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Library/boost/libs/multi_array/test/reverse_view.cpp
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19 дек 2024, 19:11
19 дек 2024, 19:11
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// Copyright 2002 The Trustees of Indiana University. // Use, modification and distribution is subject to 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) // Boost.MultiArray Library // Authors: Ronald Garcia // Jeremy Siek // Andrew Lumsdaine // See http://www.boost.org/libs/multi_array for documentation. // // reverse_view.cpp - a small test of creating a view with negative strides // #include <boost/multi_array.hpp> #include <boost/core/lightweight_test.hpp> #include <boost/array.hpp> int main() { using namespace boost; // One-dimensional array with views double data[] = { 1, 2, 3, 4 }; double rdata[] = { 4, 3, 2, 1 }; typedef multi_array< double, 1 > array; array A(extents[4]); A.assign(data,data+4); typedef array::index_range range; array::array_view<1>::type B = A[indices[range(3, -1, -1)]]; for(multi_array_types::size_type i = 0; i != B.size(); ++i) { BOOST_TEST(B[i] == rdata[i]); } return boost::report_errors(); }