qmcpack/external_codes/boost_multi/multi/test/flatted.cpp

67 lines
2.0 KiB
C++

// Copyright 2018-2023 Alfredo A. Correa
// Copyright 2024 Matt Borland
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/multi/array.hpp>
// Suppress warnings from boost.test
#if defined(__clang__)
# pragma clang diagnostic push
# pragma clang diagnostic ignored "-Wold-style-cast"
# pragma clang diagnostic ignored "-Wundef"
# pragma clang diagnostic ignored "-Wconversion"
# pragma clang diagnostic ignored "-Wsign-conversion"
# pragma clang diagnostic ignored "-Wfloat-equal"
#elif defined(__GNUC__)
# pragma GCC diagnostic push
# pragma GCC diagnostic ignored "-Wold-style-cast"
# pragma GCC diagnostic ignored "-Wundef"
# pragma GCC diagnostic ignored "-Wconversion"
# pragma GCC diagnostic ignored "-Wsign-conversion"
# pragma GCC diagnostic ignored "-Wfloat-equal"
#endif
#ifndef BOOST_TEST_MODULE
# define BOOST_TEST_MAIN
#endif
#include <boost/test/unit_test.hpp>
namespace multi = boost::multi;
BOOST_AUTO_TEST_CASE(array_flatted_3d) {
multi::array<double, 3> arr({13, 4, 5});
BOOST_REQUIRE( arr.size() == 13 );
// BOOST_REQUIRE( arr.rotated().is_flattable() );
{
auto&& arrRFU = arr.rotated().flatted().unrotated(); // TODO(correaa) remove flatted?
BOOST_REQUIRE( &arrRFU[11][7] == &arr[11][1][2] );
}
{
auto&& arrRFU = (arr.rotated()).flatted().unrotated();
BOOST_REQUIRE( &arrRFU[11][7] == &arr[11][7/5][7%5] );
}
}
BOOST_AUTO_TEST_CASE(array_flatted_3d_bis) {
multi::array<double, 3> const arr({13, 4, 5});
BOOST_REQUIRE( arr.size() == 13 );
// BOOST_REQUIRE( arr.is_flattable() );
BOOST_REQUIRE( arr.flatted().size() == 52 );
}
BOOST_AUTO_TEST_CASE(empty_array_3D_flatted) {
multi::array<double, 3> const arr;
// BOOST_REQUIRE( arr.is_flattable() );
BOOST_REQUIRE( arr.flatted().size() == 0 );
}
BOOST_AUTO_TEST_CASE(empty_array_2D_flatted) {
multi::array<double, 2> const arr;
// BOOST_REQUIRE( arr.is_flattable() );
BOOST_REQUIRE( arr.flatted().size() == 0 );
}