forked from premiere/premiere-libtorrent
70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
/*
|
|
|
|
Copyright (c) 2010-2015, Arvid Norberg
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
|
|
* Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
* Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in
|
|
the documentation and/or other materials provided with the distribution.
|
|
* Neither the name of the author nor the names of its
|
|
contributors may be used to endorse or promote products derived
|
|
from this software without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
*/
|
|
|
|
#ifndef TORRENT_COPY_PTR
|
|
#define TORRENT_COPY_PTR
|
|
|
|
namespace libtorrent
|
|
{
|
|
template <class T>
|
|
struct copy_ptr
|
|
{
|
|
copy_ptr(): m_ptr(0) {}
|
|
copy_ptr(T* t): m_ptr(t) {}
|
|
copy_ptr(copy_ptr const& p): m_ptr(p.m_ptr ? new T(*p.m_ptr) : 0) {}
|
|
void reset(T* t = 0) { delete m_ptr; m_ptr = t; }
|
|
copy_ptr& operator=(copy_ptr const& p)
|
|
{
|
|
delete m_ptr;
|
|
m_ptr = p.m_ptr ? new T(*p.m_ptr) : 0;
|
|
return *this;
|
|
}
|
|
T* operator->() { return m_ptr; }
|
|
T const* operator->() const { return m_ptr; }
|
|
T& operator*() { return *m_ptr; }
|
|
T const& operator*() const { return *m_ptr; }
|
|
void swap(copy_ptr<T>& p)
|
|
{
|
|
T* tmp = m_ptr;
|
|
m_ptr = p.m_ptr;
|
|
p.m_ptr = tmp;
|
|
}
|
|
operator bool() const { return m_ptr != 0; }
|
|
~copy_ptr() { delete m_ptr; }
|
|
private:
|
|
T* m_ptr;
|
|
};
|
|
}
|
|
|
|
#endif // TORRENT_COPY_PTR
|
|
|