Tuple layout

tuple_layout.rs

#[repr(C)]
struct Foo(f32, f32, f32);

fn main() {
    let a = [Foo(1.0,2.0,3.0), Foo(4.0,5.0,6.0)];
    let b = [1.0f32,2.0,3.0,4.0,5.0,6.0];
    let c = [(1.0f32,2.0f32,3.0f32), (4.0f32,5.0f32,6.0f32)];
    let amem = unsafe { std::slice::from_raw_parts((&a as *const _) as *const u8, std::mem::size_of_val(&a) )};
    let bmem = unsafe { std::slice::from_raw_parts((&b as *const _) as *const u8, std::mem::size_of_val(&b) )};
    let cmem = unsafe { std::slice::from_raw_parts((&c as *const _) as *const u8, std::mem::size_of_val(&c) )};
    
    // These are all equal
    println!("{:?}", amem);
    println!("{:?}", bmem);
    println!("{:?}", cmem);
}