ferror(3s) [hpux man page]

ferror(3S)																ferror(3S)

NAME

       ferror(), feof(), clearerr(), ferror_unlocked(), feof_unlocked(), clearerr_unlocked() - stream status inquiries

SYNOPSIS

   Obsolescent Interfaces
DESCRIPTION

       Returns nonzero when an I/O error
		      has  previously  occurred reading from or writing to the named stream, otherwise zero.  Unless cleared by or unless the spe-
		      cific stdio routine so indicates, the error indication lasts until the stream is closed.

       Returns nonzero
		      when EOF has previously been detected reading the named input stream, otherwise zero.

       Resets the error indicator and EOF indicator on the named
		      stream to zero.

   Obsolescent Interfaces
       and stream status inquiries.

WARNINGS

       All these routines are implemented both as library functions and as macros.  The macro versions, which are used by default, are defined	in
       To  obtain  the library function, either use a to remove the macro definition or, if compiling in ANSI-C mode, enclose the function name in
       parentheses or use the function address.  The following example illustrates each of these methods :

   Reentrant Interfaces
       If is defined before including the locked versions of the library functions for and are used by default.

       and are obsolescent interfaces supported only for compatibility with existing DCE applications.	New multithreaded applications should  use
       and

SEE ALSO

       open(2), flockfile(3S), fopen(3S), thread_safety(5).

STANDARDS CONFORMANCE

																	ferror(3S)