/*----------------------------------------------------------
   a string_node is a class:
      string_node(string value)  
   ...representing a node in a singly-linked list of string values,
   each with:
       a value (the string value in that node), and
       a pointer to the next string_node in the list.          
                
   template for a function with a string_node parameter 
       a_string_node:         
   ret_type process_string_node(string_node a_string_node)         
   {            
       return  ...a_string_node.get_value()...     
               ...a_string_node.get_next()...                  
   }           
--------------------------------------------------------------*/

#include <iostream>
#include "string_node.h"
using namespace std;

// constructors

string_node::string_node(string a_value)
{
    value = a_value;
    next_ptr = NULL;
}
        
string_node::string_node()
{
    value = "";
    next_ptr = NULL;
}

// selectors

string string_node::get_value() const
{
    return value;
}

string_node* string_node::get_next() const
{
    return next_ptr;
}

// modifiers

void string_node::set_value(string new_value)
{
    value = new_value;
}

void string_node::set_next(string_node *new_next_ptr)
{
    next_ptr = new_next_ptr;
}