[GitHub] [incubator-mxnet] leezu commented on a change in pull request #17530: Add deferred compute support

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

leezu commented on a change in pull request #17530: Add deferred compute support
URL: https://github.com/apache/incubator-mxnet/pull/17530#discussion_r379009156
 
 

 ##########
 File path: include/mxnet/imperative.h
 ##########
 @@ -88,6 +89,77 @@ class Imperative {
              && info.out_grads.size() == 1;
     }
   };
+
+  /*! \brief DCInfo datastructure to enable deferred computation */
+  class DCInfo {
+   public:
+    DCInfo() {
+      // Default constructor provided for the sake of any.h. Should not be used.
+      throw std::invalid_argument("Unsupported default constructor");
+    }
 
 Review comment:
   Good catch. This was only needed in an earlier, unpublished version of this PR.

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