boost/container/detail/workaround.hpp>
// container
#include <boost/container/container_fwd.hpp>
#include <boost/container/new_allocator.hpp> //new_allocator
#include <boost/container/throw_exception.hpp>
// container/detail
#include <boost/container/detail/algorithm.hpp> //algo_equal(), algo_lexicographical_compare
#include <boost/container/detail/compare_functors.hpp>
#include <boost/container/detail/iterator.hpp>
#include <boost/container/detail/iterators.hpp>
#include <boost/container/detail/mpl.hpp>
#include <boost/container/detail/node_alloc_holder.hpp>
#include <boost/container/detail/type_traits.hpp>
#include <boost/container/detail/value_functors.hpp>
// intrusive
#include <boost/intrusive/pointer_traits.hpp>
#include <boost/intrusive/slist.hpp>
// move
#include <boost/move/iterator.hpp>
#include <boost/move/traits.hpp>
#include <boost/move/utility_core.hpp>
// move/detail
#if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
#include <boost/move/detail/fwd_macros.hpp>
#endif
#include <boost/move/detail/move_helpers.hpp>
// other
#include <boost/core/no_exceptions_support.hpp>
// std
#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
#include <initializer_list>
#endif
namespace boost {
namespace container {
#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
template <class T, class Allocator>
class slist;
namespace dtl {
template<class VoidPointer>
struct slist_hook
{
typedef typename dtl::bi::make_slist_base_hook
<dtl::bi::void_pointer<VoidPointer>, dtl::bi::link_mode<dtl::bi::normal_link> >::type type;
};
template <class T, class VoidPointer>
struct slist_node
: public slist_hook<VoidPointer>::type
{
public:
typedef T value_type;
typedef T internal_type;
typedef typename slist_hook<VoidPointer>::type hook_type;
typedef typename dtl::aligned_storage<sizeof(T), dtl::alignment_of<T>::value>::type storage_t;
storage_t m_storage;
#if defined(BOOST_GCC) && (BOOST_GCC >= 40600) && (BOOST_GCC < 80000)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wstrict-aliasing"
#define BOOST_CONTAINER_DISABLE_ALIASING_WARNING
# endif
BOOST_CONTAINER_FORCEINLINE T &get_data()
{ return *reinterpret_cast<T*>(this->m_storage.data); }
BOOST_CONTAINER_FORCEINLINE const T &get_data() const
{ return *reinterpret_cast<const T*>(this->m_storage.data); }
BOOST_CONTAINER_FORCEINLINE T *get_data_ptr()
{ return reinterpret_cast<T*>(this->m_storage.data); }
BOOST_CONTAINER_FORCEINLINE const T *get_data_ptr() const
{ return reinterpret_cast<T*>(this->m_storage.data); }
BOOST_CONTAINER_FORCEINLINE internal_type &get_real_data()
{ return *reinterpret_cast<internal_type*>(this->m_storage.data); }
BOOST_CONTAINER_FORCEINLINE const internal_type &get_real_data() const
{ return *reinterpret_cast<const internal_type*>(this->m_storage.data); }
BOOST_CONTAINER_FORCEINLINE internal_type *get_real_data_ptr()
{ return reinterpret_cast<internal_type*>(this->m_storage.data); }
BOOST_CONTAINER_FORCEINLINE const internal_type *get_real_data_ptr() const
{ return reinterpret_cast<internal_type*>(this->m_storage.data); }
BOOST_CONTAINER_FORCEINLINE ~slist_node()
{ reinterpret_cast<T*>(this->m_storage.data)->~T(); }
#if defined(BOOST_CONTAINER_DISABLE_ALIASING_WARNING)
#pragma GCC diagnostic pop
#undef BOOST_CONTAINER_DISABLE_ALIASING_WARNING
# endif
BOOST_CONTAINER_FORCEINLINE void destroy_header()
{ static_cast<hook_type*>(this)->~hook_type(); }
};
template <class T, class VoidPointer>
struct iiterator_node_value_type< slist_node<T,VoidPointer> > {
typedef T type;
};
template<class Allocator>
struct intrusive_slist_type
{
typedef boost::container::allocator_traits<Allocator> allocator_traits_type;
typedef typename allocator_traits_type::value_type value_type;
typedef typename boost::intrusive::pointer_traits
<typename allocator_traits_type::pointer>::template
rebind_pointer<void>::type
void_pointer;
typedef typename dtl::slist_node
<value_type, void_pointer> node_type;
typedef typename dtl::bi::make_slist
<node_type
,dtl::bi::base_hook<typename slist_hook<void_pointer>::type>
,dtl::bi::constant_time_size<true>
, dtl::bi::size_type
<typename allocator_traits_type::size_type>
>::type container_type;
typedef container_type type ;
};
} //namespace dtl {
#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
//! An slist is a singly linked list: a list where each element is linked to the next
//! element, but not to the previous element. That is, it is a Sequence that
//! supports forward but not backward traversal, and (amortized) constant time
//! insertion and removal of elements. Slists, like lists, have the important
//! property that insertion and splicing do not invalidate iterators to list elements,
//! and that even removal invalidates only the iterators that point to the elements
//! that are removed. The ordering of iterators may be changed (that is,
//! slist<T>::iterator might have a different predecessor or successor after a list
//! operation than it did before), but the iterators themselves will not be invalidated
//! or made to point to different elements unless that invalidation or mutation is explicit.
//!
//! The main difference between slist and list is that list's iterators are bidirectional
//! iterators, while slist's iterators are forward iterators. This means that slist is
//! less versatile than list; frequently, however, bidirectional iterators are
//! unnecessary. You should usually use slist unless you actually need the extra
//! functionality of list, because singly linked lists are smaller and faster than double
//! linked lists.
//!
//! Important performance note: like every other Sequence, slist defines the member
//! functions insert and erase. Using these member functions carelessly, however, can
//! result in disastrously slow programs. The problem is that insert's first argument is
//! an iterator p, and that it inserts the new element(s) before p. This means that
//! insert must find the iterator just before p; this is a constant-time operation
//! for list, since list has bidirectional iterators, but for slist it must find that
//! iterator by traversing the list from the beginning up to p. In other words:
//! insert and erase are slow operations anywhere but near the beginning of the slist.
//!
//! Slist provides the member functions insert_after and erase_after, which are constant
//! time operations: you should always use insert_after and erase_after whenever
//! possible. If you find that insert_after and erase_after aren't adequate for your
//! needs, and that you often need to use insert and erase in the middle of the list,
//! then you should probably use list instead of slist.
//!
