23-first_n_types.cpp

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#include <tpf_output.hpp>
 
namespace types = tpf::types;
 
tpf::sstream stream;
auto endl = tpf::endl;
 
void test_first_n_types_t()
{
    using types_t = types::type_list_t<int, short, double>;
 
    using t0 = types::first_n_types_t<0, int, short, double>;
    using t1 = types::first_n_types_t<1, int, short, double>;
    using t2 = types::first_n_types_t<2, int, short, double>;
    using t3 = types::first_n_types_t<3, int, short, double>;
    using t4 = types::first_n_types_t<4, int, short, double>;
 
    stream <<"t0 = " << Tpf_GetTypeName(t0) << endl;
    stream <<"t1 = " << Tpf_GetTypeName(t1) << endl;
    stream <<"t2 = " << Tpf_GetTypeName(t2) << endl;
    stream <<"t3 = " << Tpf_GetTypeName(t3) << endl;
    stream <<"t4 = " << Tpf_GetTypeName(t4) << endl;
}
 
void test_first_n_types_t2()
{
    using types_t = types::type_list_t<int, short, double>;
 
    using t0 = types::first_n_types_t<0, types_t>;
    using t1 = types::first_n_types_t<1, types_t>;
    using t2 = types::first_n_types_t<2, types_t>;
    using t3 = types::first_n_types_t<3, types_t>;
    using t4 = types::first_n_types_t<4, types_t>;
 
    stream <<"t0 = " << Tpf_GetTypeName(t0) << endl;
    stream <<"t1 = " << Tpf_GetTypeName(t1) << endl;
    stream <<"t2 = " << Tpf_GetTypeName(t2) << endl;
    stream <<"t3 = " << Tpf_GetTypeName(t3) << endl;
    stream <<"t4 = " << Tpf_GetTypeName(t4) << endl;
}
 
void test_last_n_types_1()
{
    using t0 = types::last_n_types_t<0, short, int, double>;
    stream << "t0 = " << t0{} << endl;
 
    using t1 = types::last_n_types_t<1, short, int, double>;
    stream << "t1 = " << t1{} << endl;
 
    using t2 = types::last_n_types_t<2, short, int, double>;
    stream << "t2 = " << t2{} << endl;
 
    using t3 = types::last_n_types_t<3, short, int, double>;
    stream << "t3 = " << t3{} << endl;
 
    using t4 = types::last_n_types_t<4, short, int, double>;
    stream << "t4 = " << t4{} << endl;
 
}
 
void test_last_n_types_2()
{
    using types_t =  types::type_list_t<short, int, double>;
 
    using t0 = types::last_n_types_t<0, types_t>;
    stream << "t0 = " << t0{} << endl;
 
    using t1 = types::last_n_types_t<1, types_t>;
    stream << "t1 = " << t1{} << endl;
 
    using t2 = types::last_n_types_t<2, types_t>;
    stream << "t2 = " << t2{} << endl;
 
    using t3 = types::last_n_types_t<3, types_t>;
    stream << "t3 = " << t3{} << endl;
 
    using t4 = types::last_n_types_t<4, types_t>;
    stream << "t4 = " << t4{} << endl;
}
 
 
void test_is_class_template()
{
    using type_t = types::types_to_template_class_t<std::vector<double>, int>;
 
    stream << Tpf_GetTypeName(type_t) << endl;
}
 
void test_nth_type_to_template_class()
{
    using tuple_t = std::tuple<>;
    
    using t0 = types::nth_type_to_template_class_t<0, tuple_t, int, short, double>;
    stream <<"t0 = " << Tpf_GetTypeName(t0) << endl;
 
    using t1 = types::nth_type_to_template_class_t<1, tuple_t, int, short, double>;
    stream <<"t1 = " << Tpf_GetTypeName(t1) << endl;
 
    using types_t = types::type_list_t<int, short, double>;
 
    using t2 = types::nth_type_to_template_class_t<2, tuple_t, types_t>;
    stream <<"t2 = " << Tpf_GetTypeName(t2) << endl;
 
    //using t3 = types::nth_type_to_template_class_t<3, tuple_t, types_t>;
    //stream <<"t3 = " << Tpf_GetTypeName(t3) << endl;   
}
 
void test_first_n_types_to_template_class()
{
    using tuple_t = std::tuple<>;
    
    using t0 = types::first_n_types_to_template_class_t<0, tuple_t, int, short, double>;
    stream <<"t0 = " << Tpf_GetTypeName(t0) << endl;
 
    using t1 = types::first_n_types_to_template_class_t<1, tuple_t, int, short, double>;
    stream <<"t1 = " << Tpf_GetTypeName(t1) << endl;
 
    using types_t = types::type_list_t<int, short, double>;
 
    using t2 = types::first_n_types_to_template_class_t<2, tuple_t, types_t>;
    stream <<"t2 = " << Tpf_GetTypeName(t2) << endl;
 
    using t3 = types::first_n_types_to_template_class_t<3, tuple_t, types_t>;
    stream <<"t3 = " << Tpf_GetTypeName(t3) << endl;
 
    // using t4 = types::first_n_types_to_template_class_t<4, tuple_t, types_t>;
    // stream <<"t4 = " << Tpf_GetTypeName(t4) << endl;
 
 
    //using t3 = types::nth_type_to_template_class_t<3, tuple_t, types_t>;
    //stream <<"t3 = " << Tpf_GetTypeName(t3) << endl;   
}
 
int main()
{
    // test_first_n_types_t();
 
    // test_first_n_types_t2();
 
    // test_last_n_types_1();
 
    // test_last_n_types_2();
 
    // test_is_class_template();
    
    // test_nth_type_to_template_class();
 
    test_first_n_types_to_template_class();
}