CODEWITHSUNDEEP
c++oop
Avengence17
Avengence17

Reputation: 3

OOP not declared in this scope

I'm having a problem with my code. It's giving me the two errors 'a' and 'MAX' was not declared in this scope, in int main().

I am pretty sure I defined it in my header file. I've read countless forums and tutorials and I'm not really sure what I'm doing wrong.

//main.cpp
/* A test driver for the VectorMin class (VectorMin.cpp) */
#include <iostream>
#include<vector>
#include "VectorMin.h"

using namespace std;

int main() {

VectorMin c1;
std::vector <int> v1(a,a+MAX);
int min = c1.recursiveMinimumVector(v1,v1[0],1);
c1.printOut(min);
return 0;
}

Implementation file

 //VectorMin.cpp
/* The VectorMin class Implementation (VectorMin.cpp) */
#include "VectorMin.h" // user-defined header in the same directory
#include <iostream>
#include <vector>
#include <cstdlib>
#include <ctime>
using namespace std;
// Constructor
VectorMin::VectorMin()
{

}


VectorMin::int recursiveMinimumVector(const std::vector<int>& b, int minVal, size_t subStart)
{
     if(subStart+1 >= b.size())
        return minVal;
    else
         return recursiveMinimumVector(b, std::min(minVal, b[subStart]), subStart+1);
}
VectorMin::void printOut(int m)
{
  std::cout << "Min value= " << m;
}

Header file

//VectorMin.h
/* The VectorMin class Header (VectorMin.h) */
#include <string>   // using string

// VectorMin class declaration
class VectorMin{

private:
   static const int MAX = 10;
   const int a[MAX] = {44, 83, -14, 1, 101, -92, 23, 2, 7, 100};

public:
   // Declare prototype of member functions

   // Constructor with default values
    VectorMin();

   // Public member Functionsvoid generateRand();
    int recursiveMinimumVector(const std::vector<int>& b, int minVal, size_t subStart);
    void printOut(int);


};

If someone could point out what I'm doing wrong and explain why it's wrong I would greatly appreciate it.

Upvotes: 0

Views: 163

Answers (2)

Cory Kramer
Cory Kramer

Reputation: 117856

In main, you have these two lines

VectorMin c1;
std::vector <int> v1(a,a+MAX);

First of all, a and MAX are member variables of the VectorMin class, so you'd have to call them like 

c1.a
VectorMin::MAX

Second of all you still can't do that because those members are private.

Upvotes: 1

Krease
Krease

Reputation: 16215

Variables aren't global.

Just because you declared them in one class doesn't make them accessible to other classes. In your case, a and MAX belong to your VectorMin class, and aren't accessible by your main function.

Upvotes: 1

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