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10 .TH FCLOSE 3C "Nov 1, 2003"
12 fclose \- close a stream
18 \fBint\fR \fBfclose\fR(\fBFILE *\fR\fIstream\fR);
23 The \fBfclose()\fR function causes the stream pointed to by \fIstream\fR to be
24 flushed and the associated file to be closed. Any unwritten buffered data for
25 the stream is written to the file; any unread buffered data is discarded. The
26 stream is disassociated from the file. If the associated buffer was
27 automatically allocated, it is deallocated.
30 The \fBfclose()\fR function marks for update the \fBst_ctime\fR and
31 \fBst_mtime\fR fields of the underlying file if the stream is writable and if
32 buffered data has not yet been written to the file. It will perform a
33 \fBclose\fR(2) operation on the file descriptor that is associated with the
34 stream pointed to by \fIstream\fR.
37 After the call to \fBfclose()\fR, any use of \fIstream\fR causes undefined
41 The \fBfclose()\fR function is performed automatically for all open files upon
42 calling \fBexit\fR(2).
45 Upon successful completion, \fBfclose()\fR returns \fB0\fR. Otherwise, it
46 returns \fBEOF\fR and sets \fBerrno\fR to indicate the error.
49 The \fBfclose()\fR function will fail if:
56 The \fBO_NONBLOCK\fR flag is set for the file descriptor underlying
57 \fIstream\fR and the process would be delayed in the write operation.
66 The file descriptor underlying stream is not valid.
75 An attempt was made to write a file that exceeds the maximum file size or the
76 process's file size limit; or the file is a regular file and an attempt was
77 made to write at or beyond the offset maximum associated with the corresponding
87 The \fBfclose()\fR function was interrupted by a signal.
96 The process is a member of a background process group attempting to write to
97 its controlling terminal, \fBTOSTOP\fR is set, the process is neither ignoring
98 nor blocking \fBSIGTTOU\fR and the process group of the process is orphaned.
107 There was no free space remaining on the device containing the file.
116 An attempt is made to write to a pipe or \fBFIFO\fR that is not open for
117 reading by any process. A \fBSIGPIPE\fR signal will also be sent to the calling
123 The \fBfclose()\fR function may fail if:
130 A request was made of a non-existent device, or the request was beyond the
131 limits of the device.
136 See \fBattributes\fR(5) for descriptions of the following attributes:
144 ATTRIBUTE TYPE ATTRIBUTE VALUE
146 Interface Stability Standard
153 \fBclose\fR(2), \fBexit\fR(2), \fBgetrlimit\fR(2), \fBulimit\fR(2),
154 \fBfcloseall\fR(3C), \fBfopen\fR(3C), \fBstdio\fR(3C),
155 \fBattributes\fR(5), \fBstandards\fR(5)