ceph/src/boost/libs/test/include/boost/test/data/monomorphic/collection.hpp

   1 //  (C) Copyright Gennadiy Rozental 2001.
   2 //  Distributed under the Boost Software License, Version 1.0.
   3 //  (See accompanying file LICENSE_1_0.txt or copy at
   4 //  http://www.boost.org/LICENSE_1_0.txt)
   5
   6 //  See http://www.boost.org/libs/test for the library home page.
   7 //
   8 ///@file
   9 ///Defines monomorphic dataset based on forward iterable sequence
  10 // ***************************************************************************
  11
  12 #ifndef BOOST_TEST_DATA_MONOMORPHIC_COLLECTION_HPP_102211GER
  13 #define BOOST_TEST_DATA_MONOMORPHIC_COLLECTION_HPP_102211GER
  14
  15 // Boost.Test
  16 #include <boost/test/data/config.hpp>
  17 #include <boost/test/data/monomorphic/fwd.hpp>
  18
  19 #include <boost/test/detail/suppress_warnings.hpp>
  20
  21 //____________________________________________________________________________//
  22
  23 namespace boost {
  24 namespace unit_test {
  25 namespace data {
  26 namespace monomorphic {
  27
  28 // ************************************************************************** //
  29 // **************                  collection                  ************** //
  30 // ************************************************************************** //
  31
  32
  33 //!@brief Dataset from a forward iterable container (collection)
  34 //!
  35 //! This dataset is applicable to any container implementing a forward iterator. Note that
  36 //! container with one element will be considered as singletons.
  37 //! This dataset is constructible with the @ref boost::unit_test::data::make function.
  38 template<typename C>
  39 class collection {
  40     typedef typename boost::decay<C>::type col_type;
  41 public:
  42     typedef typename col_type::value_type sample;
  43
  44     enum { arity = 1 };
  45
  46     typedef typename col_type::const_iterator iterator;
  47
  48     //! Constructor consumed a temporary collection or stores a reference
  49     explicit        collection( C&& col ) : m_col( std::forward<C>(col) ) {}
  50
  51     //! Move constructor
  52     collection( collection&& c ) : m_col( std::forward<C>( c.m_col ) ) {}
  53
  54     //! Returns the underlying collection
  55     C const&        col() const             { return m_col; }
  56
  57     //! dataset interface
  58     data::size_t    size() const            { return m_col.size(); }
  59     iterator        begin() const           { return m_col.begin(); }
  60
  61 private:
  62     // Data members
  63     C               m_col;
  64 };
  65
  66 //____________________________________________________________________________//
  67
  68 //! A collection from a forward iterable container is a dataset.
  69 template<typename C>
  70 struct is_dataset<collection<C>> : mpl::true_ {};
  71
  72 } // namespace monomorphic
  73
  74 //____________________________________________________________________________//
  75
  76 //! @overload boost::unit_test::data::make()
  77 template<typename C>
  78 inline typename std::enable_if<is_forward_iterable<C>::value,monomorphic::collection<C>>::type
  79 make( C&& c )
  80 {
  81     return monomorphic::collection<C>( std::forward<C>(c) );
  82 }
  83
  84 } // namespace data
  85 } // namespace unit_test
  86 } // namespace boost
  87
  88 #include <boost/test/detail/enable_warnings.hpp>
  89
  90 #endif // BOOST_TEST_DATA_MONOMORPHIC_COLLECTION_HPP_102211GER
  91