DataFrame/src/vectors_tester.cc at master · WYFHHH/DataFrame · GitHub

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#include <iostream>
#include <string>
#include <typeinfo>

#include "../include/HeteroVector.h"

using namespace hmdf;

// -----------------------------------------------------------------------------

struct my_visitor : HeteroVector::visitor_base<int, double, std::string>  {

    template<class T>
    void operator() (T &i)  { i += i; std::cout << "-- " << i << std::endl;}
};

// -----------------------------------------------------------------------------

struct sort_functor : HeteroVector::visitor_base<int, double, std::string>  {

    template<class T>
    bool operator() (const T &lhs, const T &rhs)  {

        return (lhs < rhs);
    }
};

// -----------------------------------------------------------------------------

struct change_functor : HeteroVector::visitor_base<int, double, std::string>  {

    template<typename T>
    void operator() (T &val)  {
        for (int i = 0; i < 10; ++i)
            val.push_back(
        typename std::remove_reference<decltype(val)>::type::value_type());
    }
};

// -----------------------------------------------------------------------------

int main(int argc, char *argv[]) {

    HeteroVector    hv;
    HeteroVector    hv2;
    HeteroVector    hv3;

    const std::vector<int>  &int_vec = hv.get_vector<int>();

    hv.push_back (3);
    hv.emplace_back<int> (4);
    hv.push_back (5);
    hv.emplace<int> (int_vec.begin (), 10);
    hv.push_back (1);
    hv.push_back (0);

    hv.push_back (4.25);
    hv.push_back (5.6845);
    hv.push_back (6.1112);
    hv.push_back (1.05);
    hv.push_back (0.456783);
    hv.push_back (0.123);

    hv.push_back (std::string("str_1"));
    hv.push_back (std::string("str_2"));
    hv.push_back (std::string("str_3"));
    hv.push_back (std::string("abc"));
    hv.push_back (std::string("fas"));

    {
        std::cout << "\n\nTesing HeteroVector View" << std::endl;

        HeteroView  d = hv.get_view<double>();

        std::cout << "d[3] must be 1.05: " << d.at<double>(3) << std::endl;

        HeteroView  s = hv.get_view<std::string>(1, 3);

        std::cout << "s[0] must be 'str_2': "
                  << s.at<std::string>(0) << std::endl;
        std::cout << "s size: " << s.size<std::string>() << std::endl;
        std::cout << "s.back() must be 'abc': "
                  << s.back<std::string>() << std::endl;

        std::cout << "\n\n";
    }

    hv2 = hv;
    hv3 = std::move(hv2);

    const std::vector<double>  &dbl_vec = hv.get_vector<double>();

    for (const auto &iter : int_vec)
        std::cout << iter << std::endl;

    std::cout << std::endl;
    for (const auto &iter : dbl_vec)
        std::cout << iter << std::endl;

    my_visitor  mv;

    std::cout << "Visiting ..." << std::endl;
    hv.visit(std::move(mv));

    sort_functor    sort_func;

    std::cout << "Sorting ..." << std::endl;
    hv.sort(std::move(sort_func));
    std::cout << "Visiting ..." << std::endl;
    hv.visit(std::move(mv));

    change_functor    change_func;

    std::cout << "Changing ..." << std::endl;
    hv.change(std::move(change_func));
    std::cout << "Visiting ..." << std::endl;
    hv.visit(std::move(mv));

    hv.resize(100, 5);
    hv.pop_back<int>();
    hv.empty<int>();
    hv.at<int>(5);
    hv.back<int>();
    hv.front<int>();

    {
        std::cout << "\n\nTesing VectorView" << std::endl;

        std::vector<int> vec { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
        VectorView<int>  vec_view;

        vec_view = vec;
        std::cout << "View size: " << vec.size() << " == "
                  << vec_view.size() << std::endl;
        std::cout << "View value 0: " << vec[0] << " == "
                  << vec_view[0] << std::endl;
        std::cout << "View value 5: " << vec[5] << " == "
                  << vec_view[5] << std::endl;
        std::cout << "View value 9: " << vec[9] << " == "
                  << vec_view[9] << std::endl;

        vec_view[5] = 100;
        std::cout << "View value 5 after change: " << vec[5] << " == "
                  << vec_view[5] << std::endl;

    }

    return (0);
}

// -----------------------------------------------------------------------------

// Local Variables:
// mode:C++
// tab-width:4
// c-basic-offset:4
// End: