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Sarfaraz Nawaz
Sarfaraz Nawaz
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int Tree::objectCount = 0;

The followingabove line should be outside the class, and in .cpp file, as shown below:

//Tree.cpp 
#include "Tree.h"

int Tree::objectCount = 0;

The following line should be outside the class, and in .cpp file:

//Tree.cpp 
#include "Tree.h"

int Tree::objectCount = 0;

int Tree::objectCount = 0;

The above line should be outside the class, and in .cpp file, as shown below:

//Tree.cpp 
#include "Tree.h"

int Tree::objectCount = 0;
Source Link
Sarfaraz Nawaz
Sarfaraz Nawaz
  • 359.1k
  • 120
  • 673
  • 855

The following line should be outside the class, and in .cpp file:

//Tree.cpp 
#include "Tree.h"

int Tree::objectCount = 0;