Unify the implementation of activation operation (#32348)

paddle/fluid/operators/activation_op.h

@@ -455,7 +455,7 @@ struct HardShrinkFunctor : public BaseActivationFunctor<T> {
   void operator()(Device d, X x, Out out) const {
     auto temp1 = x < static_cast<T>(threshold * -1.f);
     auto temp2 = x > static_cast<T>(threshold);
-    out.device(d) = x * (temp1 + temp2).template cast<T>();
+    out.device(d) = x * (temp1 || temp2).template cast<T>();
   }
 };
 
@@ -472,7 +472,7 @@ struct HardShrinkGradFunctor : public BaseActivationFunctor<T> {
   void operator()(Device d, X x, Out out, dOut dout, dX dx) const {
     auto temp1 = x < static_cast<T>(threshold * -1.f);
     auto temp2 = x > static_cast<T>(threshold);
-    dx.device(d) = dout * (temp1 + temp2).template cast<T>();
+    dx.device(d) = dout * (temp1 || temp2).template cast<T>();
   }
 
   static constexpr ActBwdOpFwdDeps FwdDeps() { return kDepX; }