From 89351e448459c5c0bf429f529860cd64d4d5e609 Mon Sep 17 00:00:00 2001
From: Anton Kolesnyk <41349689+antkmsft@users.noreply.github.com>
Date: Fri, 18 Dec 2020 16:42:00 -0800
Subject: [PATCH] AuthenticationException: derives from std::exception (#1222)

Closes #1178
---
 .../azure-core/inc/azure/core/credentials.hpp   | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/sdk/core/azure-core/inc/azure/core/credentials.hpp b/sdk/core/azure-core/inc/azure/core/credentials.hpp
index aafa47fae..928b70281 100644
--- a/sdk/core/azure-core/inc/azure/core/credentials.hpp
+++ b/sdk/core/azure-core/inc/azure/core/credentials.hpp
@@ -11,9 +11,9 @@
 #include "azure/core/context.hpp"
 
 #include <chrono>
+#include <exception>
 #include <memory>
 #include <mutex>
-#include <stdexcept>
 #include <string>
 #include <utility>
 #include <vector>
@@ -64,13 +64,22 @@ namespace Azure { namespace Core {
   /**
    * @brief An exception that gets thrown when authentication error occurs.
    */
-  class AuthenticationException : public std::runtime_error {
+  class AuthenticationException : public std::exception {
+    std::string m_message;
+
   public:
     /**
      * @brief Construct with message string.
      *
-     * @param msg Message string.
+     * @param message Message string.
      */
-    explicit AuthenticationException(std::string const& msg) : std::runtime_error(msg) {}
+    explicit AuthenticationException(std::string message) : m_message(std::move(message)) {}
+
+    /**
+     * Get the explanatory string.
+     *
+     * @return C string with explanatory information.
+     */
+    char const* what() const noexcept override { return m_message.c_str(); }
   };
 }} // namespace Azure::Core