70 lines
1.9 KiB
C++
70 lines
1.9 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: wx/meta/pod.h
|
|
// Purpose: Test if a type is POD
|
|
// Author: Vaclav Slavik, Jaakko Salli
|
|
// Created: 2010-06-14
|
|
// Copyright: (c) wxWidgets team
|
|
// Licence: wxWindows licence
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _WX_META_POD_H_
|
|
#define _WX_META_POD_H_
|
|
|
|
#include "wx/defs.h"
|
|
|
|
//
|
|
// TODO: Use TR1 is_pod<> implementation where available. VC9 SP1 has it
|
|
// in tr1 namespace, VC10 has it in std namespace. GCC 4.2 has it in
|
|
// <tr1/type_traits>, while GCC 4.3 and later have it in <type_traits>.
|
|
//
|
|
|
|
// Helper to decide if an object of type T is POD (Plain Old Data)
|
|
template<typename T>
|
|
struct wxIsPod
|
|
{
|
|
static const bool value = false;
|
|
};
|
|
|
|
// Macro to add wxIsPod<T> specialization for given type that marks it
|
|
// as Plain Old Data:
|
|
#define WX_DECLARE_TYPE_POD(type) \
|
|
template<> struct wxIsPod<type> \
|
|
{ \
|
|
static const bool value = true; \
|
|
};
|
|
|
|
WX_DECLARE_TYPE_POD(bool)
|
|
WX_DECLARE_TYPE_POD(unsigned char)
|
|
WX_DECLARE_TYPE_POD(signed char)
|
|
WX_DECLARE_TYPE_POD(unsigned int)
|
|
WX_DECLARE_TYPE_POD(signed int)
|
|
WX_DECLARE_TYPE_POD(unsigned short int)
|
|
WX_DECLARE_TYPE_POD(signed short int)
|
|
WX_DECLARE_TYPE_POD(signed long int)
|
|
WX_DECLARE_TYPE_POD(unsigned long int)
|
|
WX_DECLARE_TYPE_POD(float)
|
|
WX_DECLARE_TYPE_POD(double)
|
|
WX_DECLARE_TYPE_POD(long double)
|
|
#if wxWCHAR_T_IS_REAL_TYPE
|
|
WX_DECLARE_TYPE_POD(wchar_t)
|
|
#endif
|
|
#ifdef wxLongLong_t
|
|
WX_DECLARE_TYPE_POD(wxLongLong_t)
|
|
WX_DECLARE_TYPE_POD(wxULongLong_t)
|
|
#endif
|
|
|
|
// pointers are Plain Old Data:
|
|
template<typename T>
|
|
struct wxIsPod<T*>
|
|
{
|
|
static const bool value = true;
|
|
};
|
|
|
|
template<typename T>
|
|
struct wxIsPod<const T*>
|
|
{
|
|
static const bool value = true;
|
|
};
|
|
|
|
#endif // _WX_META_POD_H_
|