forked from boostorg/algorithm
84 lines
2.3 KiB
C++
84 lines
2.3 KiB
C++
// Boost string_algo library concept.hpp header file ---------------------------//
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// Copyright Pavol Droba 2002-2003.
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/ for updates, documentation, and revision history.
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#ifndef BOOST_STRING_CONCEPT_HPP
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#define BOOST_STRING_CONCEPT_HPP
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#include <boost/concept_check.hpp>
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#include <boost/range/iterator_range_core.hpp>
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#include <boost/range/begin.hpp>
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#include <boost/range/end.hpp>
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/*! \file
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Defines concepts used in string_algo library
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*/
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namespace boost {
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namespace algorithm {
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//! Finder concept
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/*!
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Defines the Finder concept. Finder is a functor which selects
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an arbitrary part of a string. Search is performed on
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the range specified by starting and ending iterators.
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Result of the find operation must be convertible to iterator_range.
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*/
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template<typename FinderT, typename IteratorT>
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struct FinderConcept
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{
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private:
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typedef iterator_range<IteratorT> range;
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public:
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void constraints()
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{
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// Operation
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r=(*pF)(i,i);
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}
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private:
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range r;
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IteratorT i;
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FinderT* pF;
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}; // Finder_concept
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//! Formatter concept
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/*!
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Defines the Formatter concept. Formatter is a functor, which
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takes a result from a finder operation and transforms it
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in a specific way.
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Result must be a container supported by container_traits,
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or a reference to it.
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*/
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template<typename FormatterT, typename FinderT, typename IteratorT>
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struct FormatterConcept
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{
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public:
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void constraints()
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{
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// Operation
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::boost::begin((*pFo)( (*pF)(i,i) ));
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::boost::end((*pFo)( (*pF)(i,i) ));
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}
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private:
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IteratorT i;
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FinderT* pF;
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FormatterT *pFo;
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}; // FormatterConcept;
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} // namespace algorithm
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} // namespace boost
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#endif // BOOST_STRING_CONCEPT_HPP
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