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.\" Copyright 1995 Jim Van Zandt <jrv@vanzandt.mv.com>
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.\" Corrected prototype and include, aeb, 990927
-.TH LSEARCH 3 1999-09-27 "GNU" "Linux Programmer's Manual"
+.TH LSEARCH 3 2017-09-15 "GNU" "Linux Programmer's Manual"
.SH NAME
lfind, lsearch \- linear search of an array
.SH SYNOPSIS
.nf
.B #include <search.h>
-.sp
+.PP
.BI "void *lfind(const void *" key ", const void *" base ", size_t *" nmemb ,
-.RS
-.BI "size_t " size ", int(*" compar ")(const void *, const void *));"
-.RE
-.sp
+.BI " size_t " size ", int(*" compar ")(const void *, const void *));"
+.PP
.BI "void *lsearch(const void *" key ", void *" base ", size_t *" nmemb ,
-.RS
-.BI "size_t " size ", int(*" compar ")(const void *, const void *));"
-.RE
+.BI " size_t " size ", int(*" compar ")(const void *, const void *));"
.fi
.SH DESCRIPTION
-\fBlfind()\fP and \fBlsearch()\fP perform a linear search for
-\fIkey\fP in the array \fIbase\fP which has *\fInmemb\fP elements of
-\fIsize\fP bytes each. The comparison function referenced by
-\fIcompar\fP is expected to have two arguments which point to the
-\fIkey\fP object and to an array member, in that order, and which
-returns zero if the \fIkey\fP object matches the array member, and
-non-zero otherwise.
+.BR lfind ()
+and
+.BR lsearch ()
+perform a linear search for
+.I key
+in the array
+.IR base
+which has
+.I *nmemb
+elements of
+.I size
+bytes each.
+The comparison function referenced by
+.I compar
+is expected to have two arguments which point to the
+.I key
+object and to an array member, in that order, and which
+returns zero if the
+.I key
+object matches the array member, and
+nonzero otherwise.
.PP
-If \fBlsearch()\fP does not find a matching element, then the \fIkey\fP
-object is inserted at the end of the table, and *\fInmemb\fP is
+If
+.BR lsearch ()
+does not find a matching element, then the
+.I key
+object is inserted at the end of the table, and
+.I *nmemb
+is
incremented.
In particular, one should know that a matching element
exists, or that more room is available.
-.SH "RETURN VALUE"
-\fBlfind()\fP returns a pointer to a matching member of the array, or
-\fBNULL\fP if no match is found. \fBlsearch()\fP returns a pointer to
+.SH RETURN VALUE
+.BR lfind ()
+returns a pointer to a matching member of the array, or
+NULL if no match is found.
+.BR lsearch ()
+returns a pointer to
a matching member of the array, or to the newly added member if no
match is found.
-.SH "CONFORMING TO"
-SVID 1, SVID 3, 4.3BSD, POSIX 1003.1-2003.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lbw18 lb lb
+l l l.
+Interface Attribute Value
+T{
+.BR lfind (),
+.BR lsearch ()
+T} Thread safety MT-Safe
+.TE
+.sp 1
+.SH CONFORMING TO
+POSIX.1-2001, POSIX.1-2008, SVr4, 4.3BSD.
Present in libc since libc-4.6.27.
.SH BUGS
The naming is unfortunate.
-.SH "SEE ALSO"
+.SH SEE ALSO
.BR bsearch (3),
.BR hsearch (3),
.BR tsearch (3)
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