OpenCV: print matrix

void PrintMat(CvMat *A)
{
int i, j;
for (i = 0; i < A->rows; i++)
{
printf("\n");
switch (CV_MAT_DEPTH(A->type))
{
case CV_32F:
case CV_64F:
for (j = 0; j < A->cols; j++)
printf ("%8.3f ", (float)cvGetReal2D(A, i, j));
break;
case CV_8U:
case CV_16U:
for(j = 0; j < A->cols; j++)
printf ("%6d",(int)cvGetReal2D(A, i, j));
break;
default:
break;
}
}
printf("\n");
}

Some matrix operations need to be updated.