yade-dev team mailing list archive

[Jerome Duriez <jerome.duriez@xxxxxxxx>]

> Out of curiosity, do you have concrete usage in mind?
That would be to gather 3 (always positive) indices of some gridpoint 
(i,j,k)

> What would be the return type of the difference operator between two 
> Vector3ui?
Indeed, I did not really think about it.. But in my mind, that would be 
the job of Eigen (which seems to handle unsigned types [*] ?) to decide, 
and I would just introduce a new typedef.


Actually my question came from the fear of falling under our recently 
strengthened warning=error compilation policy, through possible signed 
<-> unsigned conversions.

But I eventually did not face any of those in the meantime (while using 
classical Vector3i and other unsigned int variables), so maybe there was 
no point...


Thanks,

Jérôme


[*] 
http://eigen.tuxfamily.org/index.php?title=Versatility#Eigen_supports_many_numeric_types

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On 08/04/2020 16:49, Bruno Chareyre wrote:
> Hi Jérôme,
> Out of curiosity, do you have concrete usage in mind?
> What would be the return type of the difference operator between two 
> Vector3ui?
> Cheers
> Bruno
>
> On Wed, 8 Apr 2020 at 16:10, Jerome Duriez <jerome.duriez@xxxxxxxx 
> <mailto:jerome.duriez@xxxxxxxx>> wrote:
>
>     Hi,
>
>     It seems, in [*], we're not using typedef'd types for possible Eigen
>     Vector3<unsigned int>("Vector3ui" maybe).
>
>     Would you like / object to have one ?
>
>
>     [*]
>     https://gitlab.com/yade-dev/trunk/-/blob/master/lib/high-precision/MathEigenTypes.hpp
>
>     Jérôme
>
>     ------
>     Chargé de Recherche / Research Associate
>     Inrae, RECOVER
>     3275 route Cezanne – CS 40061 13182 Aix-en-Provence Cedex 5 FRANCE
>     +33 (0)4 42 66 99 21
>     https://www6.paca.inrae.fr/recover/membres-du-laboratoire/pages-personnelles/jerome-duriez
>
>
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