lanking520 commented on a change in pull request #11126: [MXNET-386] ongoing
maintenance on NDArray
URL: https://github.com/apache/incubator-mxnet/pull/11126#discussion_r192968711
##########
File path:
scala-package/macros/src/main/scala/org/apache/mxnet/NDArrayMacro.scala
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@@ -129,6 +119,8 @@ private[mxnet] object NDArrayMacro {
}
impl += base
})
+ // add default out parameter
+ argDef += "out : Option[NDArray] = None"
Review comment:
The usage is to save memory space, you pass in a pointer and C will store
the value in there...
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