Re: [gentoo-user] memset_s

[Jorge Almeida <jjalmeida@gmail.com>]

On Fri, Nov 10, 2017 at 10:52 AM, Marc Joliet <marcec@gmx.de> wrote:
> Am Freitag, 10. November 2017, 10:54:53 CET schrieb Jorge Almeida:
>> I'm trying to use memset_s() but the system (glibc?) doesn't know
>> about it. I also tried to compile against musl, same result.
>>


> It seems as though it is simply not implemented, I found a variety of links
> that all support this:
>
> https://stackoverflow.com/a/40162721
>
> https://stackoverflow.com/questions/38322363/when-will-the-safe-string-functions-of-c11-be-part-of-glibc
>
> https://gcc.gnu.org/wiki/C11Status (which states that Annex K is not
> implemented)
>
> http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1967.htm
>
OK, thanks. The last link even suggests that Annex K should be
deprecated. I suppose this people don't care about security at all.

Of course, what would really solve the optimize-into-oblivion problem
is a pragma that when invoked on a particular block of code (maybe
only a function definition) would tell the compiler to do what the
programmer says rather than viewing a function as a kind of black box.

Jorge Almeida