From 4ae56c5a42d724c3aff7f09a1de29bfd869100fa Mon Sep 17 00:00:00 2001
From: Iurii Tatishchev <itatishch@gmail.com>
Date: Thu, 2 May 2024 13:03:27 -0700
Subject: [PATCH] 6.10 Lab*: Singly-Linked Lists (Park)

Replace Park.hDisplay() with output stream operator
---
 03-lists/LinkedList.cpp |  2 +-
 03-lists/Park.cpp       | 12 ++++++------
 03-lists/Park.h         |  2 +-
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/03-lists/LinkedList.cpp b/03-lists/LinkedList.cpp
index 36d3138..1e3dead 100644
--- a/03-lists/LinkedList.cpp
+++ b/03-lists/LinkedList.cpp
@@ -97,7 +97,7 @@ void LinkedList::displayList() const {
     // While pCur points to a node, traverse the list.
     while (pCur) {
         // Display the value in this node.
-        pCur->park.hDdisplay();
+        cout << pCur->park << endl;
 
         // Move to the next node.
         pCur = pCur->next;
diff --git a/03-lists/Park.cpp b/03-lists/Park.cpp
index fb6fe3d..beab99c 100644
--- a/03-lists/Park.cpp
+++ b/03-lists/Park.cpp
@@ -38,11 +38,12 @@ Park::Park(string cd, string st, string nm, string dsc, int yr) {
 // Displays the values of a Park object member variables
 // on one line (horizontal display)
 // ***********************************************************
-void Park::hDdisplay() const {
-    cout << code << " ";
-    cout << state << " ";
-    cout << year << " ";
-    cout << name << " " << endl;
+ostream& operator<<(ostream &out, const Park &park) {
+    out << park.code << " ";
+    out << park.state << " ";
+    out << park.year << " ";
+    out << park.name << " ";
+    return out;
 }
 
 // ***********************************************************
@@ -55,4 +56,3 @@ void Park::vDisplay() const {
     cout << year << endl;
     cout << state << endl;
 }
-
diff --git a/03-lists/Park.h b/03-lists/Park.h
index 63b7477..a5ef177 100644
--- a/03-lists/Park.h
+++ b/03-lists/Park.h
@@ -56,7 +56,7 @@ public:
     int getYear() const { return year; }
 
     //other functions
-    void hDdisplay() const;
+    friend std::ostream &operator<<(std::ostream &, const Park &);
 
     void vDisplay() const;
 };