QxOrm  1.4.2
C++ Object Relational Mapping library
QxSerializeQDataStream_std_shared_ptr.h
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00001 /****************************************************************************
00002 **
00003 ** http://www.qxorm.com/
00004 ** Copyright (C) 2013 Lionel Marty (contact@qxorm.com)
00005 **
00006 ** This file is part of the QxOrm library
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00018 ** GNU General Public License Usage
00019 ** Alternatively, this file may be used under the terms of the GNU
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00031 
00032 #ifdef _QX_CPP_11_SMART_PTR
00033 #ifndef BOOST_NO_CXX11_SMART_PTR
00034 #ifndef _QX_SERIALIZE_QDATASTREAM_STD_SHARED_PTR_H_
00035 #define _QX_SERIALIZE_QDATASTREAM_STD_SHARED_PTR_H_
00036 
00037 #ifdef _MSC_VER
00038 #pragma once
00039 #endif
00040 
00048 #include <QtCore/qdatastream.h>
00049 
00050 #include <memory>
00051 
00052 template <typename T>
00053 QDataStream & operator<< (QDataStream & stream, const std::shared_ptr<T> & t)
00054 {
00055    qint8 iIsNull = (t ? 0 : 1);
00056    stream << iIsNull;
00057    if (t) { stream << (* t); }
00058    return stream;
00059 }
00060 
00061 template <typename T>
00062 QDataStream & operator>> (QDataStream & stream, std::shared_ptr<T> & t)
00063 {
00064    qint8 iIsNull = 0;
00065    stream >> iIsNull;
00066    if (! iIsNull) { t.reset(new T()); stream >> (* t); }
00067    else { t.reset(); }
00068    return stream;
00069 }
00070 
00071 #endif // _QX_SERIALIZE_QDATASTREAM_STD_SHARED_PTR_H_
00072 #endif // BOOST_NO_CXX11_SMART_PTR
00073 #endif // _QX_CPP_11_SMART_PTR