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- To: eigen@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [eigen] 3.3-alpha1 released!
- From: Sergiu Dotenco <sergiu.dotenco@xxxxxxxxx>
- Date: Mon, 7 Sep 2015 14:53:47 +0200
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On 9/7/2015 11:20 AM, Gael Guennebaud wrote:
>
>
> On Sun, Sep 6, 2015 at 11:03 PM, Gael Guennebaud
> <gael.guennebaud@xxxxxxxxx <mailto:gael.guennebaud@xxxxxxxxx>> wrote:
>
>
> Hi Sergiu,
>
> thank you for the feedback, I can reproduce, and the "problem" is
> that all decomposition constructors have been made explicit. I think
> that the proper fix is to make such constructor completely generic
> to accept any EigenBase<> object. Same for the compute() method.
> This way some temporaries will be avoided when passing expressions.
>
>
> Done: https://bitbucket.org/eigen/eigen/commits/bd2219a74c96/
Thanks Gael.
Regarding PermutationMatrix, there is a warning caused by
is_convertible_impl template struct due to an int being converted to
bool and causing warning C4800 (forcing value to bool 'true' or 'false'
(performance warning) at Eigen/src/Core/util/Meta.h:101). I had to dig
through the huge stack of diagnostics to locate the problem source.