When you see the code

   this_is_my_first_awersome_struct_in_c.i = this_is_my_fusking_awersome_method_to_multiply_this_fusking_value_from_real_world_in_struct_field(this_is_my_second_awersome_struct_in_c.j, 5);

… in C you know, at least, that j is being multiplied by five and the results stored in i.
But if you see that same snippet of code in C++, you don’t know anything. Nothing. AND THIS IS GOOD, 'cause some types with owerrided types compacted from:
    obj2.i = obj1.DoThisMyltiplyShit(reiterpret_cast<int> (obj1.j), 5);
    obj4.i = obj3.DoThisMyltiplyShit(strlen(obj1.j), 5);
where obj2|obj1 non equal obj4|obj3
to simly:
    obj2.i = obj1.j * 5;
    obj4.i = obj3.j * 5;
incapsulate all logic from external user: