.BR fts_children ()
returns a pointer to a linked list of structures, each of which describes
one of the files contained in a directory in the hierarchy.
-
+.PP
In general, directories are visited two distinguishable times; in preorder
(before any of their descendants are visited) and in postorder (after all
of their descendants have been visited).
In this manual page, "file" and
"FTSENT structure"
are generally interchangeable.
-
+.PP
The
.I FTSENT
structure contains fields describing a file.
.BR fts_set ()
function
returns 0 on success, and \-1 if an error occurs.
-
+.PP
The
.I instr
argument is either 0 (meaning "do nothing") or one of the following values:
.BR fts_children ()
T} Thread safety MT-Unsafe
.TE
-
+.sp 1
.SH CONFORMING TO
4.4BSD.
.SH BUGS