Re: [eigen] Interest in more initialisation methods for dynamic-size arrays/matrices

[Christoph Hertzberg <chtz@xxxxxxxxxxxxxxxxxxxxxxxx>]

Am 27.03.2015 um 18:50 schrieb Deanna Hood:
> Has anyone else ever wanted to do
> Array2Xf x = Array2Xf::Random(5);  (i.e. only specify free-dim size)

You can write

  Array2Xf x = Array2Xf::Random(2,5);

and similar for expressions where one parameter is fixed, the other is not.
We intentionally do not allow passing only one parameter here, since it 
is not necessarily evident if this is intended or a programming error.
The redundant parameter is ignored when compiling without assertions 
(and a smart compiler should be able to optimize it away in most other 
cases, as well).

Christoph



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Dipl.-Inf., Dipl.-Math. Christoph Hertzberg
Cartesium 0.049
Universität Bremen
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