ferror(3) [osf1 man page]

ferror(3)						     Library Functions Manual							 ferror(3)

NAME

       ferror - Tests the error indicator on a stream

LIBRARY

       Standard C Library (libc)

SYNOPSIS

       #include <stdio.h>

       int ferror(
	       FILE *stream);

STANDARDS

       Interfaces documented on this reference page conform to industry standards as follows:

       ferror(): 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 can-
       not use this interface where a function is necessary; for example, a subroutine 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.

RELATED INFORMATION

       Functions: fopen(3), feof(3), fileno(3), clearerr(3)

       Standards: standards(5) delim off

																	 ferror(3)

ferror(3C)						   Standard C Library Functions 						ferror(3C)

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)

SunOS 5.11							    17 Feb 2005 							ferror(3C)