"Zachary Baker" <23*5*0*2@s*u*e*t*u*a*e*u*a*> wrote: HI Zachary (and everyone), What the spec says is that rows with erroneous data need to dropped. In Assignment 1, the program needed to not proceed when an error had been detected, and instead print an error message. That is, the bad value was not printed. What I'm suggesting here is similar: if an error is found don't print the line on standard output, which has the effect of dropping it from further consideration by downstream programs. To keep error messages away from the good stuff, they should go to standard error. Fair enough? Cheers MichaelW