118 lines
3.9 KiB
C++
118 lines
3.9 KiB
C++
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// (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 for_each_sample algorithm
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// ***************************************************************************
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#ifndef BOOST_TEST_DATA_FOR_EACH_SAMPLE_HPP_102211GER
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#define BOOST_TEST_DATA_FOR_EACH_SAMPLE_HPP_102211GER
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// Boost.Test
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#include <boost/test/data/config.hpp>
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#include <boost/test/data/size.hpp>
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#include <boost/test/data/index_sequence.hpp>
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#include <boost/test/data/monomorphic/sample_merge.hpp>
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#include <boost/test/data/monomorphic/fwd.hpp>
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// STL
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#include <tuple>
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#include <boost/test/detail/suppress_warnings.hpp>
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// needed for std::min
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#include <algorithm>
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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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// ************************************************************************** //
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// ************** data::invoke_action ************** //
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// ************************************************************************** //
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template<typename Action, typename T>
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inline void
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invoke_action( Action const& action, T && arg, std::false_type /* is_tuple */ )
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{
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action( std::forward<T>(arg) );
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}
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//____________________________________________________________________________//
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template<typename Action, typename T, std::size_t ...I>
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inline void
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invoke_action_impl( Action const& action,
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T && args,
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index_sequence<I...> const& )
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{
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action( std::get<I>(std::forward<T>(args))... );
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}
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//____________________________________________________________________________//
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template<typename Action, typename T>
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inline void
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invoke_action( Action const& action, T&& args, std::true_type /* is_tuple */ )
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{
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invoke_action_impl( action,
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std::forward<T>(args),
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typename make_index_sequence< 0,
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std::tuple_size<typename std::decay<T>::type>::value
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>::type{} );
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}
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//____________________________________________________________________________//
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// ************************************************************************** //
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// ************** for_each_sample ************** //
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// ************************************************************************** //
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template<typename DataSet, typename Action>
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inline typename std::enable_if<monomorphic::is_dataset<DataSet>::value,void>::type
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for_each_sample( DataSet const & samples,
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Action const& act,
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data::size_t number_of_samples = BOOST_TEST_DS_INFINITE_SIZE )
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{
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data::size_t size = (std::min)( samples.size(), number_of_samples );
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BOOST_TEST_DS_ASSERT( !size.is_inf(), "Dataset has infinite size. Please specify the number of samples" );
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auto it = samples.begin();
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while( size-- > 0 ) {
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invoke_action( act,
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*it,
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typename monomorphic::ds_detail::is_tuple<decltype(*it)>::type());
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++it;
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}
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}
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//____________________________________________________________________________//
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template<typename DataSet, typename Action>
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inline typename std::enable_if<!monomorphic::is_dataset<DataSet>::value,void>::type
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for_each_sample( DataSet && samples,
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Action const& act,
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data::size_t number_of_samples = BOOST_TEST_DS_INFINITE_SIZE )
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{
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data::for_each_sample( data::make( std::forward<DataSet>(samples) ),
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act,
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number_of_samples );
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}
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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_DATA_FOR_EACH_SAMPLE_HPP_102211GER
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