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From: John Gordon <gordon@panix.com>
Newsgroups: comp.lang.python
Subject: Re: ctypes - python2.7.3 vs python3.2.3
Date: Tue, 28 Aug 2012 21:51:05 +0000 (UTC)
Organization: PANIX Public Access Internet and UNIX, NYC
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In <18eb8025-7545-4d10-9e76-2e41deaadb69@googlegroups.com> Rolf <rolfb@personalized-books.com> writes:

> uint32_t myfunction (char ** _mydata)
> {
>    char mydata[16];

>    strcpy(mydata, "Hello Dude!");

>    *_mydata = mydata;

>    return 0;
> }

mydata is an auto variable, which goes out of scope when myfunction()
exits.  *_mydata ends up pointing to garbage.

-- 
John Gordon                   A is for Amy, who fell down the stairs
gordon@panix.com              B is for Basil, assaulted by bears
                                -- Edward Gorey, "The Gashlycrumb Tinies"