Ticket #1237: test.cpp

/* Test program to test resize of symmetric matrix, adapted from example
 * provided at http://www.boost.org/libs/numeric/ublas/doc/symmetric.htm 
 *
 * author: Tinne De Laet (first dot last at mech dot kuleuven dot be)
 */


#include <boost/numeric/ublas/symmetric.hpp>
#include <boost/numeric/ublas/io.hpp>

int main () {
    using namespace boost::numeric::ublas;

    // Check resize for matrix
    matrix<double> m (3, 3);
    for (unsigned i = 0; i < m.size1 (); ++ i)
        for (unsigned j = 0; j < m.size2 (); ++ j)
            m (i, j) = 3 * i + j;
    std::cout << "original m" << m << "\n" << std::endl;

    std::cout << "Resize m to bigger size" << std::endl;
    m.resize(m.size1 () +2, m.size2 () +2,true);
    std::cout << "m resized: " << m << " \n" << std::endl;

    std::cout << "Resize m to smaller size" << std::endl;
    m.resize(m.size1 () -1, m.size2 () -1,true);
    std::cout << "m resized: " << m << " \n" << std::endl;

    // Check resize for symmetric matrix
    symmetric_matrix<double, lower> ml (3, 3);

    for (unsigned i = 0; i < ml.size1 (); ++ i)
        for (unsigned j = 0; j <= i; ++ j)
            ml (i, j) = 3 * i + j;
    std::cout << "original ml" <<  ml << " \n" << std::endl;

    symmetric_matrix<double, upper> mu (3, 3);
    for (unsigned i = 0; i < mu.size1 (); ++ i)
        for (unsigned j = i; j < mu.size2 (); ++ j)
            mu (i, j) = 3 * i + j;
    std::cout << "original mu" << mu << " \n" << std::endl;

    std::cout << "Resize ml to bigger size" << std::endl;
    ml.resize(ml.size1 () +2,true);
    std::cout << "ml resized: " << m << " \n" << std::endl;

    std::cout << "Resize ml to smaller size" << std::endl;
    ml.resize(ml.size1 () -1,true);
    std::cout << "ml resized: " << m << " \n" << std::endl;

    std::cout << "Resize mu to smaller size" << std::endl;
    mu.resize(mu.size1 () -1,true);
    std::cout << "mu resized: " << m << " \n" << std::endl;

    std::cout << "Resize mu to bigger size" << std::endl;
    mu.resize(mu.size1 () +1,true);
    std::cout << "mu resized: " << m << " \n" << std::endl;
}