Merge pull request #110 from pandoracore/fix/error-derive

Standard error derives

Author: apoelstra

src/error.rs

@@ -18,7 +18,7 @@
 use core::fmt;
 
 /// [bitcoin_hashes] error.
-#[derive(Debug, Copy, Clone, PartialEq, Eq)]
+#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub enum Error {
     /// Tried to create a fixed-length hash from a slice with the wrong size (expected, got).
     InvalidLength(usize, usize),

src/hex.rs

@@ -19,7 +19,7 @@ use core::{fmt, str};
 use Hash;
 
 /// Hex decoding error
-#[derive(Debug, Copy, Clone, PartialEq, Eq)]
+#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub enum Error {
     /// non-hexadecimal character
     InvalidChar(u8),