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Old 10-19-2004, 12:00 PM   #1 (permalink)
Swashbuckling
 
Location: Iowa...sometimes
C++ Basic file I/O troubles

Why does my program read the last line of the input file twice?

The problem occurs when I use:

while(!fin.eof()){
}

or

while(!fin.fail()){
}

THANKS IN ADVANCE
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Old 10-19-2004, 12:05 PM   #2 (permalink)
Swashbuckling
 
Location: Iowa...sometimes
eh, i found a way around the problem, i still dont understand why it was happening though.
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Old 10-19-2004, 07:34 PM   #3 (permalink)
Über-Rookie
 
Location: No longer, D.C
it is probably due to this..

it reads the last line of the file the first time around, as it should.. does its business.
then the loop goes through and it isn't at the end of the file yet. Then you try to read the next line. It is EOF, but you still have your previous data there (the last line) so it does its business again.. then the loop exits..

a possibility.
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Old 10-31-2004, 03:36 PM   #4 (permalink)
Upright
 
I think your problem may be due to using a while(){} loop instead of a for{}while() loop to execute the commands.
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