Computer Science A - 10/8/99

Write a function that will set the diagonals of an N x N matrix to
the value stored in the character variables "ch". Otherwise all the
non-diagonal characters are the same.

Declarations:
    const int N = <some positive integer>;
    apmatrix<char> TwoDim1(N, N, 'A'),
                   TwoDim2;
    char ch = <Some character value other than 'A'>;

Prototype:
    apmatrix<char> setDiagonals(const apmatrix<char>& , char );

Call:
    TwoDim2 = SetDiagonals(TwoDim1, ch);

apmatrix<char> SetDiagonals(const apmatrix<char>& TwoDim1, char ch)
{
    apmatrix<char> Temp(TwoDim1);
    int ctr;

    for(ctr = 0; ctr < N; ctr++)
    {
        Temp[ctr][ctr] = ch;
        Temp[ctr][N - ctr - 1] = ch;
    }

    return Temp;
}