In article <✉forums.inprise.com> Raoul De Kezel <✉hotmail.com> wrote:
> In article <✉4ax.com>, ✉eircom.net says... > > > Still, as you know, volatile or complex > > > preconditions cannot be checked beforehand. > > > > It depends on the quality of the input data. > > There is no way we can predict beforehand that a network > connection or a target machine will break on next use. > Whatever the quality of the input data....
That information is external to the program, and enters it through function calls; thus, it is still input data.