Intermediate C++ Overview of Intermediate C++

Post by Karen Brown on November 3, 2013

Okay, there is a function called "add" and a class called "option", and we have to pass a constructor into it. It looks like this:
c->add(new option("sure",5));
I am confused on how to write the function "add". I have never had to pass a constructor before. I do not know how to write the parameters or anything.
Thanks!

Post by Karen Brown on November 3, 2013

OK...there is this one function that is like a double function, and I keep getting memory leaks
Question?? How do I pass a new choice class constructor that takes 2 arguments to a function?

Post by Karen Brown on September 24, 2013

Hello Professor Sylvain,
Here is an assignment that I received from my college computer class.
I did not understand any of this, nor did the students that I was collaborating with.
Assignment Description:
You will be creating a class that models the mathematics construct of a Matrix. A Matrix is a 2-dimensional structure, you will model this with 2d dynamic array. Your matrix will be able to add itself to another Matrix object and a couple other operations.

matrix.hpp
class Matrix : public LoggableIfc
{
  public:
     Matrix(int rows = 0, int cols = 0);
     Matrix(const Matrix& m);
     ~Matrix();
     Matrix operator=(Matrix);
     int* operator[](int);
     //Addition functions
     Matrix add(const Matrix &m) const;
     Matrix operator+(const Matrix& m) const;
     
     static int getMatrixCount();
  private:
      int rows;
      int cols;    
      int **data;    
      static int matrixCount;

};
int Matrix::matrixCount = 0;


Function Description
int* operator[](int n);
Overloaded square brackets '[]' for Matrix class,
returns the nth integer pointer column
Matrix operator+(const Matrix& m) const;
return the sum of two matrices
static int getMatrixCount();
return the value of matrixCount



matrix input file (a, b, c, d)
You will need to read in 4 matrices from a file. You need to check the upload site for the exact names, but generically, they are named as follows:

•matrix.a
•matrix.b
•matrix.c
•matrix.d

Each input file will be of the form....: rows
cols
0,0 0,1 0,2...
1,0 1,1 1,2...
...

Example: 3
4
34 23 23 65
45 234 42 64
324 34 654 21


Driver (Showoff)
This is a mandatory file in which I expect you to show off your new class. You will want to test things like: •A+B
•B+B
•C+D
•A+B+C+D
•A+A+B+B+C+C+D+D

Testing Files
Testing each class you create is mandatory and must have 3 tests for each function in the class. You do not have to test the destructor.

Thanks!