WSJT-X/boost/libs/iterator/test/pointee.cpp

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// 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;
}