kmx git

/* Concatenate strings.
   Copyright (C) 1999, 2002, 2006, 2010-2025 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;
}
kc3-lang/gnulib/lib/strncat.c

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lib/strncat.c
