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Providing feedback when processing a large for loop

Mark Waes
Greenhorn

Joined: Aug 06, 2008
Posts: 21
Hi,

This should be easy, but for the life of me I can't figure it out...

I'm looking to provide user feeback when processing a large for-loop, and at each 10% milestone, print the message '10% Complete', '20% Complete' etc..

my code is below, but it suffers from a problem when the countTarget instance variable is an odd number (prime numbers being a specific example) in that not all of the 10% milestones are printed.

Regardless of the number of interations required by the for-loop, I would like to print feedback 10 times.



Any help gratefully received...
fred rosenberger
lowercase baba
Bartender

Joined: Oct 02, 2003
Posts: 11499
    
  16

the problem is you're using floats here, and floating point arithmetic is never precise. What i'd probably do is something like



You may not get your output at EXACTLY 10%, but pretty dang close.


There are only two hard things in computer science: cache invalidation, naming things, and off-by-one errors
 
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