[Insight-developers] Using alloca

[Sean McBride]

On Tue, 12 Mar 2013 08:54:43 -0400, Bradley Lowekamp said:

>I am thinking about using the "alloca" function in some code I'm working
>on for ITK, and wonder what other people think of it or others experience...
>
>From the BSD Library Functions Manual:
>
>DESCRIPTION
>     The alloca() macro allocates size bytes of space in the stack frame
>of the caller.  This temporary space is automatically freed on return.
>
>I am planning on using it for some dimension sized array in compiled
>templateless code, in lieu of C99 dynamic stack based arrays.

Given that ITK has no use of alloca() currently, I'd be loathe to add it, personally.

Does ITK currently use C99 VLAs anywhere?  If so, that would be a precedent, and I'd stick with that.

Cheers,

-- 
____________________________________________________________
Sean McBride, B. Eng                 sean at rogue-research.com
Rogue Research                        www.rogue-research.com 
Mac Software Developer              Montréal, Québec, Canada