.\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
.\"
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.\" References consulted:
.\"     Linux libc source code
.\"     Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
.\"     386BSD man pages
.\" Modified Sat Jul 24 17:57:50 1993 by Rik Faith (faith@cs.unc.edu)
.TH STRSPN 3  "12 de Abril de 1993" "" "Manual del Programador de Linux"
.SH NOMBRE
strspn, strcspn \- busca un conjunto de caracteres en una cadena
.SH SINOPSIS
.nf
.B #include <string.h>
.sp
.BI "size_t strspn(const char *" s ", const char *" acepta );
.sp
.BI "size_t strcspn(const char *" s ", const char *" rechaza );
.fi
.SH DESCRIPCIÓN
La función \fBstrspn()\fP calcula la longitud del segmento inicial de \fIs\fP
que consta únicamente de caracteres en \fIacepta\fP.
.PP
La función \fBstrcspn()\fP calcula la longitud del segmento inicial de \fIs\fP
que consta únicamente de caracteres que no aparecen en \fIrechaza\fP.
.SH "VALOR DEVUELTO"
La función \fBstrspn()\fP devuelve el número de caracteres del segmento inicial de
\fIs\fP que contiene sólo caracteres perteneciantes a \fIacepta\fP.
.PP
La función \fBstrcspn()\fP devuelve el número de caracteres del segmento inicial de
\fIs\fP que consta únicamente de caracteres que no están en \fIrechaza\fP.
.SH "CONFORME A"
SVID 3, POSIX, BSD 4.3, ISO 9899
.SH "VÉASE TAMBIÉN"
.BR index "(3), " memchr "(3), " rindex "(3), " strchr (3),
.BR strpbrk "(3), " strsep "(3), " strstr "(3), " strtok (3)