//! \tparam T The type of object that is stored in the list
//! \tparam Allocator The allocator used for all internal memory management, use void
//! for the default allocator
#ifdef BOOST_CONTAINER_DOXYGEN_INVOKED
template <class T, class Allocator = void >
#else
template <class T, class Allocator>
#endif
class slist
: protected dtl::node_alloc_holder
< typename real_allocator<T, Allocator>::type
, typename dtl::intrusive_slist_type<typename real_allocator<T, Allocator>::type>::type>
{
#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
typedef typename real_allocator<T, Allocator>::type ValueAllocator;
typedef typename
dtl::intrusive_slist_type<ValueAllocator>::type Icont;
typedef dtl::node_alloc_holder<ValueAllocator, Icont> AllocHolder;
typedef typename AllocHolder::NodePtr NodePtr;
typedef typename AllocHolder::NodeAlloc NodeAlloc;
typedef typename AllocHolder::ValAlloc ValAlloc;
typedef typename AllocHolder::Node Node;
typedef dtl::allocator_destroyer<NodeAlloc> Destroyer;
typedef typename AllocHolder::alloc_version alloc_version;
typedef boost::container::
allocator_traits<ValueAllocator> allocator_traits_type;
typedef boost::container::equal_to_value
<typename allocator_traits_type::value_type> equal_to_value_type;
BOOST_COPYABLE_AND_MOVABLE(slist)
typedef dtl::iterator_from_iiterator<typename Icont::iterator, false> iterator_impl;
typedef dtl::iterator_from_iiterator<typename Icont::iterator, true > const_iterator_impl;
#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
public:
//////////////////////////////////////////////
//
// types
//
//////////////////////////////////////////////
typedef T value_type;
typedef typename ::boost::container::allocator_traits<ValueAllocator>::pointer pointer;
typedef typename ::boost::container::allocator_traits<ValueAllocator>::const_pointer const_pointer;
typedef typename ::boost::container::allocator_traits<ValueAllocator>::reference reference;
typedef typename ::boost::container::allocator_traits<ValueAllocator>::const_reference const_reference;
typedef typename ::boost::container::allocator_traits<ValueAllocator>::size_type size_type;
typedef typename ::boost::container::allocator_traits<ValueAllocator>::difference_type difference_type;
typedef ValueAllocator allocator_type;
typedef BOOST_CONTAINER_IMPDEF(NodeAlloc) stored_allocator_type;
typedef BOOST_CONTAINER_IMPDEF(iterator_impl) iterator;
typedef BOOST_CONTAINER_IMPDEF(const_iterator_impl) const_iterator;
public:
//////////////////////////////////////////////
//
// construct/copy/destroy
//
//////////////////////////////////////////////
//! <b>Effects</b>: Constructs a list taking the allocator as parameter.
//!
//! <b>Throws</b>: If allocator_type's copy constructor throws.
//!
//! <b>Complexity</b>: Constant.
slist() BOOST_NOEXCEPT_IF(dtl::is_nothrow_default_constructible<ValueAllocator>::value)
: AllocHolder()
{}
//! <b>Effects</b>: Constructs a list taking the allocator as parameter.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Constant.
explicit slist(const allocator_type& a) BOOST_NOEXCEPT_OR_NOTHROW
: AllocHolder(a)
{}
//! <b>Effects</b>: Constructs a list
//! and inserts n value-initialized value_types.
//!
//! <b>Throws</b>: If allocator_type's default constructor
//! throws or T's default or copy constructor throws.
//!
//! <b>Complexity</b>: Linear to n.
explicit slist(size_type n)
: AllocHolder(allocator_type())
{ this->resize(n); }
//! <b>Effects</b>: Constructs a list that will use a copy of allocator a
//! and inserts n copies of value.
//!
//! <b>Throws</b>: If allocator_type's default constructor
//! throws or T's default or copy constructor throws.
//!
//! <b>Complexity</b>: Linear to n.
slist(size_type n, const allocator_type &a)
: AllocHolder(a)
{ this->resize(n); }
//! <b>Effects</b>: Constructs a list that will use a copy of allocator a
//! and inserts n copies of value.
//!
//! <b>Throws</b>: If allocator_type's default constructor
//! throws or T's default or copy constructor throws.
//!
//! <b>Complexity</b>: Linear to n.
explicit slist(size_type n, const value_type& x, const allocator_type& a = allocator_type())
: AllocHolder(a)
{ this->insert_after(this->cbefore_begin(), n, x); }
//! <b>Effects</b>: Constructs a list that will use a copy of allocator a
//! and inserts a copy of the range [first, last) in the list.
//!
//! <b>Throws</b>: If allocator_type's default constructor
//! throws or T's constructor taking a dereferenced InIt throws.
//!
//! <b>Complexity</b>: Linear to the range [first, last).
template <class InpIt>
slist(InpIt first, InpIt last, const allocator_type& a = allocator_type())
: AllocHolder(a)
{ this->insert_after(this->cbefore_begin(), first, last); }
#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
//! <b>Effects</b>: Constructs a list that will use a copy of allocator a
//! and inserts a copy of the range [il.begin(), il.end()) in the list.
//!
//! <b>Throws</b>: If allocator_type's default constructor
//! throws or T's constructor taking a dereferenced std::initializer_list iterator throws.
//!
//! <b>Complexity</b>: Linear to the range [il.begin(), il.end()).
slist(std::initializer_list<value_type> il, const allocator_type& a = allocator_type())
: AllocHolder(a)
{ this->insert_after(this->cbefore_begin(), il.begin(), il.end()); }
#endif
//! <b>Effects</b>: Copy constructs a list.
//!
//! <b>Postcondition</b>: x == *this.
//!
//! <b>Throws</b>: If allocator_type's default constructor
//!
//! <b>Complexity</b>: Linear to the elements x contains.
slist(const slist& x)
: AllocHolder(x)
{ this->insert_after(this->cbefore_begin(), x.begin(), x.end()); }
//! <b>Effects</b>: Move constructor. Moves x's resources to *this.
//!
//! <b>Throws</b>: If allocator_type's copy constructor throws.
//!
//! <b>Complexity</b>: Constant.
slist(BOOST_RV_REF(slist) x) BOOST_NOEXCEPT_OR_NOTHROW
: AllocHolder(BOOST_MOVE_BASE(AllocHolder, x))
{}
//! <b>Effects</b>: Copy constructs a list using the specified allocator.
//!
//! <b>Postcondition</b>: x == *this.
//!
//! <b>Throws</b>: If allocator_type's default constructor
//!
//! <b>Complexity</b>: Linear to the elements x contains.
slist(const slist& x, const allocator_type &a)
: AllocHolder(a)
{ this->insert_after(this->cbefore_begin(), x.begin(), x.end()); }
//! <b>Effects</b>: Move constructor using the specified allocator.
//! Moves x's resources to *this.
//!
//! <b>Throws</b>: If allocation or value_type's copy constructor throws.
//!
//! <b>Complexity</b>: Constant if a == x.get_allocator(), linear otherwise.
slist(BOOST_RV_REF(slist) x, const allocator_type &a)
: AllocHolder(a)
{
if(this->node_alloc() == x.node_alloc()){
this->icont().swap(x.icont());
}
else{
this->insert_after(this->cbefore_begin(), boost::make_move_iterator(x.begin()), boost::make_move_iterator(x.end()));
}
}
//! <b>Effects</b>: Destroys the list. All stored values are destroyed
//! and used memory is deallocated.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Linear to the number of elements.
~slist() BOOST_NOEXCEPT_OR_NOTHROW
{} //AllocHolder clears the slist
//! <b>Effects</b>: Makes *this contain the same elements as x.
//!
//! <b>Postcondition</b>: this->size() == x.size(). *this contains a copy
//! of each of x's elements.
//!
//! <b>Throws</b>: If memory allocation throws or T's copy constructor throws.
//!
//! <b>Complexity</b>: Linear to the number of elements in x.
slist& operator= (BOOST_COPY_ASSIGN_REF(slist) x)
{
if (BOOST_LIKELY(this != &x)) {
NodeAlloc &this_alloc = this->node_alloc();
const NodeAlloc &x_alloc = x.node_alloc();
dtl::bool_<allocator_traits_type::
propagate_on_container_copy_assignment::value> flag;
if(flag && this_alloc != x_alloc){
this->clear();
}
this->AllocHolder::copy_assign_alloc(x);
this->assign(x.begin(), x.end());
}
return *this;
}
//! <b>Effects</b>: Makes *this contain the same elements as x.
//!
//! <b>Postcondition</b>: this->size() == x.size(). *this contains a copy
//! of each of x's elements.
//!
