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// (C) Copyright Gennadiy Rozental 2001.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// See http://www.boost.org/libs/test for the library home page.
//
/// @file
/// Defines for_each_sample algorithm
// ***************************************************************************
#ifndef BOOST_TEST_DATA_FOR_EACH_SAMPLE_HPP_102211GER
#define BOOST_TEST_DATA_FOR_EACH_SAMPLE_HPP_102211GER
// Boost.Test
#include <boost/test/data/config.hpp>
#include <boost/test/data/size.hpp>
#include <boost/test/data/index_sequence.hpp>
#include <boost/test/data/monomorphic/sample_merge.hpp>
#include <boost/test/data/monomorphic/fwd.hpp>
// STL
#include <tuple>
#include <boost/test/detail/suppress_warnings.hpp>
// needed for std::min
#include <algorithm>
//____________________________________________________________________________//
namespace boost {
namespace unit_test {
namespace data {
// ************************************************************************** //
// ************** data::invoke_action ************** //
// ************************************************************************** //
template<typename Action, typename T>
inline void
invoke_action( Action const& action, T && arg, std::false_type /* is_tuple */ )
{
action( std::forward<T>(arg) );
}
//____________________________________________________________________________//
template<typename Action, typename T, std::size_t ...I>
inline void
invoke_action_impl( Action const& action,
T && args,
index_sequence<I...> const& )
{
action( std::get<I>(std::forward<T>(args))... );
}
//____________________________________________________________________________//
template<typename Action, typename T>
inline void
invoke_action( Action const& action, T&& args, std::true_type /* is_tuple */ )
{
invoke_action_impl( action,
std::forward<T>(args),
typename make_index_sequence< 0,
std::tuple_size<typename std::decay<T>::type>::value
>::type{} );
}
//____________________________________________________________________________//
// ************************************************************************** //
// ************** for_each_sample ************** //
// ************************************************************************** //
template<typename DataSet, typename Action>
inline typename std::enable_if<monomorphic::is_dataset<DataSet>::value,void>::type
for_each_sample( DataSet && samples,
Action const& act,
data::size_t number_of_samples = BOOST_TEST_DS_INFINITE_SIZE )
{
data::size_t size = (std::min)( samples.size(), number_of_samples );
BOOST_TEST_DS_ASSERT( !size.is_inf(), "Dataset has infinite size. Please specify the number of samples" );
auto it = samples.begin();
while( size-- > 0 ) {
invoke_action( act,
*it,
typename monomorphic::ds_detail::is_tuple<decltype(*it)>::type());
++it;
}
}
//____________________________________________________________________________//
template<typename DataSet, typename Action>
inline typename std::enable_if<!monomorphic::is_dataset<DataSet>::value,void>::type
for_each_sample( DataSet && samples,
Action const& act,
data::size_t number_of_samples = BOOST_TEST_DS_INFINITE_SIZE )
{
data::for_each_sample( data::make( std::forward<DataSet>(samples) ),
act,
number_of_samples );
}
} // namespace data
} // namespace unit_test
} // namespace boost
#include <boost/test/detail/enable_warnings.hpp>
#endif // BOOST_TEST_DATA_FOR_EACH_SAMPLE_HPP_102211GER
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