Re: [eigen] Conflict between coeffRef and CppAD

[Christoph Hertzberg <chtz@xxxxxxxxxxxxxxxxxxxxxxxx>]

On 2016-06-22 11:34, Hilario Tomé wrote:
> Dear all,
>
> I am reviving this topic since I didn't manage to solve it, can you give me
> any suggestions to fix it? Gael already suggested a sparse matrix plugin
> that solves the problem for the setFromTriplets method, can something
> similar be done for coeffRef?
>
> This problem still exists with Eigen 3.2.8 and gcc 4.8.4.

We'll probably won't fix this for the 3.2 branch (and if we do, you'd 
need to wait for the next release). I guess, the easiest solution is to 
upgrade to 3.3-beta1.

Christoph




> Best,
>
> On Tue, Apr 14, 2015 at 10:53 AM, Gael Guennebaud <gael.guennebaud@xxxxxxxxx
> > wrote:
>
> > yes, let's go with a value_type alias to Scalar. Even though that's a bit
> > ugly, this will simplify everybody's life!
> >
> > gael.
> >
> > On Mon, Apr 13, 2015 at 5:25 PM, Christoph Hertzberg <
> > chtz@xxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> >
> > > Am 10.04.2015 um 13:47 schrieb Hilario Tomé:
> > >
> > > > I would appreciate if someone could also explain the reason of the
> > > > problem.
> > >
> > >  From looking at the error message, it appears that CppAD adds a
> > > value_type typedef to EigenBase, thus making our SFINAE-mechanism fail.
> > >
> > > I'm tending to agree to simply add a value_type typedef ourselves (Bug
> > > 360), and drop that SFINAE construct.
> > >
> > > Christoph
> > >
> > >
> > > --
> > > ----------------------------------------------
> > > Dipl.-Inf., Dipl.-Math. Christoph Hertzberg
> > > Cartesium 0.049
> > > Universität Bremen
> > > Enrique-Schmidt-Straße 5
> > > 28359 Bremen
> > >
> > > Tel: +49 (421) 218-64252
> > > ----------------------------------------------

--
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