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.\" Copyright 1995 Jim Van Zandt <jrv@vanzandt.mv.com>
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.\" Corrected prototype and include, aeb, 990927
.\"
.\" Translated 3 Mar 1998 by Vicente Pastor Gómez
.\"	<VPASTORG@santandersupernet.com,vicpastor@hotmail.com>
.\" Translation revised Tue Apr 18 2000 by Juan Piernas <piernas@ditec.um.es>
.\"
.TH LSEARCH 3  "27 septiembre 1999" "GNU" "Manual del Programador de Linux"
.SH NOMBRE
lfind, lsearch \- búsqueda lineal en una matriz.
.SH SINOPSIS
.nf
.B #include <search.h>
.sp
.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 "void *lsearch(const void *" key ", void *" base ", size_t *" nmemb ,
.RS
.BI "size_t " size ", int (*" compar ")(const void *, const void *));
.RE
.fi
.SH DESCRIPCIÓN
\fBlfind()\fP y \fBlsearch()\fP realizan una búsqueda lineal de
\fIkey\fP en la matriz \fIbase\fP que tiene *\fInmemb\fP elementos de
\fIsize\fP bytes cada uno. Se espera que la función de comparación a que
hace referencia \fIcompar\fP tenga dos argumentos que apuntan al objeto
\fIkey\fP y a un miembro de la matriz, en ese orden, y que devuelva cero si
el objeto \fIkey\fP coincide con el miembro de la matriz, y distinto de
cero en cualquier otro caso.
.PP
Si \fBlsearch()\fP no encuentra un elemento coincidente, entonces el objeto
\fIkey\fP es insertado al final de la tabla, y *\fInmemb\fP es incrementado.
.SH "VALOR DEVUELTO"
\fBlfind()\fP devuelve un puntero a un miembro coincidente de la matriz, o
\fBNULL\fP si no hubo coincidencias. \fBlsearch()\fP devuelve un puntero a un
miembro coincidente de la matriz, o al nuevo miembro añadido si no hubo
coincidencias.
.\" .SH "CONFORME A"
.\" SVID 3, BSD 4.3
.\" Present in libc since libc-4.6.27.
.SH "VÉASE TAMBIÉN"
.BR bsearch "(3), " hsearch "(3), " tsearch "(3)"