rm_/lib/strncat.c

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2020-09-02 16:47:03 +08:00
/* Concatenate strings.
Copyright (C) 1999, 2002, 2006, 2010-2020 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2002.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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
General Public License for more details.
You should have received a copy of the GNU 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;
}