1 files changed, 11 insertions, 0 deletions

diff --git a/src/lib.rs b/src/lib.rs
index ae346a1..36790b7 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -13,6 +13,17 @@ pub enum HexDecodeError {
     InvalidHexCharacter,
 }
 
+impl std::fmt::Display for HexDecodeError {
+    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+        match self {
+            HexDecodeError::InvalidByteCount => write!(f, "Invalid byte count"),
+            HexDecodeError::InvalidHexCharacter => write!(f, "Invalid hex character"),
+        }
+    }
+}
+
+impl std::error::Error for HexDecodeError {}
+
 struct EncodeHexIterSlice<'data_lifetime> {
     //bytes to encode as hex
     data: &'data_lifetime [u8],