boost/beast/_experimental/unit_test/detail/const_container.hpp
//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under 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)
//
// Official repository: https://github.com/boostorg/beast
//
#ifndef BOOST_BEAST_UNIT_TEST_DETAIL_CONST_CONTAINER_HPP
#define BOOST_BEAST_UNIT_TEST_DETAIL_CONST_CONTAINER_HPP
namespace boost {
namespace beast {
namespace unit_test {
namespace detail {
/** Adapter to constrain a container interface.
The interface allows for limited read only operations. Derived classes
provide additional behavior.
*/
template<class Container>
class const_container
{
private:
using cont_type = Container;
cont_type m_cont;
protected:
cont_type& cont()
{
return m_cont;
}
cont_type const& cont() const
{
return m_cont;
}
public:
using value_type = typename cont_type::value_type;
using size_type = typename cont_type::size_type;
using difference_type = typename cont_type::difference_type;
using iterator = typename cont_type::const_iterator;
using const_iterator = typename cont_type::const_iterator;
/** Returns `true` if the container is empty. */
bool
empty() const
{
return m_cont.empty();
}
/** Returns the number of items in the container. */
size_type
size() const
{
return m_cont.size();
}
/** Returns forward iterators for traversal. */
/** @{ */
const_iterator
begin() const
{
return m_cont.cbegin();
}
const_iterator
cbegin() const
{
return m_cont.cbegin();
}
const_iterator
end() const
{
return m_cont.cend();
}
const_iterator
cend() const
{
return m_cont.cend();
}
/** @} */
};
} // detail
} // unit_test
} // beast
} // boost
#endif