Insert problem in linked list with two function code

Kay Chan · #1 03-Sep-2004, 09:35

There are two different function. The first one loads data from a txt
file and adds the name and num to the linked list. It can display the
context of the linked list. I'm designing to use second function to
input the data and add the new data to the same linked list. However, It
doesn't work. Did I miss sth or do sth wrong in the second function ?

CPP / C++ / C Code:

//Load data from restaurant text file
void rest_list(istream& is, Position p, List * restL) {
	
    string temp_name;

    p = ListHead(restL);
    int num = 1;

    //get the restaurant name in restaurnat.txt
    while ( getline(is, temp_name, "\n")) {
	char * name;

	//change type of name of restaurant from string to char
	name = new char[temp_name.length() + 1 ];
	strcpy( name, temp_name.c_str());
		
        if (!insert_name(restL, p, name, num )) {
           exit (EXIT_FAILURE);
        }

	//Move to the next node
	p = ListNext(restL, p);
        num++;

	}

}

CPP / C++ / C Code:

int AddRestaurant( List * l, Position pos, int num){

     ListNode *p;

     for ( p = l->head; p != NULL; p = p->next) {
         if( (int)p->number == num ){
	     cout << (char*)p->item;
	         if (!insert_name(l, pos, (char*)p->item, num )) {
		     exit (EXIT_FAILURE);
		 }
	      return 0;
	   }
			
}

LuciWiz · #2 03-Sep-2004, 09:52

Please use the code tags, or nobody will understand your code!
Also, please don't send me private messages regarding your problems. If I don't post an answer it is because:
1. I don't have time right now (I'm at work and I'm very busy)
2. I'm not online
3. (very important

) I DON'T KNOW
When I will have time, if I can, I will answer, trust me!

CPP / C++ / C Code:

//Load data from restaurant text file
void rest_list(istream& is, Position p, List * restL) 
{

	string temp_name;

	p = ListHead(restL);
	int num = 1;

	//get the restaurant name in restaurnat.txt
	while ( getline(is, temp_name, "\n")) 
	{
		char * name;

		//change type of name of restaurant from string to char
		name = new char[temp_name.length() + 1 ];
		strcpy( name, temp_name.c_str());

		if (!insert_name(restL, p, name, num )) 
		{
			exit (EXIT_FAILURE);
		}

		//Move to the next node
		p = ListNext(restL, p);
		num++;

	}

}

int AddRestaurant( List * l, Position pos, int num)
{

	ListNode *p;

	for ( p = l->head; p != NULL; p = p->next) 
	{
		if( (int)p->number == num )
		{
			cout << (char*)p->item;
			if (!insert_name(l, pos, (char*)p->item, num )) 
			{
				exit (EXIT_FAILURE);
			}
			return 0;
		}
	}
}

Also, you missed a bracket in your second function (I added it in).

Regards,
Luci

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