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100 lines
2.5 KiB
C++
100 lines
2.5 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of Beast: https://github.com/vinniefalco/Beast
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Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef BEAST_CONTAINER_CONST_CONTAINER_H_INCLUDED
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#define BEAST_CONTAINER_CONST_CONTAINER_H_INCLUDED
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namespace beast {
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/** Adapter to constrain a container interface.
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The interface allows for limited read only operations. Derived classes
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provide additional behavior.
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*/
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template <class Container>
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class const_container
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{
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private:
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typedef Container cont_type;
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cont_type m_cont;
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protected:
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cont_type& cont()
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{
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return m_cont;
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}
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cont_type const& cont() const
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{
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return m_cont;
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}
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public:
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typedef typename cont_type::value_type value_type;
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typedef typename cont_type::size_type size_type;
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typedef typename cont_type::difference_type difference_type;
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typedef typename cont_type::const_iterator iterator;
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typedef typename cont_type::const_iterator const_iterator;
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/** Returns `true` if the container is empty. */
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bool
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empty() const
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{
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return m_cont.empty();
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}
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/** Returns the number of items in the container. */
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size_type
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size() const
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{
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return m_cont.size();
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}
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/** Returns forward iterators for traversal. */
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/** @{ */
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const_iterator
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begin() const
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{
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return m_cont.cbegin();
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}
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const_iterator
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cbegin() const
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{
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return m_cont.cbegin();
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}
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const_iterator
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end() const
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{
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return m_cont.cend();
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}
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const_iterator
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cend() const
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{
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return m_cont.cend();
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}
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/** @} */
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};
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} // beast
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#endif
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