//! <b>Throws</b>: If allocator_traits_type::propagate_on_container_move_assignment
//! is false and (allocation throws or value_type's move constructor throws)
//!
//! <b>Complexity</b>: Constant if allocator_traits_type::
//! propagate_on_container_move_assignment is true or
//! this->get>allocator() == x.get_allocator(). Linear otherwise.
slist& operator=(BOOST_RV_REF(slist) x)
BOOST_NOEXCEPT_IF(allocator_traits_type::propagate_on_container_move_assignment::value
|| allocator_traits_type::is_always_equal::value)
{
if (BOOST_LIKELY(this != &x)) {
NodeAlloc &this_alloc = this->node_alloc();
NodeAlloc &x_alloc = x.node_alloc();
const bool propagate_alloc = allocator_traits_type::
propagate_on_container_move_assignment::value;
const bool allocators_equal = this_alloc == x_alloc; (void)allocators_equal;
//Resources can be transferred if both allocators are
//going to be equal after this function (either propagated or already equal)
if(propagate_alloc || allocators_equal){
//Destroy
this->clear();
//Move allocator if needed
this->AllocHolder::move_assign_alloc(x);
//Obtain resources
this->icont() = boost::move(x.icont());
}
//Else do a one by one move
else{
this->assign( boost::make_move_iterator(x.begin())
, boost::make_move_iterator(x.end()));
}
}
return *this;
}
#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
//! <b>Effects</b>: Makes *this contain the same elements as in il.
//!
//! <b>Postcondition</b>: this->size() == il.size(). *this contains a copy
//! of each of il's elements.
//!
//! <b>Throws</b>: If allocator_traits_type::propagate_on_container_move_assignment
//! is false and (allocation throws or value_type's move constructor throws)
slist& operator=(std::initializer_list<value_type> il)
{
assign(il.begin(), il.end());
return *this;
}
#endif
//! <b>Effects</b>: Assigns the n copies of val to *this.
//!
//! <b>Throws</b>: If memory allocation throws or T's copy constructor throws.
//!
//! <b>Complexity</b>: Linear to n.
void assign(size_type n, const T& val)
{
typedef constant_iterator<value_type, difference_type> cvalue_iterator;
return this->assign(cvalue_iterator(val, n), cvalue_iterator());
}
//! <b>Effects</b>: Assigns the range [first, last) to *this.
//!
//! <b>Throws</b>: If memory allocation throws or
//! T's constructor from dereferencing InpIt throws.
//!
//! <b>Complexity</b>: Linear to n.
template <class InpIt>
void assign(InpIt first, InpIt last
#if !defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
, typename dtl::disable_if_convertible<InpIt, size_type>::type * = 0
#endif
)
{
iterator end_n(this->end());
iterator prev(this->before_begin());
iterator node(this->begin());
while (node != end_n && first != last){
*node = *first;
prev = node;
++node;
++first;
}
if (first != last)
this->insert_after(prev, first, last);
else
this->erase_after(prev, end_n);
}
#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
//! <b>Effects</b>: Assigns the range [il.begin(), il.end()) to *this.
//!
//! <b>Throws</b>: If memory allocation throws or
//! T's constructor from dereferencing std::initializer_list iterator throws.
//!
//! <b>Complexity</b>: Linear to range [il.begin(), il.end()).
void assign(std::initializer_list<value_type> il)
{
assign(il.begin(), il.end());
}
#endif
//! <b>Effects</b>: Returns a copy of the internal allocator.
//!
//! <b>Throws</b>: If allocator's copy constructor throws.
//!
//! <b>Complexity</b>: Constant.
allocator_type get_allocator() const BOOST_NOEXCEPT_OR_NOTHROW
{ return allocator_type(this->node_alloc()); }
//! <b>Effects</b>: Returns a reference to the internal allocator.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Constant.
//!
//! <b>Note</b>: Non-standard extension.
stored_allocator_type &get_stored_allocator() BOOST_NOEXCEPT_OR_NOTHROW
{ return this->node_alloc(); }
//! <b>Effects</b>: Returns a reference to the internal allocator.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Constant.
//!
//! <b>Note</b>: Non-standard extension.
const stored_allocator_type &get_stored_allocator() const BOOST_NOEXCEPT_OR_NOTHROW
{ return this->node_alloc(); }
//////////////////////////////////////////////
//
// iterators
//
//////////////////////////////////////////////
//! <b>Effects</b>: Returns a non-dereferenceable iterator that,
//! when incremented, yields begin(). This iterator may be used
//! as the argument to insert_after, erase_after, etc.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
iterator before_begin() BOOST_NOEXCEPT_OR_NOTHROW
{ return iterator(end()); }
//! <b>Effects</b>: Returns a non-dereferenceable const_iterator
//! that, when incremented, yields begin(). This iterator may be used
//! as the argument to insert_after, erase_after, etc.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator before_begin() const BOOST_NOEXCEPT_OR_NOTHROW
{ return this->cbefore_begin(); }
//! <b>Effects</b>: Returns an iterator to the first element contained in the list.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
iterator begin() BOOST_NOEXCEPT_OR_NOTHROW
{ return iterator(this->icont().begin()); }
//! <b>Effects</b>: Returns a const_iterator to the first element contained in the list.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator begin() const BOOST_NOEXCEPT_OR_NOTHROW
{ return this->cbegin(); }
//! <b>Effects</b>: Returns an iterator to the end of the list.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
iterator end() BOOST_NOEXCEPT_OR_NOTHROW
{ return iterator(this->icont().end()); }
//! <b>Effects</b>: Returns a const_iterator to the end of the list.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator end() const BOOST_NOEXCEPT_OR_NOTHROW
{ return this->cend(); }
//! <b>Effects</b>: Returns a non-dereferenceable const_iterator
//! that, when incremented, yields begin(). This iterator may be used
//! as the argument to insert_after, erase_after, etc.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator cbefore_begin() const BOOST_NOEXCEPT_OR_NOTHROW
{ return const_iterator(end()); }
//! <b>Effects</b>: Returns a const_iterator to the first element contained in the list.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator cbegin() const BOOST_NOEXCEPT_OR_NOTHROW
{ return const_iterator(this->non_const_icont().begin()); }
//! <b>Effects</b>: Returns a const_iterator to the end of the list.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator cend() const BOOST_NOEXCEPT_OR_NOTHROW
{ return const_iterator(this->non_const_icont().end()); }
//! <b>Returns</b>: The iterator to the element before i in the sequence.
//! Returns the end-iterator, if either i is the begin-iterator or the
//! sequence is empty.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Linear to the number of elements before i.
//!
//! <b>Note</b>: Non-standard extension.
iterator previous(iterator p) BOOST_NOEXCEPT_OR_NOTHROW
{ return iterator(this->icont().previous(p.get())); }
//! <b>Returns</b>: The const_iterator to the element before i in the sequence.
//! Returns the end-const_iterator, if either i is the begin-const_iterator or
//! the sequence is empty.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Linear to the number of elements before i.
//!
//! <b>Note</b>: Non-standard extension.
const_iterator previous(const_iterator p)
{ return const_iterator(this->icont().previous(p.get())); }
//////////////////////////////////////////////
//
// capacity
//
//////////////////////////////////////////////
//! <b>Effects</b>: Returns true if the list contains no elements.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
bool empty() const
{ return !this->size(); }
//! <b>Effects</b>: Returns the number of the elements contained in the list.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
size_type size() const
{ return this->icont().size(); }
//! <b>Effects</b>: Returns the largest possible size of the list.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
size_type max_size() const
{ return AllocHolder::max_size(); }
//! <b>Effects</b>: Inserts or erases elements at the end such that
//! the size becomes n. New elements are value initialized.
