xref: /titanic_50/usr/src/man/man3c/ferror.3c (revision ed22c7109fc5dd9e1b7a5d0333bdc7ad2718e2ab)
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FERROR 3C "Feb 17, 2005"
NAME
ferror, feof, clearerr, fileno - stream status inquiries
SYNOPSIS

#include <stdio.h>

int ferror(FILE *stream);

int feof(FILE *stream);

void clearerr(FILE *stream);

int fileno(FILE *stream);
DESCRIPTION

The ferror() function returns a non-zero value when an error has previously occurred reading from or writing to the named stream (see Intro(3)). It returns 0 otherwise.

The feof() function returns a non-zero value when EOF has previously been detected reading the named input stream. It returns 0 otherwise.

The clearerr() function resets the error indicator and EOF indicator to 0 on the named stream.

The fileno() function returns the integer file descriptor associated with the named stream; see open(2).

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability Standard
MT-Level MT-Safe
SEE ALSO

open(2), Intro(3), fopen(3C), stdio(3C), attributes(5), standards(5)