On Thu, Oct 03, 2002 at 05:30:49PM -0400, Trey Harris wrote: > In a message dated Thu, 3 Oct 2002, Michael G Schwern writes: > > > On Thu, Oct 03, 2002 at 03:59:08PM -0400, Mike Lambert wrote: > > > With pre/post conditions, a subclass is allowed to weaken the > > > preconditions or strengthen the postconditions. > > > > How exactly does one "weaken" a precondition? > > You weaken a precondition by adding ORs; you strengthen a postcondition by > adding ANDs.
As expressions in Perl run a tad beyond simple boolean logic, could you give a concrete example? -- Michael G. Schwern <[EMAIL PROTECTED]> http://www.pobox.com/~schwern/ Perl Quality Assurance <[EMAIL PROTECTED]> Kwalitee Is Job One My beverage utensil experiences a volume crisis.
