FM / detail

/usr/include/boost/multi_index/detail

Name	Size	Mode	Actions
access_specifier.hpp	2115	0644	edit dl rm
adl_swap.hpp	858	0644	edit dl rm
allocator_traits.hpp	4957	0644	edit dl rm
archive_constructed.hpp	1991	0644	edit dl rm
auto_space.hpp	2907	0644	edit dl rm
base_type.hpp	1981	0644	edit dl rm
bidir_node_iterator.hpp	2584	0644	edit dl rm
bucket_array.hpp	7730	0644	edit dl rm
cons_stdtuple.hpp	2206	0644	edit dl rm
converter.hpp	1372	0644	edit dl rm
copy_map.hpp	4713	0644	edit dl rm
define_if_constexpr_macro.hpp	876	0644	edit dl rm
do_not_copy_elements_tag.hpp	762	0644	edit dl rm
duplicates_iterator.hpp	2574	0644	edit dl rm
hash_index_args.hpp	3066	0644	edit dl rm
hash_index_iterator.hpp	4407	0644	edit dl rm
hash_index_node.hpp	23170	0644	edit dl rm
has_tag.hpp	915	0644	edit dl rm
header_holder.hpp	1296	0644	edit dl rm
ignore_wstrict_aliasing.hpp	548	0644	edit dl rm
index_base.hpp	9189	0644	edit dl rm
index_loader.hpp	3472	0644	edit dl rm
index_matcher.hpp	6134	0644	edit dl rm
index_node_base.hpp	3500	0644	edit dl rm
index_saver.hpp	3787	0644	edit dl rm
invariant_assert.hpp	578	0644	edit dl rm
is_function.hpp	1439	0644	edit dl rm
is_index_list.hpp	978	0644	edit dl rm
is_transparent.hpp	3616	0644	edit dl rm
iter_adaptor.hpp	7591	0644	edit dl rm
modify_key_adaptor.hpp	1066	0644	edit dl rm
node_handle.hpp	6249	0644	edit dl rm
node_type.hpp	1783	0644	edit dl rm
no_duplicate_tags.hpp	2213	0644	edit dl rm
ord_index_args.hpp	2363	0644	edit dl rm
ord_index_impl.hpp	49850	0644	edit dl rm
ord_index_impl_fwd.hpp	4024	0644	edit dl rm
ord_index_node.hpp	20137	0644	edit dl rm
ord_index_ops.hpp	7629	0644	edit dl rm
promotes_arg.hpp	1886	0644	edit dl rm
raw_ptr.hpp	1187	0644	edit dl rm
restore_wstrict_aliasing.hpp	457	0644	edit dl rm
rnd_index_loader.hpp	4886	0644	edit dl rm
rnd_index_node.hpp	6453	0644	edit dl rm
rnd_index_ops.hpp	6003	0644	edit dl rm
rnd_index_ptr_array.hpp	3499	0644	edit dl rm
rnd_node_iterator.hpp	3135	0644	edit dl rm
rnk_index_ops.hpp	8621	0644	edit dl rm
safe_mode.hpp	18103	0644	edit dl rm
scope_guard.hpp	13703	0644	edit dl rm
seq_index_node.hpp	5455	0644	edit dl rm
seq_index_ops.hpp	6152	0644	edit dl rm
serialization_version.hpp	1801	0644	edit dl rm
uintptr_type.hpp	2446	0644	edit dl rm
unbounded.hpp	1556	0644	edit dl rm
undef_if_constexpr_macro.hpp	459	0644	edit dl rm
value_compare.hpp	1240	0644	edit dl rm
vartempl_support.hpp	10965	0644	edit dl rm

Edit: /usr/include/boost/multi_index/detail/auto_space.hpp (2907B)

/* Copyright 2003-2020 Joaquin M Lopez Munoz.
 * 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/multi_index for library home page.
 */

#ifndef BOOST_MULTI_INDEX_DETAIL_AUTO_SPACE_HPP
#define BOOST_MULTI_INDEX_DETAIL_AUTO_SPACE_HPP

#if defined(_MSC_VER)
#pragma once
#endif

#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
#include <algorithm>
#include <boost/multi_index/detail/adl_swap.hpp>
#include <boost/multi_index/detail/allocator_traits.hpp>
#include <boost/noncopyable.hpp>
#include <boost/type_traits/integral_constant.hpp>
#include <memory>

namespace boost{

namespace multi_index{

namespace detail{

/* auto_space provides uninitialized space suitably to store
 * a given number of elements of a given type.
 */

/* NB: it is not clear whether using an allocator to handle
 * zero-sized arrays of elements is conformant or not. GCC 3.3.1
 * and prior fail here, other stdlibs handle the issue gracefully.
 * To be on the safe side, the case n==0 is given special treatment.
 * References:
 *   GCC Bugzilla, "standard allocator crashes when deallocating segment
 *    "of zero length", http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14176
 *   C++ Standard Library Defect Report List (Revision 28), issue 199
 *     "What does allocate(0) return?",
 *     http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#199
 */

template<typename T,typename Allocator=std::allocator<T> >
struct auto_space:private noncopyable
{
  typedef typename rebind_alloc_for<
    Allocator,T>
  ::type                                   allocator;
  typedef allocator_traits<allocator>      alloc_traits;
  typedef typename alloc_traits::pointer   pointer;
  typedef typename alloc_traits::size_type size_type;

explicit auto_space(const Allocator& al=Allocator(),size_type n=1):
  al_(al),n_(n),data_(n_?alloc_traits::allocate(al_,n_):pointer(0))
  {}

~auto_space(){if(n_)alloc_traits::deallocate(al_,data_,n_);}

Allocator get_allocator()const{return al_;}

pointer data()const{return data_;}

void swap(auto_space& x)
  {
    swap(
      x,
      boost::integral_constant<
        bool,alloc_traits::propagate_on_container_swap::value>());
  }

void swap(auto_space& x,boost::true_type /* swap_allocators */)
  {
    adl_swap(al_,x.al_);
    std::swap(n_,x.n_);
    std::swap(data_,x.data_);
  }
    
  void swap(auto_space& x,boost::false_type /* swap_allocators */)
  {
    std::swap(n_,x.n_);
    std::swap(data_,x.data_);
  }

private:
  allocator al_;
  size_type n_;
  pointer   data_;
};

template<typename T,typename Allocator>
void swap(auto_space<T,Allocator>& x,auto_space<T,Allocator>& y)
{
  x.swap(y);
}

} /* namespace multi_index::detail */

} /* namespace multi_index */

} /* namespace boost */

#endif

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