helper function vec_to_array

src/util.rs

@@ -43,6 +43,13 @@ macro_rules! utf8_to_utf16_array {
     }
 }
 
+pub fn vec_to_array<T: Default + Copy, const N: usize>(vec: Vec<T>) -> [T; N] {
+    let mut result: [T; N] = [T::default(); N];
+    for (i, v) in vec.into_iter().enumerate() {
+        result[i] = v
+    }
+    result
+}
 
 #[cfg(test)]
 mod test {