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Re: eof() for file descriptors missing?

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Re: eof() for file descriptors missing?

Subject: Re: eof() for file descriptors missing?
From: Chris Espinosa <email@hidden>
Date: Tue, 29 Jan 2008 23:26:04 -0800

On Jan 29, 2008, at 8:52 AM, Scott Andrew wrote:

I am trying to find the eof function so that i can loop through a file until the end of file. I am using a mixture of NSFileHandle and c calls so I am not looking for feof.


There is no eof() function in ISO C99.

If you're using NSFileHandle readDataOfLength:, you're at EOF if the size of the data is 0 or less than the length desired.

If you're using read(), you're at EOF when read returns 0.

If you're using fread, you're at EOF when fread returns a size_ that's 0 or smaller than nitems, or feof() returns true.

Are you thinking of the .eof() member function in C++, or the EOF wide character file marker in wchar.h?

Chris
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