You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
220 lines
6.2 KiB
220 lines
6.2 KiB
/* /////////////////////////////////////////////////////////////////////////
|
|
* File: stlsoft/conversion/any_cast.hpp
|
|
*
|
|
* Purpose: A dangerous, but sometimes necessary, tool for handling bad
|
|
* libraries.
|
|
*
|
|
* Created: 12th May 2004
|
|
* Updated: 10th August 2009
|
|
*
|
|
* Home: http://stlsoft.org/
|
|
*
|
|
* Copyright (c) 2004-2009, Matthew Wilson and Synesis Software
|
|
* 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(s) of Matthew Wilson and Synesis Software nor the names of
|
|
* any 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.
|
|
*
|
|
* ////////////////////////////////////////////////////////////////////// */
|
|
|
|
|
|
/** \file stlsoft/conversion/any_cast.hpp
|
|
*
|
|
* \brief [C++ only] Definition of the stlsoft::any_caster cast class
|
|
* (\ref group__library__conversion "Conversion" Library).
|
|
*/
|
|
|
|
#ifndef STLSOFT_INCL_STLSOFT_CONVERSION_HPP_ANY_CAST
|
|
#define STLSOFT_INCL_STLSOFT_CONVERSION_HPP_ANY_CAST
|
|
|
|
#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
|
|
# define STLSOFT_VER_STLSOFT_CONVERSION_HPP_ANY_CAST_MAJOR 4
|
|
# define STLSOFT_VER_STLSOFT_CONVERSION_HPP_ANY_CAST_MINOR 0
|
|
# define STLSOFT_VER_STLSOFT_CONVERSION_HPP_ANY_CAST_REVISION 1
|
|
# define STLSOFT_VER_STLSOFT_CONVERSION_HPP_ANY_CAST_EDIT 33
|
|
#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
|
|
|
|
/* /////////////////////////////////////////////////////////////////////////
|
|
* Includes
|
|
*/
|
|
|
|
#ifndef STLSOFT_INCL_STLSOFT_H_STLSOFT
|
|
# include <stlsoft/stlsoft.h>
|
|
#endif /* !STLSOFT_INCL_STLSOFT_H_STLSOFT */
|
|
|
|
/* /////////////////////////////////////////////////////////////////////////
|
|
* Namespace
|
|
*/
|
|
|
|
#ifndef _STLSOFT_NO_NAMESPACE
|
|
namespace stlsoft
|
|
{
|
|
#endif /* _STLSOFT_NO_NAMESPACE */
|
|
|
|
/* /////////////////////////////////////////////////////////////////////////
|
|
* Classes
|
|
*/
|
|
|
|
/** \brief Helper class used by any_caster, to define invalid conversions.
|
|
*
|
|
* \ingroup group__library__conversion
|
|
*
|
|
*/
|
|
template <ss_size_t N>
|
|
struct any_caster_invalid_type
|
|
{
|
|
/// \name Member Types
|
|
/// @{
|
|
public:
|
|
typedef any_caster_invalid_type<N> class_type;
|
|
/// @}
|
|
|
|
/// \name Not to be implemented
|
|
/// @{
|
|
#if defined(STLSOFT_CF_COMPILER_WARNS_NO_PUBLIC_DTOR)
|
|
protected:
|
|
#else /* ? compiler */
|
|
private:
|
|
#endif /* compiler */
|
|
any_caster_invalid_type();
|
|
any_caster_invalid_type(class_type const&);
|
|
/// @}
|
|
};
|
|
|
|
/** \brief A dangerous, but sometimes necessary, tool for handling bad libraries.
|
|
*
|
|
* \ingroup group__library__conversion
|
|
*
|
|
* This class helps overcome problems when external libraries have errors in
|
|
* their function parameter declarations, resulting in compilation-time type
|
|
* errors with some versions of the libraries, and not with others.
|
|
*
|
|
* \note See inetstl::filesystem_traits<char>::find_first_file() for an
|
|
* example of its use.
|
|
*/
|
|
template< ss_typename_param_k T
|
|
, ss_typename_param_k T1
|
|
, ss_typename_param_k T2
|
|
, ss_typename_param_k T3 = any_caster_invalid_type<3>*
|
|
, ss_typename_param_k T4 = any_caster_invalid_type<4>*
|
|
, ss_typename_param_k T5 = any_caster_invalid_type<5>*
|
|
, ss_typename_param_k T6 = any_caster_invalid_type<6>*
|
|
, ss_typename_param_k T7 = any_caster_invalid_type<7>*
|
|
, ss_typename_param_k T8 = any_caster_invalid_type<8>*
|
|
>
|
|
union any_caster
|
|
{
|
|
/// \name Member Types
|
|
/// @{
|
|
public:
|
|
typedef any_caster<T, T1, T2, T3, T4, T5, T6, T7, T8> class_type;
|
|
/// @}
|
|
|
|
/// \name Construction
|
|
/// @{
|
|
public:
|
|
/// Constructs an instance from the source type
|
|
ss_explicit_k any_caster(T t_)
|
|
{
|
|
this->t = t_;
|
|
}
|
|
/// @}
|
|
|
|
/// \name Conversion
|
|
/// @{
|
|
public:
|
|
operator T1 () const
|
|
{
|
|
return t1;
|
|
}
|
|
operator T2 () const
|
|
{
|
|
return t2;
|
|
}
|
|
operator T3 () const
|
|
{
|
|
return t3;
|
|
}
|
|
operator T4 () const
|
|
{
|
|
return t4;
|
|
}
|
|
operator T5 () const
|
|
{
|
|
return t5;
|
|
}
|
|
operator T6 () const
|
|
{
|
|
return t6;
|
|
}
|
|
operator T7 () const
|
|
{
|
|
return t7;
|
|
}
|
|
operator T8 () const
|
|
{
|
|
return t8;
|
|
}
|
|
/// @}
|
|
|
|
/// \name Members
|
|
/// @{
|
|
private:
|
|
T t;
|
|
T1 t1;
|
|
T2 t2;
|
|
T3 t3;
|
|
T4 t4;
|
|
T5 t5;
|
|
T6 t6;
|
|
T7 t7;
|
|
T8 t8;
|
|
/// @}
|
|
|
|
/// \name Not to be implemented
|
|
/// @{
|
|
private:
|
|
any_caster(class_type const& rhs);
|
|
class_type& operator =(class_type const& rhs);
|
|
/// @}
|
|
};
|
|
|
|
////////////////////////////////////////////////////////////////////////////
|
|
// Unit-testing
|
|
|
|
#ifdef STLSOFT_UNITTEST
|
|
# include "./unittest/any_caster_unittest_.h"
|
|
#endif /* STLSOFT_UNITTEST */
|
|
|
|
/* ////////////////////////////////////////////////////////////////////// */
|
|
|
|
#ifndef _STLSOFT_NO_NAMESPACE
|
|
} // namespace stlsoft
|
|
#endif /* _STLSOFT_NO_NAMESPACE */
|
|
|
|
/* ////////////////////////////////////////////////////////////////////// */
|
|
|
|
#endif /* !STLSOFT_INCL_STLSOFT_CONVERSION_HPP_ANY_CAST */
|
|
|
|
/* ///////////////////////////// end of file //////////////////////////// */
|