[vsipl++] patch: Preallocate FFT buffers in workspace

[Jules Bergmann]

Stefan Seefeld wrote:
> The attached patch lets workspaces pre-allocate memory potentially to
> be used in the call operators.
> It also contains a fix for the 1D c->r dft failure, reported earlier
> (thanks Jules !).
> 
> Ok to checkin ?

This looks good, please check it in. -- Jules

-- 
Jules Bergmann
CodeSourcery
jules at codesourcery.com
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