QxOrm  1.5.0
C++ Object Relational Mapping library
is_ptr_to_pod.h
Go to the documentation of this file.
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 :
00028 ** contact@qxorm.com
00029 **
00030 ****************************************************************************/
00031 
00032 #ifndef _QX_IS_PTR_TO_POD_H_
00033 #define _QX_IS_PTR_TO_POD_H_
00034 
00035 #ifdef _MSC_VER
00036 #pragma once
00037 #endif
00038 
00046 #include <QxTraits/is_qx_pod.h>
00047 
00048 namespace qx {
00049 namespace trait {
00050 
00055 template <typename T>
00056 class is_ptr_to_pod
00057 {
00058 
00059 private:
00060 
00061    template <typename U>
00062    static typename std::conditional<qx::trait::is_qx_pod<U>::value, char, int>::type removePtr(const volatile U * const volatile);
00063 
00064    static int removePtr(...);
00065    static T t;
00066 
00067 public:
00068 
00069    enum { value = (std::is_pointer<T>::value && (sizeof(qx::trait::is_ptr_to_pod<T>::removePtr(t)) == sizeof(char))) };
00070 
00071    typedef typename std::conditional<qx::trait::is_ptr_to_pod<T>::value, std::true_type, std::false_type>::type type;
00072 
00073 };
00074 
00075 } // namespace trait
00076 } // namespace qx
00077 
00078 #endif // _QX_IS_PTR_TO_POD_H_