data/monomorphic/collection.hpp

0001 //  (C) Copyright Gennadiy Rozental 2001.
0002 //  Distributed under the Boost Software License, Version 1.0.
0003 //  (See accompanying file LICENSE_1_0.txt or copy at
0004 //  http://www.boost.org/LICENSE_1_0.txt)
0005
0006 //  See http://www.boost.org/libs/test for the library home page.
0007 //
0008 ///@file
0009 ///Defines monomorphic dataset based on forward iterable sequence
0010 // ***************************************************************************
0011
0012 #ifndef BOOST_TEST_DATA_MONOMORPHIC_COLLECTION_HPP_102211GER
0013 #define BOOST_TEST_DATA_MONOMORPHIC_COLLECTION_HPP_102211GER
0014
0015 // Boost.Test
0016 #include <boost/test/data/config.hpp>
0017 #include <boost/test/data/monomorphic/fwd.hpp>
0018
0019 #include <boost/test/detail/suppress_warnings.hpp>
0020
0021 //____________________________________________________________________________//
0022
0023 namespace boost {
0024 namespace unit_test {
0025 namespace data {
0026 namespace monomorphic {
0027
0028 // ************************************************************************** //
0029 // **************                  collection                  ************** //
0030 // ************************************************************************** //
0031
0032
0033 //!@brief Dataset from a forward iterable container (collection)
0034 //!
0035 //! This dataset is applicable to any container implementing a forward iterator. Note that
0036 //! container with one element will be considered as singletons.
0037 //! This dataset is constructible with the @ref boost::unit_test::data::make function.
0038 template<typename C>
0039 class collection {
0040     typedef typename boost::decay<C>::type col_type;
0041 public:
0042     typedef typename col_type::value_type sample;
0043
0044     static const int arity = 1;
0045
0046     typedef typename col_type::const_iterator iterator;
0047
0048     //! Constructor consumed a temporary collection or stores a reference
0049     explicit        collection( C&& col ) : m_col( std::forward<C>(col) ) {}
0050
0051     //! Move constructor
0052     collection( collection&& c ) : m_col( std::forward<C>( c.m_col ) ) {}
0053
0054     //! Returns the underlying collection
0055     C const&        col() const             { return m_col; }
0056
0057     //! dataset interface
0058     data::size_t    size() const            { return m_col.size(); }
0059     iterator        begin() const           { return m_col.begin(); }
0060
0061 private:
0062     // Data members
0063     C               m_col;
0064 };
0065
0066 //____________________________________________________________________________//
0067
0068 //! A collection from a forward iterable container is a dataset.
0069 template<typename C>
0070 struct is_dataset<collection<C>> : mpl::true_ {};
0071
0072 } // namespace monomorphic
0073
0074 //____________________________________________________________________________//
0075
0076 //! @overload boost::unit_test::data::make()
0077 template<typename C>
0078 inline typename std::enable_if<is_container_forward_iterable<C>::value,monomorphic::collection<C>>::type
0079 make( C&& c )
0080 {
0081     return monomorphic::collection<C>( std::forward<C>(c) );
0082 }
0083
0084 } // namespace data
0085 } // namespace unit_test
0086 } // namespace boost
0087
0088 #include <boost/test/detail/enable_warnings.hpp>
0089
0090 #endif // BOOST_TEST_DATA_MONOMORPHIC_COLLECTION_HPP_102211GER
0091