glibc/string/argz-count.c

39 lines
1.2 KiB
C

/* Routines for dealing with '\0' separated arg vectors.
Copyright (C) 1995-2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Miles Bader <miles@gnu.ai.mit.edu>
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <argz.h>
#include <string.h>
/* Returns the number of strings in ARGZ. */
size_t
__argz_count (const char *argz, size_t len)
{
size_t count = 0;
while (len > 0)
{
size_t part_len = strlen(argz);
argz += part_len + 1;
len -= part_len + 1;
count++;
}
return count;
}
libc_hidden_def (__argz_count)
weak_alias (__argz_count, argz_count)