From 5d9ac032dd5c85bd9110e61e9d0f09a79d5a50a4 Mon Sep 17 00:00:00 2001
From: Paul-Nicolas Madelaine <pnm@pnm.tf>
Date: Sat, 29 Nov 2025 14:12:20 +0100
Subject: [PATCH] transparent repr for Bitboard & Position

---
 src/bitboard.rs | 1 +
 src/position.rs | 1 +
 2 files changed, 2 insertions(+)

diff --git a/src/bitboard.rs b/src/bitboard.rs
index dd225fa..3669299 100644
--- a/src/bitboard.rs
+++ b/src/bitboard.rs
@@ -4,6 +4,7 @@ use crate::board::*;
 
 /// A set of squares.
 #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Default)]
+#[repr(transparent)]
 pub struct Bitboard(pub u64);
 
 impl Bitboard {
diff --git a/src/position.rs b/src/position.rs
index 11eaba0..387a82b 100644
--- a/src/position.rs
+++ b/src/position.rs
@@ -57,6 +57,7 @@ use core::ops::ControlFlow;
 /// considered stable.
 #[must_use]
 #[derive(Clone, PartialEq, Eq, PartialOrd, Ord)]
+#[repr(transparent)]
 pub struct Position(Setup);
 
 const PAWN: u8 = Role::Pawn as u8;