Originální popis anglicky:
fclose - close a stream
Návod, kniha: POSIX Programmer's Manual
#include <stdio.h>
int fclose(FILE *
stream);
The
fclose() function shall cause the stream pointed to by
stream
to be flushed and the associated file to be closed. Any unwritten buffered
data for the stream shall be written to the file; any unread buffered data
shall be discarded. Whether or not the call succeeds, the stream shall be
disassociated from the file and any buffer set by the
setbuf() or
setvbuf() function shall be disassociated from the stream. If the
associated buffer was automatically allocated, it shall be deallocated.
The
fclose() function shall mark for update the
st_ctime and
st_mtime fields of the underlying file, if the stream was writable, and
if buffered data remains that has not yet been written to the file. The
fclose() function shall perform the equivalent of a
close() on
the file descriptor that is associated with the stream pointed to by
stream.
After the call to
fclose(), any use of
stream results in undefined
behavior.
Upon successful completion,
fclose() shall return 0; otherwise, it shall
return EOF and set
errno to indicate the error.
The
fclose() function shall fail if:
- EAGAIN
- The O_NONBLOCK flag is set for the file descriptor
underlying stream and the process would be delayed in the write
operation.
- EBADF
- The file descriptor underlying stream is not valid.
- EFBIG
- An attempt was made to write a file that exceeds the
maximum file size.
- EFBIG
- An attempt was made to write a file that exceeds the
process' file size limit.
- EFBIG
- The file is a regular file and an attempt was made to write
at or beyond the offset maximum associated with the corresponding
stream.
- EINTR
- The fclose() function was interrupted by a
signal.
- EIO
- The process is a member of a background process group
attempting to write to its controlling terminal, TOSTOP is set, the
process is neither ignoring nor blocking SIGTTOU, and the process group of
the process is orphaned. This error may also be returned under
implementation-defined conditions.
- ENOSPC
- There was no free space remaining on the device containing
the file.
- EPIPE
- An attempt is made to write to a pipe or FIFO that is not
open for reading by any process. A SIGPIPE signal shall also be sent to
the thread.
The
fclose() function may fail if:
- ENXIO
- A request was made of a nonexistent device, or the request
was outside the capabilities of the device.
The following sections are informative.
None.
None.
None.
None.
close() ,
fopen() ,
getrlimit() ,
ulimit() , the
Base Definitions volume of IEEE Std 1003.1-2001,
<stdio.h>
Portions of this text are reprinted and reproduced in electronic form from IEEE
Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable
Operating System Interface (POSIX), The Open Group Base Specifications Issue
6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics
Engineers, Inc and The Open Group. In the event of any discrepancy between
this version and the original IEEE and The Open Group Standard, the original
IEEE and The Open Group Standard is the referee document. The original
Standard can be obtained online at http://www.opengroup.org/unix/online.html
.
