tc_strncat.c

T-kernel 的extension源代码

/*
 *----------------------------------------------------------------------
 *    T-Kernel / Standard Extension
 *
 *    Copyright (C) 2006 by Ken Sakamura. All rights reserved.
 *    T-Kernel / Standard Extension is distributed 
 *      under the T-License for T-Kernel / Standard Extension.
 *----------------------------------------------------------------------
 *
 *    Version:   1.00.00
 *    Released by T-Engine Forum(http://www.t-engine.org) at 2006/8/11.
 *
 *----------------------------------------------------------------------
 */

/*
 *	tc_strncat.c (libtcstr)
 *
 *	TC character string library
 */

#include <basic.h>
#include <tstring.h>


EXPORT TC* tc_strncat( TC *dest, const TC *src, W len )
{
	TC	c;
	TC	*d = dest;

	while ( *d != TNULL ) {
		d++;
	}
	while ( --len >= 0 ) {
		c = *(src++);
		if ( c == TNULL ) {
			break;
		}
		*(d++) = c;
	}
	*d = TNULL;
	return dest;
}