Merge pull request #1808 from QiJune/feature/fix_build_error_with_clang

QiJune · web-flow · commit fb05a73186b3 · 2017-04-18T16:02:37.000+08:00
fix build error with clang
diff --git a/paddle/gserver/gradientmachines/GradientMachine.h b/paddle/gserver/gradientmachines/GradientMachine.h
@@ -134,9 +134,7 @@ class GradientMachine {
     backward(callback);
   }
 
-  virtual Argument getLayerOutput(const std::string& layerName) {
-    return *((Argument*)nullptr);
-  }
+  virtual Argument getLayerOutput(const std::string& layerName) = 0;
 
   // see comment in Layer.h for the function with the same name
   virtual void resetState() {}

Original file line number	Diff line number	Diff line change
`@@ -134,9 +134,7 @@ class GradientMachine {`
`134`	`134`	`backward(callback);`
`135`	`135`	`}`
`136`	`136`
`137`		`- virtual Argument getLayerOutput(const std::string& layerName) {`
`138`		`- return ((Argument)nullptr);`
`139`		`- }`
	`137`	`+ virtual Argument getLayerOutput(const std::string& layerName) = 0;`
`140`	`138`
`141`	`139`	`// see comment in Layer.h for the function with the same name`
`142`	`140`	`virtual void resetState() {}`