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FERROR(3) FreeBSD Library Functions Manual FERROR(3) NAME clearerr, feof, ferror, fileno -- check and reset stream status SYNOPSIS #include <stdio.h> void clearerr(FILE *stream); int feof(FILE *stream); int ferror(FILE *stream); int fileno(FILE *stream); DESCRIPTION The function clearerr() clears the end-of-file and error indicators for the stream pointed to by stream. The function feof() tests the end-of-file indicator for the stream pointed to by stream, returning non-zero if it is set. The function ferror() tests the error indicator for the stream pointed to by stream, returning non-zero if it is set. The error indicator can only be reset by the clearerr() function. The function fileno() examines the argument stream and returns its inte- ger file descriptor. ERRORS These functions should not fail and do not set the external variable errno. SEE ALSO open(2), stdio(3) STANDARDS The functions clearerr(), feof(), and ferror() conform to ANSI X3.159-1989 ("ANSI C89"). The function fileno() conforms to ISO/IEC 9945-1:1990 ("POSIX.1"). HISTORY The functions clearerr(), feof(), ferror(), and fileno() first appeared in Version 7 AT&T UNIX. FreeBSD 13.0 July 17, 2013 FreeBSD 13.0
NAME | SYNOPSIS | DESCRIPTION | ERRORS | SEE ALSO | STANDARDS | HISTORY
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