1FERROR(3S)                                                          FERROR(3S)
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NAME

6       ferror, feof, clearerr, fileno - stream status inquiries
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SYNOPSIS

9       #include <stdio.h>
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11       feof(stream)
12       FILE *stream;
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14       ferror(stream)
15       FILE *stream
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17       clearerr(stream)
18       FILE *stream
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20       fileno(stream)
21       FILE *stream;
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DESCRIPTION

24       Feof  returns  non-zero  when  end  of  file is read on the named input
25       stream, otherwise zero.  Unless cleared by  clearerr,  the  end-of-file
26       indication lasts until the stream is closed.
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28       Ferror  returns  non-zero when an error has occurred reading or writing
29       the named stream, otherwise zero.   Unless  cleared  by  clearerr,  the
30       error indication lasts until the stream is closed.
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32       Clearerr  resets  the  error  and  end-of-file  indicators on the named
33       stream.
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35       Fileno returns the integer file descriptor associated with the  stream,
36       see open(2).
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38       Currently all of these functions are implemented as macros; they cannot
39       be redeclared.
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SEE ALSO

42       fopen(3S), open(2)
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464th Berkeley Distribution        May 14, 1986                       FERROR(3S)