//!
//! <b>Throws</b>: If memory allocation throws, or T's copy constructor throws.
//!
//! <b>Complexity</b>: Linear to the difference between size() and new_size.
void resize(size_type new_size)
{
const_iterator last_pos;
if(!priv_try_shrink(new_size, last_pos)){
typedef value_init_construct_iterator<value_type, difference_type> value_init_iterator;
this->insert_after(last_pos, value_init_iterator(new_size - this->size()), value_init_iterator());
}
}
//! <b>Effects</b>: Inserts or erases elements at the end such that
//! the size becomes n. New elements are copy constructed from x.
//!
//! <b>Throws</b>: If memory allocation throws, or T's copy constructor throws.
//!
//! <b>Complexity</b>: Linear to the difference between size() and new_size.
void resize(size_type new_size, const T& x)
{
const_iterator last_pos;
if(!priv_try_shrink(new_size, last_pos)){
this->insert_after(last_pos, new_size, x);
}
}
//////////////////////////////////////////////
//
// element access
//
//////////////////////////////////////////////
//! <b>Requires</b>: !empty()
//!
//! <b>Effects</b>: Returns a reference to the first element
//! from the beginning of the container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
reference front()
{
BOOST_ASSERT(!this->empty());
return *this->begin();
}
//! <b>Requires</b>: !empty()
//!
//! <b>Effects</b>: Returns a const reference to the first element
//! from the beginning of the container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_reference front() const
{
BOOST_ASSERT(!this->empty());
return *this->begin();
}
//////////////////////////////////////////////
//
// modifiers
//
//////////////////////////////////////////////
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
//! <b>Effects</b>: Inserts an object of type T constructed with
//! std::forward<Args>(args)... in the front of the list
//!
//! <b>Returns</b>: A reference to the created object.
//!
//! <b>Throws</b>: If memory allocation throws or
//! T's copy constructor throws.
//!
//! <b>Complexity</b>: Amortized constant time.
template <class... Args>
reference emplace_front(BOOST_FWD_REF(Args)... args)
{ return *this->emplace_after(this->cbefore_begin(), boost::forward<Args>(args)...); }
//! <b>Effects</b>: Inserts an object of type T constructed with
//! std::forward<Args>(args)... after prev
//!
//! <b>Throws</b>: If memory allocation throws or
//! T's in-place constructor throws.
//!
//! <b>Complexity</b>: Constant
template <class... Args>
iterator emplace_after(const_iterator prev, BOOST_FWD_REF(Args)... args)
{
NodePtr pnode(AllocHolder::create_node(boost::forward<Args>(args)...));
return iterator(this->icont().insert_after(prev.get(), *pnode));
}
#else // !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
#define BOOST_CONTAINER_SLIST_EMPLACE_CODE(N) \
BOOST_MOVE_TMPL_LT##N BOOST_MOVE_CLASS##N BOOST_MOVE_GT##N \
reference emplace_front(BOOST_MOVE_UREF##N)\
{ return *this->emplace_after(this->cbefore_begin() BOOST_MOVE_I##N BOOST_MOVE_FWD##N);}\
\
BOOST_MOVE_TMPL_LT##N BOOST_MOVE_CLASS##N BOOST_MOVE_GT##N \
iterator emplace_after(const_iterator p BOOST_MOVE_I##N BOOST_MOVE_UREF##N)\
{\
NodePtr pnode (AllocHolder::create_node(BOOST_MOVE_FWD##N));\
return iterator(this->icont().insert_after(p.get(), *pnode));\
}\
//
BOOST_MOVE_ITERATE_0TO9(BOOST_CONTAINER_SLIST_EMPLACE_CODE)
#undef BOOST_CONTAINER_SLIST_EMPLACE_CODE
#endif // !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
#if defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
//! <b>Effects</b>: Inserts a copy of x at the beginning of the list.
//!
//! <b>Throws</b>: If memory allocation throws or
//! T's copy constructor throws.
//!
//! <b>Complexity</b>: Amortized constant time.
void push_front(const T &x);
//! <b>Effects</b>: Constructs a new element in the beginning of the list
//! and moves the resources of x to this new element.
//!
//! <b>Throws</b>: If memory allocation throws.
//!
//! <b>Complexity</b>: Amortized constant time.
void push_front(T &&x);
#else
BOOST_MOVE_CONVERSION_AWARE_CATCH(push_front, T, void, priv_push_front)
#endif
#if defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
//! <b>Requires</b>: p must be a valid iterator of *this.
//!
//! <b>Effects</b>: Inserts a copy of the value after prev_p.
//!
//! <b>Returns</b>: An iterator to the inserted element.
//!
//! <b>Throws</b>: If memory allocation throws or T's copy constructor throws.
//!
//! <b>Complexity</b>: Amortized constant time.
//!
//! <b>Note</b>: Does not affect the validity of iterators and references of
//! previous values.
iterator insert_after(const_iterator prev_p, const T &x);
//! <b>Requires</b>: prev_p must be a valid iterator of *this.
//!
//! <b>Effects</b>: Inserts a move constructed copy object from the value after the
//! element pointed by prev_p.
//!
//! <b>Returns</b>: An iterator to the inserted element.
//!
//! <b>Throws</b>: If memory allocation throws.
//!
//! <b>Complexity</b>: Amortized constant time.
//!
//! <b>Note</b>: Does not affect the validity of iterators and references of
//! previous values.
iterator insert_after(const_iterator prev_p, T &&x);
#else
BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG(insert_after, T, iterator, priv_insert_after, const_iterator, const_iterator)
#endif
//! <b>Requires</b>: prev_p must be a valid iterator of *this.
//!
//! <b>Effects</b>: Inserts n copies of x after prev_p.
//!
//! <b>Returns</b>: an iterator to the last inserted element or prev_p if n is 0.
//!
//! <b>Throws</b>: If memory allocation throws or T's copy constructor throws.
//!
//!
//! <b>Complexity</b>: Linear to n.
//!
//! <b>Note</b>: Does not affect the validity of iterators and references of
//! previous values.
iterator insert_after(const_iterator prev_p, size_type n, const value_type& x)
{
typedef constant_iterator<value_type, difference_type> cvalue_iterator;
return this->insert_after(prev_p, cvalue_iterator(x, n), cvalue_iterator());
}
//! <b>Requires</b>: prev_p must be a valid iterator of *this.
//!
//! <b>Effects</b>: Inserts the range pointed by [first, last) after prev_p.
//!
//! <b>Returns</b>: an iterator to the last inserted element or prev_p if first == last.
//!
//! <b>Throws</b>: If memory allocation throws, T's constructor from a
//! dereferenced InpIt throws.
//!
//! <b>Complexity</b>: Linear to the number of elements inserted.
//!
//! <b>Note</b>: Does not affect the validity of iterators and references of
//! previous values.
template <class InpIt>
iterator insert_after(const_iterator prev_p, InpIt first, InpIt last
#if !defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
, typename dtl::enable_if_c
< !dtl::is_convertible<InpIt, size_type>::value
&& (dtl::is_input_iterator<InpIt>::value
|| dtl::is_same<alloc_version, version_1>::value
)
>::type * = 0
#endif
)
{
iterator ret_it(prev_p.get());
for (; first != last; ++first){
ret_it = iterator(this->icont().insert_after(ret_it.get(), *this->create_node_from_it(first)));
}
return ret_it;
}
#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
//! <b>Requires</b>: prev_p must be a valid iterator of *this.
//!
//! <b>Effects</b>: Inserts the range pointed by [il.begin(), il.end()) after prev_p.
//!
//! <b>Returns</b>: an iterator to the last inserted element or prev_p if il.begin() == il.end().
