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How to Make a Pointer point towards an existing 2dArray

Discussion in 'C' started by falconwise, Sep 1, 2010.

  1. falconwise

    falconwise New Member

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    Original Problem
    I have an existing 2D array that is already filled with data for a matrix. I also have a structure that has a pointer looking like this double ** pointer.

    That being said. Here's a miniature version of the problem
    Code:
    int main (){
            int stuff [2][2];
            stuff[0][0] = 1;
            stuff[0][1] = 2;
            stuff[1][0] = 3;
            stuff[1][1] = 4;
            int **pointer;
            int i;
            int j;
            pointer = stuff[0][0]; //Here lies the problem: Its an incompatible pointer type
            for (i = 0; i < 2; i++){
                    for (j = 0; j < 2; j++){
                            printf("%i\n", (*(*(pointer+i)+j)));
                    }
            }
            return 0;
    }
    So my problem with this is that I don't understand pointers well enough to see what is wrong with this. From what I understand, the pointer is pointing at the first memory address of array, but I get the incompatible pointer type problem, which is confusing me. Can someone explain why this is wrong and how it should be properly coded. Thanks.
     
  2. techgeek.in

    techgeek.in New Member

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    Occupation:
    EOC (exploitation of computers)..i m a Terminator.
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    Not an alien!! for sure
    Home Page:
    name of the array is always a pointer...so write:-
    pointer=stuff
     

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