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POAddition of 2D Dynamic Arrays
 

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    <p>I have a class project that is to make and operate on dynamic objects. I have a class called Matrix that uses a 2 dimensional pointer array to store object of type Complex (which is a complex number class). I need to be able to add 2 arrays by adding all of the values in the arrays together and returning a new array. The issue is that I don't understand the syntax for accessing each Complex object in the array. Here is what I have so far for the overloaded addition operator:</p> <pre><code>const Matrix Matrix::operator+(const Matrix&amp; rhs) const { Matrix newMatrix(mRows,mCols); for(int i=0;i&lt;mRows;i++) { for(int j=0;j&lt;mCols;j++) { (*newMatrix.complexArray[i]) = (*complexArray[i])+ (*rhs.complexArray[i]); } } return newMatrix; } </code></pre> <p>Here is the overloaded input operator for the Matrix object:</p> <pre><code>istream&amp; operator&gt;&gt;(istream&amp; input, Matrix&amp; matrix) { bool inputCheck = false; int cols; while(inputCheck == false) { cout &lt;&lt; "Input Matrix: Enter # rows and # columns:" &lt;&lt; endl; input &gt;&gt; matrix.mRows &gt;&gt; cols; matrix.mCols = cols/2; //checking for invalid input if(matrix.mRows &lt;= 0 || cols &lt;= 0) { cout &lt;&lt; "Input was invalid. Try using integers." &lt;&lt; endl; inputCheck = false; } else { inputCheck = true; } input.clear(); input.ignore(80, '\n'); } if(inputCheck = true) { cout &lt;&lt; "Input the matrix:" &lt;&lt; endl; for(int i=0;i&lt; (matrix.mRows+matrix.mCols);i++) { Complex* newComplex = new Complex(); input &gt;&gt; *newComplex; matrix.complexArray[i] = newComplex; } } return input; } </code></pre> <p>Here is the Matrix class definition:</p> <pre><code>class Matrix { friend istream&amp; operator&gt;&gt;(istream&amp;, Matrix&amp;); friend ostream&amp; operator&lt;&lt;(ostream&amp;, const Matrix&amp;); private: int mRows; int mCols; static const int MAX_ROWS = 10; static const int MAX_COLUMNS = 15; Complex **complexArray; public: Matrix(int=0,int=0); Matrix(Complex&amp;); ~Matrix(); Matrix(Matrix&amp;); Matrix&amp; operator=(const Matrix&amp;); const Matrix operator+(const Matrix&amp;) const; }; </code></pre> <p>And the constructor:</p> <pre><code>Matrix::Matrix(int r, int c) { if(r&gt;0 &amp;&amp; c&gt;0) { mRows = r; mCols = c; } else { mRows = 0; mCols = 0; } if(mRows &lt; MAX_ROWS &amp;&amp; mCols &lt; MAX_COLUMNS) { //complexArray= new Complex[mRows]; complexArray= new Complex*[mRows]; for(int i=0;i&lt;mRows;i++) { complexArray[i] = new Complex[mCols]; } } } </code></pre> <p>As it is now, the program compiles, but stops working when it gets to the addition of matrices during runtime. If anyone can tell me what syntax I should be using and why, it would be extremely helpful. </p>
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