[GitHub] [incubator-mxnet] eric-haibin-lin commented on a change in pull request #14911: Use std::exception as the param in engine complete callback

[GitBox <gi...@apache.org>]

eric-haibin-lin commented on a change in pull request #14911: Use std::exception as the param in engine complete callback
URL: https://github.com/apache/incubator-mxnet/pull/14911#discussion_r284482307
 
 

 ##########
 File path: include/mxnet/engine.h
 ##########
 @@ -74,15 +74,15 @@ class CallbackOnComplete {
  public:
   // use implicit copy and assign
   /*! \brief involve the callback */
-  inline void operator()(const dmlc::Error* error = nullptr) const {
+  inline void operator()(const std::exception* error = nullptr) const {
 
 Review comment:
   Is it possible to add a unit test? For example, purposely performing  `nd.ones((1,) + extremely_small_number` to cause `std::stof ` to fail? 

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