/* Concatenate strings. Copyright (C) 1999, 2002, 2006, 2010-2023 Free Software Foundation, Inc. Written by Bruno Haible , 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 . */ #include /* Specification. */ #include 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; }