Yaw, Pitch and Roll with D 2.0

[Danny Arends]

On Saturday, 1 September 2012 at 00:47:20 UTC, bearophile wrote:
> Danny Arends:
>
>> Another post: http://www.dannyarends.nl/?viewDetailed=00030
>
> pure mat!(T)[3][] gen_rotationmatrices(T = float)(){
>
> I suggest to write something like this (note the casing and 
> other details):
>
> Mat!T[3][] genRotationMatrices(T = float)() pure {
>

Again many thanks for the feedback.
I'll fix this indeed :)

>
> tmp += mixin('A[i][k] '~op~' B[k][j]');
>
> This seems OK, but it looks a bit convoluted. Maybe something 
> like this works (untested):
>
> tmp += A[i][k].opBinary!op(B[k][j]);
>
>

I'll test it, though I wanted to show off the mixin concept, I 
put a hyper link to the Dlang information page about mixins. So 
that people can read up on what they are.

>
> pure auto yaw(int deg){
>    deg = degreeloop(deg);
>    return cast(matrix)rmatrix[deg][YAW];
> }
>
> I suggest generally to try to avoid casts, where possible.
>

Do you have a suggestion to get around this cast ?

> Bye,
> bearophile

Gr,
Danny Arends