.\" Copyright (c) 2006, Michael Kerrisk <mtk.manpages@gmail.com>
.\"
+.\" %%%LICENSE_START(VERBATIM)
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-.TH POSIX_FALLOCATE 3 2009-09-30 "GNU" "Linux Programmer's Manual"
+.TH POSIX_FALLOCATE 3 2013-02-12 "GNU" "Linux Programmer's Manual"
.SH NAME
posix_fallocate \- allocate file space
.SH SYNOPSIS
.nf
-.B #define _XOPEN_SOURCE 600
.B #include <fcntl.h>
.sp
.BI "int posix_fallocate(int " fd ", off_t " offset ", off_t " len );
.fi
+.sp
+.ad l
+.in -4n
+Feature Test Macro Requirements for glibc (see
+.BR feature_test_macros (7)):
+.in
+.sp
+.BR posix_fallocate ():
+.RS 4
+_XOPEN_SOURCE\ >=\ 600 || _POSIX_C_SOURCE\ >=\ 200112L
+.RE
+.ad
.SH DESCRIPTION
The function
.BR posix_fallocate ()
.IR offset + len ,
then the file is increased to this size;
otherwise the file size is left unchanged.
-.SH "RETURN VALUE"
+.SH RETURN VALUE
.BR posix_fallocate ()
returns zero on success, or an error number on failure.
Note that
.I errno
is not set.
-.SH "ERRORS"
+.SH ERRORS
.TP
.B EBADF
.I fd
.TP
.B ESPIPE
.I fd
-refers to a pipe of file descriptor.
+refers to a pipe.
.SH VERSIONS
.BR posix_fallocate ()
is available since glibc 2.1.94.
-.SH "CONFORMING TO"
+.SH CONFORMING TO
POSIX.1-2001.
POSIX.1-2008 says that an implementation
give the error if
.I len
equals zero.
-.SH "SEE ALSO"
+.SH SEE ALSO
+.BR fallocate (1),
.BR fallocate (2),
.BR lseek (2),
-.BR posix_fadvise (2),
-.BR feature_test_macros (7)
+.BR posix_fadvise (2)
+.SH COLOPHON
+This page is part of release 3.65 of the Linux
+.I man-pages
+project.
+A description of the project,
+and information about reporting bugs,
+can be found at
+\%http://www.kernel.org/doc/man\-pages/.