Implement a linked list program with the following functions - c++

Question

i am trying to implement a linked list with add, search, remove and print functions. But i keep getting errors that "search, print and file are not declared in this scope" and ISO C++ forbids comparison between pointer and integer [-fpermissive] error. Any help would be appreciated.
#include <iostream>
#include <stdio.h>
#include <string>
using namespace std;
struct node
{
public:
char name;
node *next;
};
bool isEmpty(node *head);
char welcomeScreen();
void addInitialElement(node *head, node*last, char name);
void add (node *&head, node *&last, char name);
void serach (node *current);
void remove (node *&head, node *&last);
void printFile(node *current);
bool isEmpty(node *head)
{
if(head == NULL)
return true;
else
return false;
}
char welcomeScreen()
{
char options;
cout <<"Address Book \n";
cout <<"Available Commands \n";
cout <<" add <name>. \n";
cout <<" search <name>. \n";
cout <<" remove <name>. \n";
cout <<" print \n";
cout <<" file <filename>. \n";
cout <<" quit \n";
cin >> options;
return options;
}
void addInitialElement(node *head, node*last, char name)
{
node *temp = new node;
temp->name = name;
temp->next = NULL;
head = temp;
last = temp;
}
void add (node *&head, node *&last, char name)
{
if(isEmpty(head))
addInitialElement(head, last,name);
else
{
node *temp = new node;
temp->name = name;
temp->next = NULL;
last->next = temp;
last = temp;
}
}
void serach (node *current)
{
node *temp = new node;
if (current->name == temp)
{
cout << "The List Contains the Following: \n";
while(current != NULL)
{
cout<< current->name <<endl;
current = current->next;
}
}
}
void remove (node *&head, node *&last)
{
if(isEmpty(head))
cout << "ERROR: Not found for Removal. \n";
else if(head == last)
{
delete head;
head == NULL;
last == NULL;
}
else
{
node *temp = head;
head = head->next;
delete temp;
}
}
void printFile(node *current)
{
if(isEmpty(current))
cout << "NO NAME IN LIST. \n";
else
{
cout << "The List Contains the Following: \n";
while(current != NULL)
{
cout<< current->name <<endl;
current = current->next;
}
}
}
int main()
{
node *head = NULL;
node *last = NULL;
char options;
char name;
do{
options = welcomeScreen();
switch(options)
{
case '1': cout <<"please add a name: ";
cin >> name;
add(head, last, name);
break;
case '2' : search(head, last);
cin >> name;
break;
case '3' : remove(head, last);
break;
case '4' : print(head);
break;
case '5' : file(head);
break;
default: cout << "system exit \n";
}
}while(options != '6');
}

Answer 1

You misspelled search. Do a find / replace on "serach".
In case 4, you may mean to call printFile instead of print
case '4' : printFile(head);
In case 5, I don't know what your intention is here, but there is no function called "file". Try searching on that word, file, and you'll see.