When I'm learning a new language I like to translate old programs into the new
language as a test of my understanding. However, many of the old programs are
from old programming texts, many written in the time of punch-cards for batch
processing, and many containing significant amounts of code that only tests for
valid data. Should we still be writing programs in this fashion, or acknowledge
the fact that better tools for pre-screening data are now available and code
only for the problem at hand?
Michael
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