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67 lines
2.7 KiB
C++
67 lines
2.7 KiB
C++
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//////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright Ion Gaztanaga 2015-2015. 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_PMR_GLOBAL_RESOURCE_HPP
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#define BOOST_CONTAINER_PMR_GLOBAL_RESOURCE_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/detail/auto_link.hpp>
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#include <cstddef>
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namespace boost {
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namespace container {
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namespace pmr {
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/// @cond
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class memory_resource;
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/// @endcond
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//! <b>Returns</b>: A pointer to a static-duration object of a type derived from
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//! memory_resource that can serve as a resource for allocating memory using
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//! global `operator new` and global `operator delete`. The same value is returned every time this function
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//! is called. For return value p and memory resource r, p->is_equal(r) returns &r == p.
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BOOST_CONTAINER_DECL memory_resource* new_delete_resource() BOOST_NOEXCEPT;
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//! <b>Returns</b>: A pointer to a static-duration object of a type derived from
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//! memory_resource for which allocate() always throws bad_alloc and for which
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//! deallocate() has no effect. The same value is returned every time this function
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//! is called. For return value p and memory resource r, p->is_equal(r) returns &r == p.
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BOOST_CONTAINER_DECL memory_resource* null_memory_resource() BOOST_NOEXCEPT;
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//! <b>Effects</b>: If r is non-null, sets the value of the default memory resource
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//! pointer to r, otherwise sets the default memory resource pointer to new_delete_resource().
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//!
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//! <b>Postconditions</b>: get_default_resource() == r.
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//!
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//! <b>Returns</b>: The previous value of the default memory resource pointer.
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//!
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//! <b>Remarks</b>: Calling the set_default_resource and get_default_resource functions shall
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//! not incur a data race. A call to the set_default_resource function shall synchronize
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//! with subsequent calls to the set_default_resource and get_default_resource functions.
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BOOST_CONTAINER_DECL memory_resource* set_default_resource(memory_resource* r) BOOST_NOEXCEPT;
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//! <b>Returns</b>: The current value of the default
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//! memory resource pointer.
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BOOST_CONTAINER_DECL memory_resource* get_default_resource() BOOST_NOEXCEPT;
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} //namespace pmr {
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} //namespace container {
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} //namespace boost {
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#include <boost/container/detail/config_end.hpp>
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#endif //BOOST_CONTAINER_PMR_GLOBAL_RESOURCE_HPP
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