rm_/lib/strncat.c
2022-07-28 14:16:50 +08:00

34 lines
1.1 KiB
C

/* Concatenate strings.
Copyright (C) 1999, 2002, 2006, 2010-2022 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2002.
This file is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
This file is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include <string.h>
char *
strncat (char *dest, const char *src, size_t n)
{
char *destptr = dest + strlen (dest);
for (; n > 0 && (*destptr = *src) != '\0'; src++, destptr++, n--)
;
if (n == 0)
*destptr = '\0';
return dest;
}