libiberty/stpcpy.c

   1 /* Implement the stpcpy function.
   2    Copyright (C) 2003-2017 Free Software Foundation, Inc.
   3    Written by Kaveh R. Ghazi <ghazi@caip.rutgers.edu>.
   4
   5 This file is part of the libiberty library.
   6 Libiberty is free software; you can redistribute it and/or
   7 modify it under the terms of the GNU Library General Public
   8 License as published by the Free Software Foundation; either
   9 version 2 of the License, or (at your option) any later version.
  10
  11 Libiberty is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 Library General Public License for more details.
  15
  16 You should have received a copy of the GNU Library General Public
  17 License along with libiberty; see the file COPYING.LIB.  If
  18 not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
  19 Boston, MA 02110-1301, USA.  */
  20
  21 /*
  22
  23 @deftypefn Supplemental char* stpcpy (char *@var{dst}, const char *@var{src})
  24
  25 Copies the string @var{src} into @var{dst}.  Returns a pointer to
  26 @var{dst} + strlen(@var{src}).
  27
  28 @end deftypefn
  29
  30 */
  31
  32 #include <ansidecl.h>
  33 #include <stddef.h>
  34
  35 extern size_t strlen (const char *);
  36 extern PTR memcpy (PTR, const PTR, size_t);
  37
  38 char *
  39 stpcpy (char *dst, const char *src)
  40 {
  41   const size_t len = strlen (src);
  42   return (char *) memcpy (dst, src, len + 1) + len;
  43 }