ack/lang/cem/libcc.ansi/stdlib/mblen.c
1989-05-16 13:13:53 +00:00

21 lines
388 B
C

/*
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
* See the copyright notice in the ACK home directory, in the file "Copyright".
*/
/* $Header$ */
#include <stdlib.h>
#include <limits.h>
int
mblen(const char *s, size_t n)
{
if (s == (char *)NULL)
return 0;
if (*s == '\0')
return 0;
if (n < 1 || n > MB_CUR_MAX)
return -1;
return MB_LEN_MAX;
}