From 214dc882b8650383bb7bd2eae0b20601883e322c Mon Sep 17 00:00:00 2001
From: nishantkr18 <nniishantkumar@gmail.com>
Date: Tue, 12 May 2020 17:37:14 +0530
Subject: [PATCH] applied suggested changes

---
 .../softplus_function.hpp                     | 29 ++++---------------
 1 file changed, 6 insertions(+), 23 deletions(-)

diff --git a/src/mlpack/methods/ann/activation_functions/softplus_function.hpp b/src/mlpack/methods/ann/activation_functions/softplus_function.hpp
index a8a0cf680c..0a60e88dd7 100644
--- a/src/mlpack/methods/ann/activation_functions/softplus_function.hpp
+++ b/src/mlpack/methods/ann/activation_functions/softplus_function.hpp
@@ -52,20 +52,9 @@ class SoftplusFunction
   static double Fn(const double x)
   {
     const double val = std::log(1 + std::exp(x));
-    if (x < DBL_MAX)
-    {
-      if (x > -DBL_MAX)
-      {
-        if (std::isfinite(val))
-          return val;
-        else
-          return x;
-      }
-      else
-        return 0;
-    }
-    else
-      return 1.0;
+    if (std::isfinite(val))
+      return val;
+    return x;
   }
 
   /**
@@ -115,15 +104,9 @@ class SoftplusFunction
   static double Inv(const double y)
   {
     const double val = std::log(std::exp(y) - 1);
-    if (y > 0)
-    {
-      if (std::isfinite(val))
-        return val;
-      else
-        return y;
-    }
-    else
-      return 0;
+    if (std::isfinite(val))
+      return val;
+    return y;
   }
 
   /**