implement display for u256

laizy · Sep 21, 2020 · b056fd5 · b056fd5
1 parent 0a6a4e1
commit b056fd5
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/ontio-std/src/types/num.rs b/ontio-std/src/types/num.rs
@@ -265,13 +265,19 @@ impl U256 {
         U256(u256::U256::from_little_endian(slice))
     }
 
-    pub fn to_le_bytes(self) -> [u8; 32] {
+    pub fn to_le_bytes(&self) -> [u8; 32] {
         let mut buf = [0; 32];
         self.0.to_little_endian(&mut buf);
         buf
     }
 }
 
+impl Display for U256 {
+    fn fmt(&self, f: &mut Formatter<'_>) -> Result {
+        write!(f, "{}", self.0)
+    }
+}
+
 impl From<u128> for U256 {
     fn from(val: u128) -> Self {
         Self(From::from(val))