ceph/src/boost/libs/range/include/boost/range/algorithm_ext/push_front.hpp

   1 // Boost.Range library
   2 //
   3 //  Copyright Neil Groves 2009. Use, modification and
   4 //  distribution is subject to the Boost Software License, Version
   5 //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
   6 //  http://www.boost.org/LICENSE_1_0.txt)
   7 //
   8 // For more information, see http://www.boost.org/libs/range/
   9 //
  10 #ifndef BOOST_RANGE_ALGORITHM_EXT_PUSH_FRONT_HPP_INCLUDED
  11 #define BOOST_RANGE_ALGORITHM_EXT_PUSH_FRONT_HPP_INCLUDED
  12
  13 #include <boost/range/config.hpp>
  14 #include <boost/range/concepts.hpp>
  15 #include <boost/range/difference_type.hpp>
  16 #include <boost/range/begin.hpp>
  17 #include <boost/range/end.hpp>
  18 #include <boost/range/detail/implementation_help.hpp>
  19 #include <boost/assert.hpp>
  20
  21 namespace boost
  22 {
  23     namespace range
  24     {
  25
  26 template< class Container, class Range >
  27 inline Container& push_front( Container& on, const Range& from )
  28 {
  29     BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<Container> ));
  30     BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const Range> ));
  31     BOOST_ASSERT_MSG(!range_detail::is_same_object(on, from),
  32         "cannot copy from a container to itself");
  33     on.insert( on.begin(), boost::begin(from), boost::end(from) );
  34     return on;
  35 }
  36
  37     } // namespace range
  38     using range::push_front;
  39 } // namespace boost
  40
  41 #endif // include guard