I am copying one array into another using pointers, and one value in the
array I have to fill in "by hand" if a certain condition happens.
Please, help me to understand what shall I do to assign the value
meaning white space, to the place where the pointer points to:
*--ptr = " " produces a
warning message: assignment makes integer from pointer without a cast
*--ptr means "go back one step", and then put the value
" " there. Yes,
" " is an integer, but I am not assigning it
to a pointer but putting it to the place where the pointer points to.