Demonstrate working with uninitialized memory

1 files changed, 9 insertions, 0 deletions

diff --git a/src/main.rs b/src/main.rs
index ccf5705..655c906 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,5 @@
+use std::mem::MaybeUninit;
+
 use mdarray::{view, tensor, Slice, Dim, Const, expr::Expression};
 use mdarray as md;
 
@@ -45,6 +47,13 @@ fn main() {
     let d = d.reshape(&[2; 7]);
     let d = d.permute(&[6, 5, 4, 3, 2, 1, 0]);
 
+    // Working with uninitialized memory.
+    let mut e = tensor![[MaybeUninit::<f64>::uninit(); 3]; 3];
+    for (i, val) in e.iter_mut().enumerate() {
+        val.write(i as f64);
+    }
+    let _ = unsafe { e.assume_init() };
+
     // Indexing
     for i in 0..2 {
         let index = [0, i, 0, 0, i, 0, 0];