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is_smart_ptr_to_pod.h
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    00001 /****************************************************************************
    00002 **
    00003 ** https://www.qxorm.com/
    00004 ** Copyright (C) 2013 Lionel Marty (contact@qxorm.com)
    00005 **
    00006 ** This file is part of the QxOrm library
    00007 **
    00008 ** This software is provided 'as-is', without any express or implied
    00009 ** warranty. In no event will the authors be held liable for any
    00010 ** damages arising from the use of this software
    00011 **
    00012 ** Commercial Usage
    00013 ** Licensees holding valid commercial QxOrm licenses may use this file in
    00014 ** accordance with the commercial license agreement provided with the
    00015 ** Software or, alternatively, in accordance with the terms contained in
    00016 ** a written agreement between you and Lionel Marty
    00017 **
    00018 ** GNU General Public License Usage
    00019 ** Alternatively, this file may be used under the terms of the GNU
    00020 ** General Public License version 3.0 as published by the Free Software
    00021 ** Foundation and appearing in the file 'license.gpl3.txt' included in the
    00022 ** packaging of this file. Please review the following information to
    00023 ** ensure the GNU General Public License version 3.0 requirements will be
    00024 ** met : http://www.gnu.org/copyleft/gpl.html
    00025 **
    00026 ** If you are unsure which license is appropriate for your use, or
    00027 ** if you have questions regarding the use of this file, please contact :
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    00029 **
    00030 ****************************************************************************/
    00031
    00032 #ifndef _QX_IS_SMART_PTR_TO_POD_H_
    00033 #define _QX_IS_SMART_PTR_TO_POD_H_
    00034
    00035 #ifdef _MSC_VER
    00036 #pragma once
    00037 #endif
    00038
    00046 #include <QxTraits/is_smart_ptr.h>
    00047 #include <QxTraits/is_qx_pod.h>
    00048
    00049 namespace qx {
    00050 namespace trait {
    00051
    00056 template <typename T>
    00057 class is_smart_ptr_to_pod
    00058 {
    00059
    00060 private:
    00061
    00062 #ifdef _QX_ENABLE_BOOST
    00063
    00064    template <typename U>
    00065    static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const boost::scoped_ptr<U> &);
    00066
    00067    template <typename U>
    00068    static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const boost::shared_ptr<U> &);
    00069
    00070    template <typename U>
    00071    static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const boost::weak_ptr<U> &);
    00072
    00073    template <typename U>
    00074    static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const boost::intrusive_ptr<U> &);
    00075
    00076 #endif // _QX_ENABLE_BOOST
    00077
    00078    template <typename U>
    00079    static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const QSharedDataPointer<U> &);
    00080
    00081    template <typename U>
    00082    static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const QSharedPointer<U> &);
    00083
    00084    template <typename U>
    00085    static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const QWeakPointer<U> &);
    00086
    00087    template <typename U>
    00088    static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const qx::dao::ptr<U> &);
    00089
    00090    template <typename U>
    00091    static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const std::unique_ptr<U> &);
    00092
    00093    template <typename U>
    00094    static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const std::shared_ptr<U> &);
    00095
    00096    template <typename U>
    00097    static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const std::weak_ptr<U> &);
    00098
    00099    static int removeSmartPtr(...);
    00100    static T t;
    00101
    00102 public:
    00103
    00104    enum { value = (qx::trait::is_smart_ptr<T>::value && (sizeof(qx::trait::is_smart_ptr_to_pod<T>::removeSmartPtr(t)) == sizeof(char))) };
    00105
    00106    typedef typename std::conditional<qx::trait::is_smart_ptr_to_pod<T>::value, std::true_type, std::false_type>::type type;
    00107
    00108 };
    00109
    00110 } // namespace trait
    00111 } // namespace qx
    00112
    00113 #endif // _QX_IS_SMART_PTR_TO_POD_H_