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Date: Mon, 30 Aug 2004 13:16:57 -0400
From: Hyman Rosen <hyrosen@mail.com>
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Subject: Re: Binding to feof
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Date: 2004-08-30T13:16:57-04:00
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Jeffrey Carter wrote:
> That would explain it. That seems to make the function useless, since 
> the other operations in my binding raise an exception if an operation 
> fails by reaching the end of file.

You cannot have anticipatory feof from the keyboard without actually
trying to read data and perhaps blocking, and in C, keyboard and file
I/O use the same mechanism. So instead, feof was designed to be after
the fact, so that when a read fails, you can check whether it was due
to EOF or some other reason.