string/argz-count.c

   1 /* Routines for dealing with '\0' separated arg vectors.
   2    Copyright (C) 1995-2023 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <argz.h>
  20 #include <string.h>
  21
  22 /* Returns the number of strings in ARGZ.  */
  23 size_t
  24 __argz_count (const char *argz, size_t len)
  25 {
  26   size_t count = 0;
  27   while (len > 0)
  28     {
  29       size_t part_len = strlen(argz);
  30       argz += part_len + 1;
  31       len -= part_len + 1;
  32       count++;
  33     }
  34   return count;
  35 }
  36 libc_hidden_def (__argz_count)
  37 weak_alias (__argz_count, argz_count)