There is something seriously wrong with my C++ compiler today

Oct 30, 2018 at 4:48pm
Can I be helped with these errors that I get with private members in my program:
I get errors with first , last , and count
1
2
3
4
5
  protected:
    int count; //variable to store the number of list elements
                 //
    nodeType<Type> *first; //pointer to the first node of the list
    nodeType<Type> *last;  //pointer to the last node of the list 


The source code is very long & cannot fit in.
The header file is in LinkedListType.h by DS Malik
Oct 30, 2018 at 5:13pm
South Africa is kind of a long way to stretch to look at your screen, so I suggest you tell us what the errors are.
Oct 31, 2018 at 7:59am
The errors on the protected members first, last, and count are my problem: that they were not declared in this scope.

mingw32-g++.exe -c "C:\Martin\MalikDownloads\Chapter 5 Source Code\orderedLinkedListType\Chapter5OrderedLinkedListType\main.cpp" -o "C:\Martin\MalikDownloads\Chapter 5 Source Code\orderedLinkedListType\Chapter5OrderedLinkedListType\main.o"
In file included from C:\Martin\MalikDownloads\Chapter 5 Source Code\orderedLinkedListType\Chapter5OrderedLinkedListType\main.cpp:2:0:
C:\Martin\MalikDownloads\Chapter 5 Source Code\orderedLinkedListType\Chapter5OrderedLinkedListType\orderedLinkedListType.h: In member function 'bool orderedLinkedListType<Type>::search(const Type&)':
C:\Martin\MalikDownloads\Chapter 5 Source Code\orderedLinkedListType\Chapter5OrderedLinkedListType\orderedLinkedListType.h:43:15: error: 'first' was not declared in this scope
C:\Martin\MalikDownloads\Chapter 5 Source Code\orderedLinkedListType\Chapter5OrderedLinkedListType\orderedLinkedListType.h: In member function 'void orderedLinkedListType<Type>::insertNode(const Type&)':
C:\Martin\MalikDownloads\Chapter 5 Source Code\orderedLinkedListType\Chapter5OrderedLinkedListType\orderedLinkedListType.h:74:5: error: 'first' was not declared in this scope
C:\Martin\MalikDownloads\Chapter 5 Source Code\orderedLinkedListType\Chapter5OrderedLinkedListType\orderedLinkedListType.h:77:5: error: 'count' was not declared in this scope
C:\Martin\MalikDownloads\Chapter 5 Source Code\orderedLinkedListType\Chapter5OrderedLinkedListType\orderedLinkedListType.h:97:5: error: 'count' was not declared in this scope
C:\Martin\MalikDownloads\Chapter 5 Source Code\orderedLinkedListType\Chapter5OrderedLinkedListType\orderedLinkedListType.h:103:5: error: 'count' was not declared in this scope
C:\Martin\MalikDownloads\Chapter 5 Source Code\orderedLinkedListType\Chapter5OrderedLinkedListType\orderedLinkedListType.h: In member function 'void orderedLinkedListType<Type>::deleteNode(const Type&)':
C:\Martin\MalikDownloads\Chapter 5 Source Code\orderedLinkedListType\Chapter5OrderedLinkedListType\orderedLinkedListType.h:116:5: error: 'first' was not declared in this scope
C:\Martin\MalikDownloads\Chapter 5 Source Code\orderedLinkedListType\Chapter5OrderedLinkedListType\orderedLinkedListType.h:150:6: error: 'count' was not declared in this scope
Oct 31, 2018 at 9:22am
An hypothesis from this thread:
http://osprey.unisa.ac.za/phorum/read.php?317,102722

Have you included “linkedList.h”?
#include "linkedList.h"
Oct 31, 2018 at 9:30am
Hello Bopaki,

I think it is time to post the entire header file not just the portion that you think is the problem.

Refer back to helios's message http://www.cplusplus.com/forum/beginner/245091/#msg1084508

I am thinking that there is more going on in this file than what little bit you posted.

Andy
Oct 31, 2018 at 10:42am
You're not showing us nearly enough code for us to be able to know what the problem is.

Please post a minimal, compilable codeset that exhibits the problem.
Oct 31, 2018 at 2:35pm
Unqualified names will not be looked-up in the base class when the type that you are inheriting from depends on a template parameter. To make it work you can put this-> in front of the name (this->first) or use a qualified name (orderedLinkedListType::first, or LinkedListType<Type>::first).
Last edited on Oct 31, 2018 at 2:38pm
Nov 9, 2018 at 7:57am
Thank you very much to everybody. The program worked very well after putting this-> in front of the protested members.

And again thank you! thank you!! thank you!!!
Topic archived. No new replies allowed.