how to dynamically allocate double dimensional arrays/vectors with 'new'??

This is a discussion on how to dynamically allocate double dimensional arrays/vectors with 'new'?? within the C++ Programming forums, part of the General Programming Boards category; can anyone help me? its in a class....

  1. #1
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    how to dynamically allocate double dimensional arrays/vectors with 'new'??

    can anyone help me? its in a class.
    I Love Jesus

  2. #2
    zen
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    Something like this -

    Code:
    int row =10;
    	int col =20;
    
    	int** arr = new int*[row];
    
    	for(int i=0;i<row;i++)
    		arr[i]=new int[col];
    
    	//do stuff
    
    	for(int j=0;j<row;j++)
    		delete [] arr[j];
    
    	delete [] arr;
    zen

  3. #3
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    Originally posted by zen
    Something like this -

    Code:
    	int** arr = new int*[row];
    What does int ** mean? I've seen double asterisks a few places, but never an explanation of them.

  4. #4
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    Pointing to something pointing to something!

    Of course....

    In this case, a pointer to an array of pointers. For TRUE dynamoism

    Ah.
    "Technology has merely provided us with a more efficient means for going backwards" - Aldous Huxley

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