//!
//! <b>Throws</b>: If memory allocation throws, T's constructor from a
//! dereferenced std::initializer_list iterator throws.
//!
//! <b>Complexity</b>: Linear to the number of elements inserted.
//!
//! <b>Note</b>: Does not affect the validity of iterators and references of
//! previous values.
iterator insert_after(const_iterator prev_p, std::initializer_list<value_type> il)
{
return insert_after(prev_p, il.begin(), il.end());
}
#endif
#if !defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
template <class FwdIt>
iterator insert_after(const_iterator prev, FwdIt first, FwdIt last
, typename dtl::enable_if_c
< !dtl::is_convertible<FwdIt, size_type>::value
&& !(dtl::is_input_iterator<FwdIt>::value
|| dtl::is_same<alloc_version, version_1>::value
)
>::type * = 0
)
{
//Optimized allocation and construction
insertion_functor func(this->icont(), prev.get());
this->allocate_many_and_construct(first, boost::container::iterator_distance(first, last), func);
return iterator(func.inserted_first());
}
#endif
//! <b>Effects</b>: Removes the first element from the list.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Amortized constant time.
void pop_front()
{
BOOST_ASSERT(!this->empty());
this->icont().pop_front_and_dispose(Destroyer(this->node_alloc()));
}
//! <b>Effects</b>: Erases the element after the element pointed by prev_p
//! of the list.
//!
//! <b>Returns</b>: the first element remaining beyond the removed elements,
//! or end() if no such element exists.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
//!
//! <b>Note</b>: Does not invalidate iterators or references to non erased elements.
iterator erase_after(const_iterator prev_p)
{
return iterator(this->icont().erase_after_and_dispose(prev_p.get(), Destroyer(this->node_alloc())));
}
//! <b>Effects</b>: Erases the range (before_first, last) from
//! the list.
//!
//! <b>Returns</b>: the first element remaining beyond the removed elements,
//! or end() if no such element exists.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Linear to the number of erased elements.
//!
//! <b>Note</b>: Does not invalidate iterators or references to non erased elements.
iterator erase_after(const_iterator before_first, const_iterator last)
{
return iterator(this->icont().erase_after_and_dispose(before_first.get(), last.get(), Destroyer(this->node_alloc())));
}
//! <b>Effects</b>: Swaps the contents of *this and x.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Linear to the number of elements on *this and x.
void swap(slist& x)
BOOST_NOEXCEPT_IF( allocator_traits_type::propagate_on_container_swap::value
|| allocator_traits_type::is_always_equal::value)
{
BOOST_ASSERT(allocator_traits_type::propagate_on_container_swap::value ||
allocator_traits_type::is_always_equal::value ||
this->get_stored_allocator() == x.get_stored_allocator());
AllocHolder::swap(x);
}
//! <b>Effects</b>: Erases all the elements of the list.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Linear to the number of elements in the list.
void clear()
{ this->icont().clear_and_dispose(Destroyer(this->node_alloc())); }
//////////////////////////////////////////////
//
// slist operations
//
//////////////////////////////////////////////
//! <b>Requires</b>: p must point to an element contained
//! by the list. x != *this
//!
//! <b>Effects</b>: Transfers all the elements of list x to this list, after the
//! the element pointed by p. No destructors or copy constructors are called.
//!
//! <b>Throws</b>: std::runtime_error if this' allocator and x's allocator
//! are not equal.
//!
//! <b>Complexity</b>: Linear to the elements in x.
//!
//! <b>Note</b>: Iterators of values obtained from list x now point to elements of
//! this list. Iterators of this list and all the references are not invalidated.
void splice_after(const_iterator prev_p, slist& x) BOOST_NOEXCEPT_OR_NOTHROW
{
BOOST_ASSERT(this != &x);
BOOST_ASSERT(this->node_alloc() == x.node_alloc());
this->icont().splice_after(prev_p.get(), x.icont());
}
//! <b>Requires</b>: p must point to an element contained
//! by the list. x != *this
//!
//! <b>Effects</b>: Transfers all the elements of list x to this list, after the
//! the element pointed by p. No destructors or copy constructors are called.
//!
//! <b>Throws</b>: std::runtime_error if this' allocator and x's allocator
//! are not equal.
//!
//! <b>Complexity</b>: Linear to the elements in x.
//!
//! <b>Note</b>: Iterators of values obtained from list x now point to elements of
//! this list. Iterators of this list and all the references are not invalidated.
void splice_after(const_iterator prev_p, BOOST_RV_REF(slist) x) BOOST_NOEXCEPT_OR_NOTHROW
{ this->splice_after(prev_p, static_cast<slist&>(x)); }
//! <b>Requires</b>: prev_p must be a valid iterator of this.
//! i must point to an element contained in list x.
//! this' allocator and x's allocator shall compare equal.
//!
//! <b>Effects</b>: Transfers the value pointed by i, from list x to this list,
//! after the element pointed by prev_p.
//! If prev_p == prev or prev_p == ++prev, this function is a null operation.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Constant.
//!
//! <b>Note</b>: Iterators of values obtained from list x now point to elements of this
//! list. Iterators of this list and all the references are not invalidated.
void splice_after(const_iterator prev_p, slist& x, const_iterator prev) BOOST_NOEXCEPT_OR_NOTHROW
{
BOOST_ASSERT(this->node_alloc() == x.node_alloc());
this->icont().splice_after(prev_p.get(), x.icont(), prev.get());
}
//! <b>Requires</b>: prev_p must be a valid iterator of this.
//! i must point to an element contained in list x.
//! this' allocator and x's allocator shall compare equal.
//!
//! <b>Effects</b>: Transfers the value pointed by i, from list x to this list,
//! after the element pointed by prev_p.
//! If prev_p == prev or prev_p == ++prev, this function is a null operation.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Constant.
//!
//! <b>Note</b>: Iterators of values obtained from list x now point to elements of this
//! list. Iterators of this list and all the references are not invalidated.
void splice_after(const_iterator prev_p, BOOST_RV_REF(slist) x, const_iterator prev) BOOST_NOEXCEPT_OR_NOTHROW
{ this->splice_after(prev_p, static_cast<slist&>(x), prev); }
//! <b>Requires</b>: prev_p must be a valid iterator of this.
//! before_first and before_last must be valid iterators of x.
//! prev_p must not be contained in [before_first, before_last) range.
//! this' allocator and x's allocator shall compare equal.
//!
//! <b>Effects</b>: Transfers the range [before_first + 1, before_last + 1)
//! from list x to this list, after the element pointed by prev_p.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Linear to the number of transferred elements.
//!
//! <b>Note</b>: Iterators of values obtained from list x now point to elements of this
//! list. Iterators of this list and all the references are not invalidated.
void splice_after(const_iterator prev_p, slist& x,
const_iterator before_first, const_iterator before_last) BOOST_NOEXCEPT_OR_NOTHROW
{
BOOST_ASSERT(this->node_alloc() == x.node_alloc());
this->icont().splice_after
(prev_p.get(), x.icont(), before_first.get(), before_last.get());
}
//! <b>Requires</b>: prev_p must be a valid iterator of this.
//! before_first and before_last must be valid iterators of x.
//! prev_p must not be contained in [before_first, before_last) range.
//! this' allocator and x's allocator shall compare equal.
//!
//! <b>Effects</b>: Transfers the range [before_first + 1, before_last + 1)
//! from list x to this list, after the element pointed by prev_p.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Linear to the number of transferred elements.
//!
