Improve error message.

Atry · web-flow · commit c103a38557e7 · 2017-08-12T20:39:38.000+08:00
diff --git a/plugins-INDArrayLayers/src/main/scala-2.11/com/thoughtworks/deeplearning/plugins/INDArrayLayers.scala b/plugins-INDArrayLayers/src/main/scala-2.11/com/thoughtworks/deeplearning/plugins/INDArrayLayers.scala
@@ -103,7 +103,8 @@ trait INDArrayLayers extends DoubleLayers with DoubleLiterals with ImplicitsSing
   }
 
   private def autoBroadcastShape(shape1: Array[Int], shape2: Array[Int]): Array[Int] = {
-    require(shape1.length == shape2.length)
+    require(shape1.length == shape2.length,
+            raw"""Cannot broadcast between shape ${shape1.mkString("[", ",", "]")} and ${shape2.mkString("[", ",", "]")}.""")
     shape1.zip(shape2).map {
       case (1, bSize)                       => bSize
       case (aSize, 1)                       => aSize

Original file line number	Diff line number	Diff line change
`@@ -103,7 +103,8 @@ trait INDArrayLayers extends DoubleLayers with DoubleLiterals with ImplicitsSing`
`103`	`103`	`}`
`104`	`104`
`105`	`105`	`private def autoBroadcastShape(shape1: Array[Int], shape2: Array[Int]): Array[Int] = {`
`106`		`- require(shape1.length == shape2.length)`
	`106`	`+ require(shape1.length == shape2.length,`
	`107`	`+ raw"""Cannot broadcast between shape ${shape1.mkString("[", ",", "]")} and ${shape2.mkString("[", ",", "]")}.""")`
`107`	`108`	`shape1.zip(shape2).map {`
`108`	`109`	`case (1, bSize) => bSize`
`109`	`110`	`case (aSize, 1) => aSize`