ferror(3)ferror(3)NAMEferror - Test the error indicator on a stream
SYNOPSIS
#include <stdio.h>
int ferror(
FILE *stream );
LIBRARY
Standard C Library (libc)
STANDARDS
Interfaces documented on this reference page conform to industry stan‐
dards as follows:
ferror(): XSH4.0, XSH4.2, XSH5.0
Refer to the standards(5) reference page for more information about
industry standards and associated tags.
PARAMETERS
Specifies the input or output stream.
DESCRIPTION
The ferror() function tests whether input/output errors have occurred
on the specified stream.
NOTES
[Tru64 UNIX] The ferror() function may be a macro (depending on the
compile-time definitions used in the source). Consequently, you cannot
use this interface where a function is necessary; for example, a sub‐
routine pointer cannot point to it.
RETURN VALUES
If an I/O error occurred when reading from or writing to the stream
specified by the stream parameter, a nonzero value is returned. Other‐
wise, a value of 0 (zero) is returned.
SEE ALSO
Functions: fopen(3), feof(3), fileno(3), clearerr(3)
Standards: standards(5)
Network Programmer's Guide
ferror(3)
