typedef problems

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Thank you for all your help!

In my header file I have :

typedef struct
{
    char name[10];
    char address[10];
    struct node *next;
} Link;

in the main code I have:

// linkedlist.cpp : Defines the entry point for the console application.

#include "stdafx.h"
#include <Source1.h>

int _tmain(int argc, _TCHAR* argv[])
{
    return 0;
}

A couple of questions:

How do I use the structure in the header file in main file?
How do I use its members in the main file?
How do I make it global?

John

Posted 27-Nov-10 19:38pm

Member 3997606

Updated 27-Nov-10 19:54pm

HimanshuJoshi

v2

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OriginalGriff · Answer 1 · 2010-11-27T21:36:00

Solution 1

Assuming "Link" is in the file "source1.h", then just declare an instance of it:

#include "stdafx.h"
#include <Source1.h>

Link myLink;

int _tmain(int argc, _TCHAR* argv[])
{
    myLink.name[0] = 'A';
    return 0;
}

That gives you a global instance "myLink" and you can use it's members.

Posted 27-Nov-10 21:36pm

OriginalGriff

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Member 3997606 28-Nov-10 21:25pm

#include "stdafx.h"
#include <source1.h>
int _tmain(int argc, _TCHAR* argv[])
{
return 0;
}

Link additems (Link *add)
^
|
suppose I want to return a pointer to the structure, how do I do this?

Member 3997606 28-Nov-10 22:25pm

Link additems (Link *add)
{
Link *curr,*prev,*newptr;
char name[10];
char addy[10];
int maxitems;
int userpress;

newptr == malloc(sizeof(Link));
while (maxitems!=50 && userpress !=999)
{
printf("Enter in Name: (up to 10 chars)");
scanf("%c",&newptr->name);
printf("Enter in address: (Up to 10 characters:");
scanf("%c",&newptr->address);
if (newptr!=NULL)
{
prev=NULL;//No Previous item
curr=head;//current item is at the head
}
while(curr!=NULL&&newptr->name!=curr->name)
{
prev=curr;//sets the previous ptr to curr
curr =curr->next;//I get an error a value of type node cannot be assigned to type Link? What does that mean?? What is the solution?
}
if ( prev==NULL)
{
*newptr->next=head;