186 lines
6.1 KiB
C++
Executable File
186 lines
6.1 KiB
C++
Executable File
// (C) Copyright Gennadiy Rozental 2001.
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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/libs/test for the library home page.
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//
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///@file
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/// Defines monomorphic dataset n+m dimentional *. Samples in this
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/// dataset is grid of elements in DataSet1 and DataSet2. There will be total
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/// |DataSet1| * |DataSet2| samples
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// ***************************************************************************
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#ifndef BOOST_TEST_DATA_MONOMORPHIC_GRID_HPP_101512GER
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#define BOOST_TEST_DATA_MONOMORPHIC_GRID_HPP_101512GER
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// Boost.Test
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#include <boost/test/data/config.hpp>
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#if !defined(BOOST_TEST_NO_GRID_COMPOSITION_AVAILABLE) || defined(BOOST_TEST_DOXYGEN_DOC__)
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#include <boost/test/data/monomorphic/fwd.hpp>
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#include <boost/test/data/monomorphic/sample_merge.hpp>
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#include <boost/core/enable_if.hpp>
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#include <boost/mpl/identity.hpp>
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#include <boost/test/detail/suppress_warnings.hpp>
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//____________________________________________________________________________//
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namespace boost {
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namespace unit_test {
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namespace data {
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namespace monomorphic {
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// ************************************************************************** //
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// ************** grid ************** //
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// ************************************************************************** //
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//! Implements the dataset resulting from a cartesian product/grid operation on datasets.
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//!
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//! The arity of the resulting dataset is the sum of the arity of its operands.
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template<typename DataSet1, typename DataSet2>
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class grid {
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typedef typename boost::decay<DataSet1>::type dataset1_decay;
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typedef typename boost::decay<DataSet2>::type dataset2_decay;
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typedef typename dataset1_decay::iterator dataset1_iter;
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typedef typename dataset2_decay::iterator dataset2_iter;
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public:
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struct iterator {
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// Constructor
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explicit iterator( dataset1_iter iter1, DataSet2 const& ds2 )
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: m_iter1( std::move( iter1 ) )
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, m_iter2( std::move( ds2.begin() ) )
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, m_ds2( &ds2 )
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, m_ds2_pos( 0 )
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{}
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using iterator_sample = decltype(
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sample_merge( *std::declval<dataset1_iter>(),
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*std::declval<dataset2_iter>()) );
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// forward iterator interface
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auto operator*() const -> iterator_sample {
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return sample_merge( *m_iter1, *m_iter2 );
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}
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void operator++()
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{
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++m_ds2_pos;
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if( m_ds2_pos != m_ds2->size() )
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++m_iter2;
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else {
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m_ds2_pos = 0;
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++m_iter1;
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m_iter2 = std::move( m_ds2->begin() );
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}
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}
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private:
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// Data members
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dataset1_iter m_iter1;
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dataset2_iter m_iter2;
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dataset2_decay const* m_ds2;
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data::size_t m_ds2_pos;
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};
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public:
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static const int arity = boost::decay<DataSet1>::type::arity + boost::decay<DataSet2>::type::arity;
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//! Constructor
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grid( DataSet1&& ds1, DataSet2&& ds2 )
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: m_ds1( std::forward<DataSet1>( ds1 ) )
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, m_ds2( std::forward<DataSet2>( ds2 ) )
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{}
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//! Move constructor
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grid( grid&& j )
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: m_ds1( std::forward<DataSet1>( j.m_ds1 ) )
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, m_ds2( std::forward<DataSet2>( j.m_ds2 ) )
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{}
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// dataset interface
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data::size_t size() const {
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BOOST_TEST_DS_ASSERT( !m_ds1.size().is_inf() && !m_ds2.size().is_inf(), "Grid axes can't have infinite size" );
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return m_ds1.size() * m_ds2.size();
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}
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iterator begin() const { return iterator( m_ds1.begin(), m_ds2 ); }
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private:
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// Data members
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DataSet1 m_ds1;
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DataSet2 m_ds2;
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};
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//____________________________________________________________________________//
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// A grid dataset is a dataset
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template<typename DataSet1, typename DataSet2>
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struct is_dataset<grid<DataSet1,DataSet2>> : mpl::true_ {};
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//____________________________________________________________________________//
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namespace result_of {
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/// Result type of the grid operation on dataset.
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template<typename DS1Gen, typename DS2Gen>
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struct grid {
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typedef monomorphic::grid<typename DS1Gen::type,typename DS2Gen::type> type;
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};
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} // namespace result_of
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//____________________________________________________________________________//
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//! Grid operation
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template<typename DataSet1, typename DataSet2>
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inline typename boost::lazy_enable_if_c<is_dataset<DataSet1>::value && is_dataset<DataSet2>::value,
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result_of::grid<mpl::identity<DataSet1>,mpl::identity<DataSet2>>
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>::type
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operator*( DataSet1&& ds1, DataSet2&& ds2 )
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{
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return grid<DataSet1,DataSet2>( std::forward<DataSet1>( ds1 ), std::forward<DataSet2>( ds2 ) );
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}
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//____________________________________________________________________________//
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//! @overload boost::unit_test::data::operator*
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template<typename DataSet1, typename DataSet2>
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inline typename boost::lazy_enable_if_c<is_dataset<DataSet1>::value && !is_dataset<DataSet2>::value,
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result_of::grid<mpl::identity<DataSet1>,data::result_of::make<DataSet2>>
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>::type
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operator*( DataSet1&& ds1, DataSet2&& ds2 )
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{
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return std::forward<DataSet1>(ds1) * data::make(std::forward<DataSet2>(ds2));
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}
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//____________________________________________________________________________//
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//! @overload boost::unit_test::data::operator*
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template<typename DataSet1, typename DataSet2>
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inline typename boost::lazy_enable_if_c<!is_dataset<DataSet1>::value && is_dataset<DataSet2>::value,
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result_of::grid<data::result_of::make<DataSet1>,mpl::identity<DataSet2>>
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>::type
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operator*( DataSet1&& ds1, DataSet2&& ds2 )
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{
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return data::make(std::forward<DataSet1>(ds1)) * std::forward<DataSet2>(ds2);
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}
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} // namespace monomorphic
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} // namespace data
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} // namespace unit_test
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} // namespace boost
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#include <boost/test/detail/enable_warnings.hpp>
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#endif // BOOST_TEST_NO_GRID_COMPOSITION_AVAILABLE
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#endif // BOOST_TEST_DATA_MONOMORPHIC_GRID_HPP_101512GER
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