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Re: getopt function

From: Kai Ruottu <karuottu at mbnet dot fi>
To: Dima Sorkin <dima dot sorkin at gmail dot com>
Cc: gcc-help at gcc dot gnu dot org
Date: Wed, 30 Aug 2006 23:44:00 +0300
Subject: Re: getopt function
References: <e40293600608301142m70b2a6d9q6e3951269a4feb9c@mail.gmail.com>

Dima Sorkin wrote :

1) A question on libc function:
int getopt(int argc, char * const argv[],
                 const char *optstring);
The fact that it declares "char * const argv[]" and not
"const char * const argv[]" means that it changes argv ?

http://www.gnu.org/software/libc/manual/html_node/Getopt.html#Getopt

2) Is libc containing POSIX functions shipped
with gcc,

No

or it is a completely different project ?


Yes and No... The GNU C library is working only with Linux.  Not ported for
Solaris2, AIX, HP-UX, SVR4,... Most platforms provide their own C libraries
and these are proprietary or custom (sources maybe available) ones.

References:
- getopt function
  - From: Dima Sorkin

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