Help me resolve the errors below
I get the following warnings:
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50 50 declaration shadows a field of linkedListForward
60. 57 will never be executed
82. 28 variable 'first' is uninitialized when used here
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Here is my code:
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#include<iostream>
#include<cassert>
using namespace std;
struct nodeType
{
int info;
nodeType *link;
};
class linkedListForward
{
public:
nodeType *buildListForward();
nodeType *first, *last, *newNode;
void printList();
int largestElement(nodeType *first) ;
};
nodeType *linkedListForward::buildListForward()
{
int num;
cout<<"Enter a list of integers ending with -999.\n";
cin >> num;
first = NULL;
while(num != -999)
{
newNode = new nodeType;
assert(newNode != NULL);
newNode->info = num;
newNode->link = NULL;
if(first == NULL)
{
first = newNode;
last = newNode;
}
else
{
last->link = newNode;
last = newNode;
}
cin >> num;
}//end while
return first;
}//end buildListForward
int linkedListForward::largestElement(nodeType *first)
{
int max = INT_MIN;
while(first != NULL)
{
if(max < first->info)
max = first->info;
first = first->link;
}
return max;
// }
cout<<endl<<"Largest element in myList is : "<<max <<endl;
}
void linkedListForward::printList()
{
cout<<"Linked list printed out: " <<endl;
nodeType *current;
current = first;
while(current != NULL)
{
cout << current->info << " ";
current = current->link;
}
}
int main()
{
linkedListForward myList;
nodeType *first;
myList.buildListForward();
myList.printList();
myList.largestElement( first);
//{cout <<"LargestElement in myList is: "<<max;}
}
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The line are actually 49. 60. And 81
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