//! <b>Note</b>: Iterators of values obtained from list x now point to elements of this
//! list. Iterators of this list and all the references are not invalidated.
void splice_after(const_iterator prev_p, BOOST_RV_REF(slist) x,
const_iterator before_first, const_iterator before_last) BOOST_NOEXCEPT_OR_NOTHROW
{ this->splice_after(prev_p, static_cast<slist&>(x), before_first, before_last); }
//! <b>Requires</b>: prev_p must be a valid iterator of this.
//! before_first and before_last must be valid iterators of x.
//! prev_p must not be contained in [before_first, before_last) range.
//! n == distance(before_first, before_last).
//! this' allocator and x's allocator shall compare equal.
//!
//! <b>Effects</b>: Transfers the range [before_first + 1, before_last + 1)
//! from list x to this list, after the element pointed by prev_p.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Constant.
//!
//! <b>Note</b>: Iterators of values obtained from list x now point to elements of this
//! list. Iterators of this list and all the references are not invalidated.
void splice_after(const_iterator prev_p, slist& x,
const_iterator before_first, const_iterator before_last,
size_type n) BOOST_NOEXCEPT_OR_NOTHROW
{
BOOST_ASSERT(this->node_alloc() == x.node_alloc());
this->icont().splice_after
(prev_p.get(), x.icont(), before_first.get(), before_last.get(), n);
}
//! <b>Requires</b>: prev_p must be a valid iterator of this.
//! before_first and before_last must be valid iterators of x.
//! prev_p must not be contained in [before_first, before_last) range.
//! n == distance(before_first, before_last).
//! this' allocator and x's allocator shall compare equal.
//!
//! <b>Effects</b>: Transfers the range [before_first + 1, before_last + 1)
//! from list x to this list, after the element pointed by prev_p.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Constant.
//!
//! <b>Note</b>: Iterators of values obtained from list x now point to elements of this
//! list. Iterators of this list and all the references are not invalidated.
void splice_after(const_iterator prev_p, BOOST_RV_REF(slist) x,
const_iterator before_first, const_iterator before_last,
size_type n) BOOST_NOEXCEPT_OR_NOTHROW
{ this->splice_after(prev_p, static_cast<slist&>(x), before_first, before_last, n); }
//! <b>Effects</b>: Removes all the elements that compare equal to value.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Linear time. It performs exactly size() comparisons for equality.
//!
//! <b>Note</b>: The relative order of elements that are not removed is unchanged,
//! and iterators to elements that are not removed remain valid.
void remove(const T& value)
{ this->remove_if(equal_to_value_type(value)); }
//! <b>Effects</b>: Removes all the elements for which a specified
//! predicate is satisfied.
//!
//! <b>Throws</b>: If pred throws.
//!
//! <b>Complexity</b>: Linear time. It performs exactly size() calls to the predicate.
//!
//! <b>Note</b>: The relative order of elements that are not removed is unchanged,
//! and iterators to elements that are not removed remain valid.
template <class Pred>
void remove_if(Pred pred)
{
typedef value_to_node_compare<Node, Pred> value_to_node_compare_type;
this->icont().remove_and_dispose_if(value_to_node_compare_type(pred), Destroyer(this->node_alloc()));
}
//! <b>Effects</b>: Removes adjacent duplicate elements or adjacent
//! elements that are equal from the list.
//!
//! <b>Throws</b>: If comparison throws.
//!
//! <b>Complexity</b>: Linear time (size()-1 comparisons equality comparisons).
//!
//! <b>Note</b>: The relative order of elements that are not removed is unchanged,
//! and iterators to elements that are not removed remain valid.
void unique()
{ this->unique(value_equal_t()); }
//! <b>Effects</b>: Removes adjacent duplicate elements or adjacent
//! elements that satisfy some binary predicate from the list.
//!
//! <b>Throws</b>: If pred throws.
//!
//! <b>Complexity</b>: Linear time (size()-1 comparisons calls to pred()).
//!
//! <b>Note</b>: The relative order of elements that are not removed is unchanged,
//! and iterators to elements that are not removed remain valid.
template <class Pred>
void unique(Pred pred)
{
typedef value_to_node_compare<Node, Pred> value_to_node_compare_type;
this->icont().unique_and_dispose(value_to_node_compare_type(pred), Destroyer(this->node_alloc()));
}
//! <b>Requires</b>: The lists x and *this must be distinct.
//!
//! <b>Effects</b>: This function removes all of x's elements and inserts them
//! in order into *this according to std::less<value_type>. The merge is stable;
//! that is, if an element from *this is equivalent to one from x, then the element
//! from *this will precede the one from x.
//!
//! <b>Throws</b>: If comparison throws.
//!
//! <b>Complexity</b>: This function is linear time: it performs at most
//! size() + x.size() - 1 comparisons.
void merge(slist & x)
{ this->merge(x, value_less_t()); }
//! <b>Requires</b>: The lists x and *this must be distinct.
//!
//! <b>Effects</b>: This function removes all of x's elements and inserts them
//! in order into *this according to std::less<value_type>. The merge is stable;
//! that is, if an element from *this is equivalent to one from x, then the element
//! from *this will precede the one from x.
//!
//! <b>Throws</b>: If comparison throws.
//!
//! <b>Complexity</b>: This function is linear time: it performs at most
//! size() + x.size() - 1 comparisons.
void merge(BOOST_RV_REF(slist) x)
{ this->merge(static_cast<slist&>(x)); }
//! <b>Requires</b>: p must be a comparison function that induces a strict weak
//! ordering and both *this and x must be sorted according to that ordering
//! The lists x and *this must be distinct.
//!
//! <b>Effects</b>: This function removes all of x's elements and inserts them
//! in order into *this. The merge is stable; that is, if an element from *this is
//! equivalent to one from x, then the element from *this will precede the one from x.
//!
//! <b>Throws</b>: If comp throws.
//!
//! <b>Complexity</b>: This function is linear time: it performs at most
//! size() + x.size() - 1 comparisons.
//!
//! <b>Note</b>: Iterators and references to *this are not invalidated.
template <class StrictWeakOrdering>
void merge(slist& x, StrictWeakOrdering comp)
{
typedef value_to_node_compare<Node, StrictWeakOrdering> value_to_node_compare_type;
BOOST_ASSERT(this->node_alloc() == x.node_alloc());
this->icont().merge(x.icont(), value_to_node_compare_type(comp));
}
//! <b>Requires</b>: p must be a comparison function that induces a strict weak
//! ordering and both *this and x must be sorted according to that ordering
//! The lists x and *this must be distinct.
//!
//! <b>Effects</b>: This function removes all of x's elements and inserts them
//! in order into *this. The merge is stable; that is, if an element from *this is
//! equivalent to one from x, then the element from *this will precede the one from x.
//!
//! <b>Throws</b>: If comp throws.
//!
//! <b>Complexity</b>: This function is linear time: it performs at most
//! size() + x.size() - 1 comparisons.
//!
//! <b>Note</b>: Iterators and references to *this are not invalidated.
template <class StrictWeakOrdering>
void merge(BOOST_RV_REF(slist) x, StrictWeakOrdering comp)
{ this->merge(static_cast<slist&>(x), comp); }
//! <b>Effects</b>: This function sorts the list *this according to std::less<value_type>.
//! The sort is stable, that is, the relative order of equivalent elements is preserved.
//!
//! <b>Throws</b>: If comparison throws.
//!
//! <b>Notes</b>: Iterators and references are not invalidated.
//!
//! <b>Complexity</b>: The number of comparisons is approximately N log N, where N
//! is the list's size.
void sort()
{ this->sort(value_less_t()); }
//! <b>Effects</b>: This function sorts the list *this according to std::less<value_type>.
