string/argz-count.c

   1 /* Routines for dealing with '\0' separated arg vectors.
   2    Copyright (C) 1995, 1996, 1997, 2002 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Written by Miles Bader <miles@gnu.ai.mit.edu>
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library 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    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #include <argz.h>
  22 #include <string.h>
  23
  24 /* Returns the number of strings in ARGZ.  */
  25 size_t
  26 __argz_count (const char *argz, size_t len)
  27 {
  28   size_t count = 0;
  29   while (len > 0)
  30     {
  31       size_t part_len = strlen(argz);
  32       argz += part_len + 1;
  33       len -= part_len + 1;
  34       count++;
  35     }
  36   return count;
  37 }
  38 INTDEF(__argz_count)
  39 weak_alias (__argz_count, argz_count)