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misc
unique_ptr.hh
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// -*- coding: utf-8 -*-
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// Copyright (C) 2012, 2013 Laboratoire de Recherche et
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// Développement de l'Epita (LRDE).
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//
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// This file is part of Spot, a model checking library.
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//
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// Spot is free software; you can redistribute it and/or modify it
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// under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 3 of the License, or
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// (at your option) any later version.
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//
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// Spot is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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// License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef SPOT_MISC_UNIQUE_PTR_HH
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# define SPOT_MISC_UNIQUE_PTR_HH
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namespace
spot
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{
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template
<
typename
T>
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class
unique_ptr
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{
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typedef
T* pointer;
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typedef
const
T* const_pointer;
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public
:
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unique_ptr
(pointer ptr)
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: ptr_(ptr)
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{
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}
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~
unique_ptr
()
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{
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delete
ptr_;
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}
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operator
pointer()
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{
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return
ptr_;
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}
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pointer
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operator->()
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{
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return
ptr_;
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}
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const_pointer
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operator->()
const
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{
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return
ptr_;
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}
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private
:
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pointer ptr_;
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// This copy gives the ownership of the pointer to the new copy.
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// Can only be used by make_unique.
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unique_ptr
(
const
unique_ptr
& up)
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{
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unique_ptr
& non_const_up =
const_cast<
unique_ptr
&
>
(up);
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ptr_ = non_const_up.ptr_;
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non_const_up.ptr_ = 0;
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}
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// Allow `make_unique' to have an access to the private copy.
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template
<
typename
V>
friend
unique_ptr<V>
make_unique(V* ptr);
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unique_ptr
& operator=(
const
unique_ptr
&);
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};
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template
<
typename
T>
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inline
unique_ptr<T>
make_unique(T* ptr)
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{
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return
unique_ptr<T>
(ptr);
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}
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}
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#endif // !SPOT_MISC_UNIQUE_PTR_HH
Please direct any
question
,
comment
, or
bug report
to the Spot mailing list at
spot@lrde.epita.fr
.
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