//! The sort is stable, that is, the relative order of equivalent elements is preserved.
//!
//! <b>Throws</b>: If comp throws.
//!
//! <b>Notes</b>: Iterators and references are not invalidated.
//!
//! <b>Complexity</b>: The number of comparisons is approximately N log N, where N
//! is the list's size.
template <class StrictWeakOrdering>
void sort(StrictWeakOrdering comp)
{
typedef value_to_node_compare<Node, StrictWeakOrdering> value_to_node_compare_type;
// nothing if the slist has length 0 or 1.
if (this->size() < 2)
return;
this->icont().sort(value_to_node_compare_type(comp));
}
//! <b>Effects</b>: Reverses the order of elements in the list.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: This function is linear time.
//!
//! <b>Note</b>: Iterators and references are not invalidated
void reverse() BOOST_NOEXCEPT_OR_NOTHROW
{ this->icont().reverse(); }
//////////////////////////////////////////////
//
// list compatibility interface
//
//////////////////////////////////////////////
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
//! <b>Effects</b>: Inserts an object of type T constructed with
//! std::forward<Args>(args)... before p
//!
//! <b>Throws</b>: If memory allocation throws or
//! T's in-place constructor throws.
//!
//! <b>Complexity</b>: Linear to the elements before p
template <class... Args>
iterator emplace(const_iterator p, BOOST_FWD_REF(Args)... args)
{ return this->emplace_after(this->previous(p), boost::forward<Args>(args)...); }
#else
#define BOOST_CONTAINER_SLIST_EMPLACE_CODE(N) \
BOOST_MOVE_TMPL_LT##N BOOST_MOVE_CLASS##N BOOST_MOVE_GT##N \
iterator emplace(const_iterator p BOOST_MOVE_I##N BOOST_MOVE_UREF##N)\
{\
return this->emplace_after(this->previous(p) BOOST_MOVE_I##N BOOST_MOVE_FWD##N);\
}\
//
BOOST_MOVE_ITERATE_0TO9(BOOST_CONTAINER_SLIST_EMPLACE_CODE)
#undef BOOST_CONTAINER_SLIST_EMPLACE_CODE
#endif // !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
#if defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
//! <b>Requires</b>: p must be a valid iterator of *this.
//!
//! <b>Effects</b>: Insert a copy of x before p.
//!
//! <b>Returns</b>: an iterator to the inserted element.
//!
//! <b>Throws</b>: If memory allocation throws or x's copy constructor throws.
//!
//! <b>Complexity</b>: Linear to the elements before p.
iterator insert(const_iterator p, const T &x);
//! <b>Requires</b>: p must be a valid iterator of *this.
//!
//! <b>Effects</b>: Insert a new element before p with x's resources.
//!
//! <b>Returns</b>: an iterator to the inserted element.
//!
//! <b>Throws</b>: If memory allocation throws.
//!
//! <b>Complexity</b>: Linear to the elements before p.
iterator insert(const_iterator prev_p, T &&x);
#else
BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG(insert, T, iterator, priv_insert, const_iterator, const_iterator)
#endif
//! <b>Requires</b>: p must be a valid iterator of *this.
//!
//! <b>Effects</b>: Inserts n copies of x before p.
//!
//! <b>Returns</b>: an iterator to the first inserted element or p if n == 0.
//!
//! <b>Throws</b>: If memory allocation throws or T's copy constructor throws.
//!
//! <b>Complexity</b>: Linear to n plus linear to the elements before p.
iterator insert(const_iterator p, size_type n, const value_type& x)
{
const_iterator prev(this->previous(p));
this->insert_after(prev, n, x);
return ++iterator(prev.get());
}
//! <b>Requires</b>: p must be a valid iterator of *this.
//!
//! <b>Effects</b>: Insert a copy of the [first, last) range before p.
//!
//! <b>Returns</b>: an iterator to the first inserted element or p if first == last.
//!
//! <b>Throws</b>: If memory allocation throws, T's constructor from a
//! dereferenced InpIt throws.
//!
//! <b>Complexity</b>: Linear to distance [first, last) plus
//! linear to the elements before p.
template <class InIter>
iterator insert(const_iterator p, InIter first, InIter last)
{
const_iterator prev(this->previous(p));
this->insert_after(prev, first, last);
return ++iterator(prev.get());
}
#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
//! <b>Requires</b>: p must be a valid iterator of *this.
//!
//! <b>Effects</b>: Insert a copy of the [il.begin(), il.end()) range before p.
//!
//! <b>Returns</b>: an iterator to the first inserted element or p if il.begin() == il.end().
//!
//! <b>Throws</b>: If memory allocation throws, T's constructor from a
//! dereferenced std::initializer_list iterator throws.
//!
//! <b>Complexity</b>: Linear to the range [il.begin(), il.end()) plus
//! linear to the elements before p.
iterator insert(const_iterator p, std::initializer_list<value_type> il)
{
return insert(p, il.begin(), il.end());
}
#endif
//! <b>Requires</b>: p must be a valid iterator of *this.
//!
//! <b>Effects</b>: Erases the element at p.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Linear to the number of elements before p.
iterator erase(const_iterator p) BOOST_NOEXCEPT_OR_NOTHROW
{ return iterator(this->erase_after(previous(p))); }
//! <b>Requires</b>: first and last must be valid iterator to elements in *this.
//!
//! <b>Effects</b>: Erases the elements pointed by [first, last).
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Linear to the distance between first and last plus
//! linear to the elements before first.
iterator erase(const_iterator first, const_iterator last) BOOST_NOEXCEPT_OR_NOTHROW
{ return iterator(this->erase_after(previous(first), last)); }
//! <b>Requires</b>: p must point to an element contained
//! by the list. x != *this. this' allocator and x's allocator shall compare equal
//!
//! <b>Effects</b>: Transfers all the elements of list x to this list, before the
//! the element pointed by p. No destructors or copy constructors are called.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Linear in distance(begin(), p), and linear in x.size().
//!
//! <b>Note</b>: Iterators of values obtained from list x now point to elements of
//! this list. Iterators of this list and all the references are not invalidated.
void splice(const_iterator p, slist& x) BOOST_NOEXCEPT_OR_NOTHROW
{ this->splice_after(this->previous(p), x); }
//! <b>Requires</b>: p must point to an element contained
//! by the list. x != *this. this' allocator and x's allocator shall compare equal
//!
//! <b>Effects</b>: Transfers all the elements of list x to this list, before the
//! the element pointed by p. No destructors or copy constructors are called.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Linear in distance(begin(), p), and linear in x.size().
//!
//! <b>Note</b>: Iterators of values obtained from list x now point to elements of
//! this list. Iterators of this list and all the references are not invalidated.
void splice(const_iterator p, BOOST_RV_REF(slist) x) BOOST_NOEXCEPT_OR_NOTHROW
{ this->splice(p, static_cast<slist&>(x)); }
//! <b>Requires</b>: p must point to an element contained
//! by this list. i must point to an element contained in list x.
//! this' allocator and x's allocator shall compare equal
//!
//! <b>Effects</b>: Transfers the value pointed by i, from list x to this list,
//! before the element pointed by p. No destructors or copy constructors are called.
//! If p == i or p == ++i, this function is a null operation.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Linear in distance(begin(), p), and in distance(x.begin(), i).
//!
//! <b>Note</b>: Iterators of values obtained from list x now point to elements of this
//! list. Iterators of this list and all the references are not invalidated.
void splice(const_iterator p, slist& x, const_iterator i) BOOST_NOEXCEPT_OR_NOTHROW
{ this->splice_after(this->previous(p), x, x.previous(i)); }
//! <b>Requires</b>: p must point to an element contained
//! by this list. i must point to an element contained in list x.
