From 959137cf615cd26f93024d26a18e38e522388cf1 Mon Sep 17 00:00:00 2001
From: Ethan Pailes <ethanpailes@gmail.com>
Date: Sat, 13 Oct 2018 13:38:39 -0400
Subject: [PATCH] make QrError std::error::Error

---
 src/types.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/types.rs b/src/types.rs
index 1e069e8..b826515 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -41,6 +41,12 @@ impl Display for QrError {
     }
 }
 
+impl ::std::error::Error for QrError {
+    fn description(&self) -> &'static str {
+        "QrError"
+    }
+}
+
 /// `QrResult` is a convenient alias for a QR code generation result.
 pub type QrResult<T> = Result<T, QrError>;