Derive Macro Soa 

#[derive(Soa)]

Build a fixed sized SoA (Structure of Arrays) from a struct. The outputted SoA will be suitable for in place storage in messages and should be easier for the compiler to vectorize.

for example:

#[derive(Soa)]
struct MyStruct {
   a: i32,
   b: f32,
}

will generate:

pub struct MyStructSoa<const N: usize> {
    pub a: [i32; N],
    pub b: [f32; N],
}

You can then use the generated struct to store multiple instances of the original struct in an SoA format.

// makes an SOA with a default value
let soa1: MyStructSoa<8> = XyzSoa::new(MyStruct{ a: 1, b: 2.3 });

Then you can access the fields of the SoA as slices:

let a = soa1.a();
let b = soa1.b();

You can also access a range of the fields:

let a = soa1.a_range(0..4);
let b = soa1.b_range(0..4);

You can also modify the fields of the SoA:

soa1.a_mut()[0] = 42;
soa1.b_mut()[0] = 42.0;

You can also modify a range of the fields:

soa1.a_range_mut(0..4)[0] = 42;
soa1.b_range_mut(0..4)[0] = 42.0;

You can also apply a function to all the fields of the SoA:

soa1.apply(|a, b| {
   (a + 1, b + 1.0)
});