//! this' allocator and x's allocator shall compare equal.
//!
//! <b>Effects</b>: Transfers the value pointed by i, from list x to this list,
//! before the element pointed by p. No destructors or copy constructors are called.
//! If p == i or p == ++i, this function is a null operation.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Linear in distance(begin(), p), and in distance(x.begin(), i).
//!
//! <b>Note</b>: Iterators of values obtained from list x now point to elements of this
//! list. Iterators of this list and all the references are not invalidated.
void splice(const_iterator p, BOOST_RV_REF(slist) x, const_iterator i) BOOST_NOEXCEPT_OR_NOTHROW
{ this->splice(p, static_cast<slist&>(x), i); }
//! <b>Requires</b>: p must point to an element contained
//! by this list. first and last must point to elements contained in list x.
//!
//! <b>Effects</b>: Transfers the range pointed by first and last from list x to this list,
//! before the element pointed by p. No destructors or copy constructors are called.
//! this' allocator and x's allocator shall compare equal.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Linear in distance(begin(), p), in distance(x.begin(), first),
//! and in distance(first, last).
//!
//! <b>Note</b>: Iterators of values obtained from list x now point to elements of this
//! list. Iterators of this list and all the references are not invalidated.
void splice(const_iterator p, slist& x, const_iterator first, const_iterator last) BOOST_NOEXCEPT_OR_NOTHROW
{ this->splice_after(this->previous(p), x, x.previous(first), x.previous(last)); }
//! <b>Requires</b>: p must point to an element contained
//! by this list. first and last must point to elements contained in list x.
//! this' allocator and x's allocator shall compare equal
//!
//! <b>Effects</b>: Transfers the range pointed by first and last from list x to this list,
//! before the element pointed by p. No destructors or copy constructors are called.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Linear in distance(begin(), p), in distance(x.begin(), first),
//! and in distance(first, last).
//!
//! <b>Note</b>: Iterators of values obtained from list x now point to elements of this
//! list. Iterators of this list and all the references are not invalidated.
void splice(const_iterator p, BOOST_RV_REF(slist) x, const_iterator first, const_iterator last) BOOST_NOEXCEPT_OR_NOTHROW
{ this->splice(p, static_cast<slist&>(x), first, last); }
//! <b>Effects</b>: Returns true if x and y are equal
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator==(const slist& x, const slist& y)
{ return x.size() == y.size() && ::boost::container::algo_equal(x.begin(), x.end(), y.begin()); }
//! <b>Effects</b>: Returns true if x and y are unequal
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator!=(const slist& x, const slist& y)
{ return !(x == y); }
//! <b>Effects</b>: Returns true if x is less than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator<(const slist& x, const slist& y)
{ return ::boost::container::algo_lexicographical_compare(x.begin(), x.end(), y.begin(), y.end()); }
//! <b>Effects</b>: Returns true if x is greater than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator>(const slist& x, const slist& y)
{ return y < x; }
//! <b>Effects</b>: Returns true if x is equal or less than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator<=(const slist& x, const slist& y)
{ return !(y < x); }
//! <b>Effects</b>: Returns true if x is equal or greater than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator>=(const slist& x, const slist& y)
{ return !(x < y); }
//! <b>Effects</b>: x.swap(y)
//!
//! <b>Complexity</b>: Constant.
friend void swap(slist& x, slist& y)
{ x.swap(y); }
#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
private:
void priv_push_front (const T &x)
{ this->insert_after(this->cbefore_begin(), x); }
void priv_push_front (BOOST_RV_REF(T) x)
{ this->insert_after(this->cbefore_begin(), ::boost::move(x)); }
bool priv_try_shrink(size_type new_size, const_iterator &last_pos)
{
typename Icont::iterator end_n(this->icont().end()), cur(this->icont().before_begin()), cur_next;
while (++(cur_next = cur) != end_n && new_size > 0){
--new_size;
cur = cur_next;
}
last_pos = const_iterator(cur);
if (cur_next != end_n){
this->erase_after(last_pos, const_iterator(end_n));
return true;
}
else{
return false;
}
}
template<class U>
iterator priv_insert(const_iterator p, BOOST_FWD_REF(U) x)
{ return this->insert_after(previous(p), ::boost::forward<U>(x)); }
template<class U>
iterator priv_insert_after(const_iterator prev_p, BOOST_FWD_REF(U) x)
{ return iterator(this->icont().insert_after(prev_p.get(), *this->create_node(::boost::forward<U>(x)))); }
class insertion_functor;
friend class insertion_functor;
class insertion_functor
{
Icont &icont_;
typedef typename Icont::iterator iiterator;
typedef typename Icont::const_iterator iconst_iterator;
const iconst_iterator prev_;
iiterator ret_;
public:
insertion_functor(Icont &icont, typename Icont::const_iterator prev)
: icont_(icont), prev_(prev), ret_(prev.unconst())
{}
void operator()(Node &n)
{
ret_ = this->icont_.insert_after(prev_, n);
}
iiterator inserted_first() const
{ return ret_; }
};
//Functors for member algorithm defaults
typedef value_less<value_type> value_less_t;
typedef value_equal<value_type> value_equal_t;
#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
};
#ifndef BOOST_CONTAINER_NO_CXX17_CTAD
template <typename InpIt>
slist(InpIt, InpIt) ->
slist<typename iterator_traits<InpIt>::value_type>;
template <typename InpIt, typename Allocator>
slist(InpIt, InpIt, Allocator const&) ->
slist<typename iterator_traits<InpIt>::value_type, Allocator>;
#endif
}}
#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
namespace boost {
//!has_trivial_destructor_after_move<> == true_type
//!specialization for optimizations
template <class T, class Allocator>
struct has_trivial_destructor_after_move<boost::container::slist<T, Allocator> >
{
typedef typename boost::container::slist<T, Allocator>::allocator_type allocator_type;
typedef typename ::boost::container::allocator_traits<allocator_type>::pointer pointer;
static const bool value = ::boost::has_trivial_destructor_after_move<allocator_type>::value &&
::boost::has_trivial_destructor_after_move<pointer>::value;
};
namespace container {
}} //namespace boost{ namespace container {
#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
// Specialization of insert_iterator so that insertions will be constant
// time rather than linear time.
#include <boost/move/detail/std_ns_begin.hpp>
BOOST_CONTAINER_DOC1ST(namespace std {, BOOST_MOVE_STD_NS_BEG)
//! A specialization of insert_iterator
//! that works with slist
template <class T, class ValueAllocator>
class insert_iterator<boost::container::slist<T, ValueAllocator> >
{
private:
typedef boost::container::slist<T, ValueAllocator> Container;
Container* container;
typename Container::iterator iter;
public:
typedef Container container_type;
typedef output_iterator_tag iterator_category;
typedef void value_type;
typedef void difference_type;
typedef void pointer;
typedef void reference;
insert_iterator(Container& x,
typename Container::iterator i,
bool is_previous = false)
: container(&x), iter(is_previous ? i : x.previous(i)){ }
insert_iterator<Container>&
operator=(const typename Container::value_type& value)
{
iter = container->insert_after(iter, value);
return *this;
}
insert_iterator<Container>& operator*(){ return *this; }
insert_iterator<Container>& operator++(){ return *this; }
insert_iterator<Container>& operator++(int){ return *this; }
};
BOOST_CONTAINER_DOC1ST( }, BOOST_MOVE_STD_NS_END)
#include <boost/move/detail/std_ns_end.hpp>
#include <boost/container/detail/config_end.hpp>
#endif // BOOST_CONTAINER_SLIST_HPP