third_party/boost/regex/test/concepts/range_concept_check.cpp

/*
*
* Copyright (c) 2015
* John Maddock
*
* Use, modification and distribution are 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/regex.hpp>
#include <boost/range/concepts.hpp>

template <class T>
void use_val(const T&){}

template <class T>
void check()
{
   BOOST_CONCEPT_ASSERT((boost::ForwardRangeConcept<T>));
   BOOST_CONCEPT_ASSERT((boost_concepts::ReadableIteratorConcept<typename boost::range_iterator<T>::type>));
   BOOST_CONCEPT_ASSERT((boost_concepts::RandomAccessTraversalConcept<typename boost::range_iterator<T>::type>));

#ifndef BOOST_NO_CXX11_RANGE_BASED_FOR
   const T val;
   for(auto item : val)
   {
      use_val(item);
   }
#endif
}

int main()
{
   check<boost::smatch>();
   check<boost::cmatch>();

   check <boost::sub_match<const char*> >();
   return 0;
}