From 591c55ff294ee12812e4be1b90f03a093f83a4f5 Mon Sep 17 00:00:00 2001
From: Robin Krahl <robin.krahl@ireas.org>
Date: Thu, 17 Jan 2019 01:58:42 +0000
Subject: Implement std::error::Error for error::CommandError

---
 CHANGELOG.md | 1 +
 src/error.rs | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6c5ebf3..d2982a9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 - Remove the `test-pro` and `test-storage` features.
 - Implement `Display` for `Version`.
 - Introduce `DEFAULT_ADMIN_PIN` and `DEFAULT_USER_PIN` constants.
+- Implement `std::error::Error` for `CommandError`.
 
 # v0.3.4 (2019-01-20)
 - Fix authentication methods that assumed that `char` is signed.
diff --git a/src/error.rs b/src/error.rs
index 6aeeef8..dcaa4d2 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -1,4 +1,5 @@
 use std::borrow;
+use std::error;
 use std::fmt;
 use std::os::raw;
 
@@ -79,6 +80,8 @@ impl CommandError {
     }
 }
 
+impl error::Error for CommandError {}
+
 impl fmt::Display for CommandError {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         write!(f, "{}", self.as_str())
-- 
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