removed dependency on std

rdraught/src/lib.rs

@@ -1,4 +1,4 @@
-//#![no_std]
+#![no_std]
 mod board;
 pub mod draughts;
 pub mod position;

rdraught/src/position.rs

@@ -3,11 +3,12 @@ use core::ops::Add;
 use core::ops::Div;
 use core::ops::Mul;
 use core::ops::Sub;
+
 #[derive(Debug, PartialEq, Eq, Clone, Copy)]
 pub struct Position((u8, u8));
 
 impl Display for Position {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
         write!(f, "({}, {})", self.row(), self.col())
     }
 }