I am working on some software where I am managing a buffer of floats in a Vec<T> where T is either an f32 or f64. I sometimes need to interpret this buffer, or sections of it, as a mathematical vector. To this end, I am taking advantage of MatrixSlice and friends in nalgebra.
I can create a DVectorSliceMut, for example, the following way
fn as_vector<'a>(slice: &'a mut [f64]) -> DVectorSliceMut<'a, f64> {
DVectorSliceMut::from(slice)
}
However, sometimes I need to later extract the original slice from the DVectorSliceMut with the original lifetime 'a. Is there a way to do this?
The StorageMut trait has a as_mut_slice member function, but the lifetime of the returned slice is the lifetime of the reference to the Storage implementor, not the original slice. I am okay with a solution which consumes the DVectorSliceMut if necessary.
Update: Methods into_slice and into_slice_mut have been respectively added to the SliceStorage and SliceStorageMut traits as of nalgebra v0.28.0.
Methods into_slice and into_slice_mut which return the original slice have been respectively added to the SliceStorage and SliceStorageMut traits as of nalgebra v0.28.0.