replace uarray with Pod

sub/core/src/data.rs

@@ -45,7 +45,3 @@ pub fn distance(p1: impl As<usize>, p2: impl As<usize>) -> usize {
         Ordering::Equal => 0,
     }
 }
-
-pub fn uarray<const LEN: usize, T: Sized>() -> [T;LEN] {
-    unsafe { MaybeUninit::uninit().assume_init() }
-}

sub/core/src/lib.rs

@@ -5,6 +5,7 @@
 //  Internal modules
 //
 pub mod cast_traits;
+pub mod pod;
 pub mod data;
 pub mod arrays;
 pub mod branching;
@@ -33,7 +34,6 @@ pub mod prelude {
         slicify_mut,
         statify,
         statify_mut,
-        uarray
     };
     pub use crate::arrays::{
         fill_with,
@@ -50,6 +50,7 @@ pub mod prelude {
     pub use crate::time::dur;
     pub use crate::fnv1::*;
     pub use crate::pstruct::struct_offset;
+    pub use crate::pod::Pod;
 }
 
 pub mod public {

sub/core/src/pod.rs

@@ -0,0 +1,20 @@
+use core::mem::MaybeUninit;
+
+/// Plain Old data type
+pub trait Pod: Copy + 'static {
+    fn uninit() -> Self { unsafe { MaybeUninit::uninit().assume_init() } }
+    fn zeroed() -> Self { unsafe { MaybeUninit::zeroed().assume_init() } }
+}
+
+macro_rules! primitive {
+    ($($p:ty),*) => {
+        $(impl Pod for $p {})*
+    }
+}
+
+primitive!(u8, u16, u32, u64, u128);
+primitive!(i8, i16, i32, i64, i128);
+primitive!(f32, f64, usize, isize);
+primitive!(());
+
+impl<const LEN: usize, T: Pod> Pod for [T;LEN] {}