setting statically sized multi-dimensional arrays

[Ary Borenszweig]

Spacen Jasset escribió:
> I have function below where I try to set a float[4][4] using array 
> syntax. This doesn't work. Am I doing it wrongly, or is this not 
> supported in dmd version 1? I seem to remember seeing something about 
> this but can't remember where.
> 
> 
> 
> void MakeRotationAboutX(float[4][4] m, float angle)
> {
>     m[] = [[1f, 0, 0, 0],
>            [0, cos(angle * PI / 180), sin(angle * PI / 180), 0],
>            [0, -sin(angle * PI / 180), cos(angle * PI / 180), 0],
>            [0, 0, 0, 1]];
> }
> 
> main.d:501: Error: cannot implicitly convert expression
> ..lots of stuff..
> of type float[][4u] to float[4u]
> Command /usr/bin/rebuild returned with code 256, aborting.

Try putting the "f" suffix on the first zeros in the second, third and 
foruth rows, too. It works for me:

import std.math;

void MakeRotationAboutX(float[4][4] m, float angle)
{
     m[] = [[1f, 0, 0, 0],
            [0f, cos(angle * PI / 180), sin(angle * PI / 180), 0],
            [0f, -sin(angle * PI / 180), cos(angle * PI / 180), 0],
            [0f, 0, 0, 1]];
}