| August 1999 | Return to the Perl Hardware Store | Slide #35 |
Database lookups can return an iterator that generates solutions on demand
Tree searches can return an iterator that generates solutions on demand
Search functions of any sort can ..
Important note:
This is just a technique for saving the state of a partially-completed function...
...and restarting it later
Not usually considered an easy thing to do!
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Copyright © 1999 M-J. Dominus |