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- // Copyright (c) 2011 David Bellot
- //
- // 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)
- #ifndef BOOST_UBLAS_NO_ELEMENT_PROXIES
- # define BOOST_UBLAS_NO_ELEMENT_PROXIES
- #endif
- #include <boost/numeric/ublas/assignment.hpp>
- #include <boost/numeric/ublas/matrix.hpp>
- #include <boost/numeric/ublas/matrix_sparse.hpp>
- #include <boost/numeric/ublas/matrix_expression.hpp>
- #include <boost/numeric/ublas/io.hpp>
- #include "common/testhelper.hpp"
- #include "utils.hpp"
- using std::cout;
- using std::endl;
- const double TOL = 1e-15;
- template<typename T>
- bool check_sortedness(const boost::numeric::ublas::coordinate_matrix<T>& matrix) {
- bool result = true;
- typedef boost::numeric::ublas::coordinate_matrix<T> matrix_type;
- typename matrix_type::index_array_type i1 = matrix.index1_data();
- typename matrix_type::index_array_type i2 = matrix.index2_data();
- typename matrix_type::array_size_type size = matrix.filled();
- for (typename matrix_type::array_size_type i = 0; i + 1 < size && result; ++ i) {
- result &= ( (i1[i] < i1[i + 1]) ||
- ((i1[i] == i1[i]) &&
- (i2[i] < i2[i + 1])) );
- }
- return result;
- }
- void print_entries(size_t size_x, size_t size_y,
- const std::vector<std::pair<size_t, size_t> >& entries)
- {
- std::cerr << "Error - Size:" << size_x << " x " << size_y << ". Entries: ";
- for (size_t i = 0; i < entries.size(); ++ i) {
- std::cerr << entries[i].first << ", " << entries[i].second << "; ";
- }
- std::cerr << "\n";
- }
- BOOST_UBLAS_TEST_DEF( test_coordinate_matrix_inplace_merge_random )
- {
- const size_t max_repeats = 100;
- const size_t max_size = 100;
- const size_t dim_var = 10;
- const size_t nr_entries = 10;
- for (size_t repeats = 1; repeats < max_repeats; ++repeats ) {
- for (size_t size = 1; size < max_size; size += 5) {
- size_t size_x = size + rand() % dim_var;
- size_t size_y = size + rand() % dim_var;
- boost::numeric::ublas::coordinate_matrix<double> matrix_coord(size_x, size_y);
- boost::numeric::ublas::matrix<double> matrix_dense(size_x, size_y, 0);
- matrix_coord.sort();
- std::vector<std::pair<size_t, size_t> > entries;
- for (size_t entry = 0; entry < nr_entries; ++ entry) {
- int x = rand() % size_x;
- int y = rand() % size_y;
- entries.push_back(std::make_pair(x, y));
- matrix_coord.append_element(x, y, 1);
- matrix_dense(x, y) += 1;
- }
- matrix_coord.sort();
- {
- bool sorted = check_sortedness(matrix_coord);
- bool identical = compare_distance(matrix_coord, matrix_dense, TOL);
- if (!(sorted && identical)) {
- print_entries(size_x, size_y, entries);
- }
- BOOST_UBLAS_TEST_CHECK( check_sortedness(matrix_coord) );
- BOOST_UBLAS_TEST_CHECK( compare_distance(matrix_coord, matrix_dense, TOL) );
- }
- for (size_t entry = 0; entry < nr_entries; ++ entry) {
- int x = rand() % size_x;
- int y = rand() % size_y;
- entries.push_back(std::make_pair(x, y));
- matrix_coord(x, y) += 1;
- matrix_dense(x, y) += 1;
- matrix_coord.sort();
- }
- {
- bool sorted = check_sortedness(matrix_coord);
- bool identical = compare_distance(matrix_coord, matrix_dense, TOL);
- if (!(sorted && identical)) {
- print_entries(size_x, size_y, entries);
- }
- BOOST_UBLAS_TEST_CHECK( sorted );
- BOOST_UBLAS_TEST_CHECK( identical );
- }
- }
- }
- }
- int main()
- {
- BOOST_UBLAS_TEST_BEGIN();
- BOOST_UBLAS_TEST_DO( test_coordinate_matrix_inplace_merge_random );
- BOOST_UBLAS_TEST_END();
- }
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