mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-20 11:01:54 -05:00
72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
|
// Copyright David Abrahams 2004. Use, modification and distribution is
|
||
|
|
// subject to the Boost Software License, Version 1.0. (See accompanying
|
||
|
|
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
||
|
|
|
||
|
|
#include <boost/pointee.hpp>
|
||
|
|
#include <boost/type_traits/add_const.hpp>
|
||
|
|
#include "static_assert_same.hpp"
|
||
|
|
#include <memory>
|
||
|
|
#include <list>
|
||
|
|
|
||
|
|
template <class T, class Ref>
|
||
|
|
struct proxy_ptr
|
||
|
|
{
|
||
|
|
typedef T element_type;
|
||
|
|
struct proxy
|
||
|
|
{
|
||
|
|
operator Ref() const;
|
||
|
|
};
|
||
|
|
proxy operator*() const;
|
||
|
|
};
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
struct proxy_ref_ptr : proxy_ptr<T,T&>
|
||
|
|
{
|
||
|
|
};
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
struct proxy_value_ptr : proxy_ptr<T,T>
|
||
|
|
{
|
||
|
|
typedef typename boost::add_const<T>::type element_type;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct X {
|
||
|
|
template <class T> X(T const&);
|
||
|
|
template <class T> operator T&() const;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
int main()
|
||
|
|
{
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<proxy_ref_ptr<int> >::type, int);
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<proxy_ref_ptr<X> >::type, X);
|
||
|
|
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<proxy_ref_ptr<int const> >::type, int const);
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<proxy_ref_ptr<X const> >::type, X const);
|
||
|
|
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<proxy_value_ptr<int> >::type, int const);
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<proxy_value_ptr<X> >::type, X const);
|
||
|
|
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<proxy_value_ptr<int const> >::type, int const);
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<proxy_value_ptr<X const> >::type, X const);
|
||
|
|
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<int*>::type, int);
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<int const*>::type, int const);
|
||
|
|
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<X*>::type, X);
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<X const*>::type, X const);
|
||
|
|
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<std::auto_ptr<int> >::type, int);
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<std::auto_ptr<X> >::type, X);
|
||
|
|
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<std::auto_ptr<int const> >::type, int const);
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<std::auto_ptr<X const> >::type, X const);
|
||
|
|
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<std::list<int>::iterator >::type, int);
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<std::list<X>::iterator >::type, X);
|
||
|
|
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<std::list<int>::const_iterator >::type, int const);
|
||
|
|
STATIC_ASSERT_SAME(boost::pointee<std::list<X>::const_iterator >::type, X const);
|
||
|
|
return 0;
|
||
|
|
}
|