I'd like to stack-allocate an array that will be dynamically sized. Is alloca somewhere in the standard D library? If so, what should I import to have access to it?

On 6/27/13 9:42 PM, Maxime Chevalier-Boisvert wrote:
> I'd like to stack-allocate an array that will be dynamically sized. Is
> alloca somewhere in the standard D library? If so, what should I import
> to have access to it?

Yah, import core.stdc.stdlib.

Andrei

Am Fri, 28 Jun 2013 06:42:31 +0200
schrieb "Maxime Chevalier-Boisvert"
<maximechevalierb@gmail.com>:

> I'd like to stack-allocate an array that will be dynamically sized. Is alloca somewhere in the standard D library? If so, what should I import to have access to it?

As a side note, in Mono-D you can just type alloca, then press Ctrl+Alt+Space and the correct import magically appears at the top of the source file.

-- 
Marco

On Friday, 28 June 2013 at 05:27:54 UTC, Andrei Alexandrescu wrote:
> On 6/27/13 9:42 PM, Maxime Chevalier-Boisvert wrote:
>> I'd like to stack-allocate an array that will be dynamically sized. Is
>> alloca somewhere in the standard D library? If so, what should I import
>> to have access to it?
>
> Yah, import core.stdc.stdlib.
>
> Andrei

Thank you good sir :)

Am 28.06.2013 06:42, schrieb Maxime Chevalier-Boisvert:
> I'd like to stack-allocate an array that will be dynamically sized. Is
> alloca somewhere in the standard D library? If so, what should I import
> to have access to it?

The last time I checked alloca did not work well together with execptions. Whenever a exception whas thrown thourgh a stack frame which used alloca the app would crash. (on dmd Windows 64 bit, which uses the same exception mechanism as the linux versions of dmd)


-- 
Kind Regards
Benjamin Thaut

Benjamin Thaut:

> The last time I checked alloca did not work well together with execptions. Whenever a exception whas thrown thourgh a stack frame which used alloca the app would crash. (on dmd Windows 64 bit, which uses the same exception mechanism as the linux versions of dmd)

Is this in Bugzilla?

Bye,
bearophile

Am 28.06.2013 20:01, schrieb bearophile:
> Benjamin Thaut:
>
>> The last time I checked alloca did not work well together with
>> execptions. Whenever a exception whas thrown thourgh a stack frame
>> which used alloca the app would crash. (on dmd Windows 64 bit, which
>> uses the same exception mechanism as the linux versions of dmd)
>
> Is this in Bugzilla?
>
> Bye,
> bearophile

Yes, its a pretty old bug too:

http://d.puremagic.com/issues/show_bug.cgi?id=3753

-- 
Kind Regards
Benjamin Thaut