End of File for binary files

If you are reading a 'binary' file, then the end of file is when you
read the last byte; the system will tell you.  Exactly what are you
trying do to?  When you do a read, you typically request the number of
bytes to read and then the system returns the number of bytes read.
But since you did not give an indication of what/how you are trying to
do this, it is hard to make an exact suggestion.  Did you have some
experience that you think you did not get an end of file indication?
More information is required.

Hello,

I'm new to R and I'm writing a function to read binary tables (the binary
version of read.table essentially). I'm having trouble figuring out how to
determine when I reach end-of-file. Can anybody please help?

thanks!
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Jim Holtman
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What is the problem that you are trying to solve?