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// (C) 2002, Fernando Luis Cacciola Carballal.
//
// This material is provided "as is", with absolutely no warranty expressed
// or implied. Any use is at your own risk.
//
// Permission to use or copy this software for any purpose is hereby granted
// without fee, provided the above notices are retained on all copies.
// Permission to modify the code and to distribute modified code is granted,
// provided the above notices are retained, and a notice that the code was
// modified is included with the above copyright notice.
//
// 21 Ago 2002 (Created) Fernando Cacciola
//
#ifndef BOOST_UTILITY_VALUE_INIT_21AGO2002_HPP
#define BOOST_UTILITY_VALUE_INIT_21AGO2002_HPP
#include "boost/detail/select_type.hpp"
#include "boost/type_traits/cv_traits.hpp"
namespace boost {
namespace vinit_detail {
template<class T>
class const_T_base
{
protected :
const_T_base() : x() {}
T x ;
} ;
template<class T>
struct non_const_T_base
{
protected :
non_const_T_base() : x() {}
mutable T x ;
} ;
template<class T>
struct select_base
{
typedef typename
detail::if_true< ::boost::is_const<T>::value >
::template then< const_T_base<T>, non_const_T_base<T> >::type type ;
} ;
} // namespace vinit_detail
template<class T>
class value_initialized : private vinit_detail::select_base<T>::type
{
public :
value_initialized() {}
operator T&() const { return this->x ; }
T& data() const { return this->x ; }
} ;
template<class T>
T const& get ( value_initialized<T> const& x )
{
return x.data() ;
}
template<class T>
T& get ( value_initialized<T>& x )
{
return x.data() ;
}
} // namespace boost
#endif
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Mr. Shah is a reclusive C++/C# developer lurking somewhere in the depths of the city of London. He learnt physics at Kings' College London and obtained a Master in Science there. Having earned an MCAD, he teeters on the brink of transitioning from C++ to C#, unsure of which language to jump to. Fortunately, he also knows how to use .NET interop to merge code between the two languages (which means he won't have to make the choice anytime soon).
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.