1  /* stpcpy.c -- copy a string and return pointer to end of new string
       2     Copyright (C) 1992, 1995, 1997-1998, 2006, 2009-2023 Free Software
       3     Foundation, Inc.
       4  
       5     NOTE: The canonical source of this file is maintained with the GNU C Library.
       6     Bugs can be reported to bug-glibc@prep.ai.mit.edu.
       7  
       8     This file is free software: you can redistribute it and/or modify
       9     it under the terms of the GNU Lesser General Public License as
      10     published by the Free Software Foundation; either version 2.1 of the
      11     License, or (at your option) any later version.
      12  
      13     This file is distributed in the hope that it will be useful,
      14     but WITHOUT ANY WARRANTY; without even the implied warranty of
      15     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      16     GNU Lesser General Public License for more details.
      17  
      18     You should have received a copy of the GNU Lesser General Public License
      19     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      20  
      21  #include <config.h>
      22  
      23  #include <string.h>
      24  
      25  #undef __stpcpy
      26  #ifdef _LIBC
      27  # undef stpcpy
      28  #endif
      29  
      30  #ifndef weak_alias
      31  # define __stpcpy stpcpy
      32  #endif
      33  
      34  /* Copy SRC to DEST, returning the address of the terminating '\0' in DEST.  */
      35  char *
      36  __stpcpy (char *dest, const char *src)
      37  {
      38    register char *d = dest;
      39    register const char *s = src;
      40  
      41    do
      42      *d++ = *s;
      43    while (*s++ != '\0');
      44  
      45    return d - 1;
      46  }
      47  #ifdef weak_alias
      48  weak_alias (__stpcpy, stpcpy)
      49  #endif