string/strxfrm.c

   1 /* Copyright (C) 1995 Free Software Foundation, Inc.
   2 This file is part of the GNU C Library.
   3
   4 The GNU C Library is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 License, or (at your option) any later version.
   8
   9 The GNU C Library is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 #include <stddef.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22
  23
  24 /* Transform SRC into a form such that the result of strcmp
  25    on two strings that have been transformed by strxfrm is
  26    the same as the result of strcoll on the two strings before
  27    their transformation.  The transformed string is put in at
  28    most N characters of DEST and its length is returned.  */
  29 size_t
  30 strxfrm (dest, src, n)
  31      char *dest;
  32      const char *src;
  33      size_t n;
  34 {
  35   return __stpncpy (dest, src, n) - dest;
  36 }