From a906a8a8055b4ba3c24083a1ff8638cc6104a22d Mon Sep 17 00:00:00 2001
From: Yu Shi <shiyu_k1994@qq.com>
Date: Mon, 10 Jul 2023 06:01:22 +0000
Subject: [PATCH] virtual destructor for gradient discretizer

---
 src/treelearner/gradient_discretizer.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/treelearner/gradient_discretizer.hpp b/src/treelearner/gradient_discretizer.hpp
index 352788f7d093..f6d3e8939477 100644
--- a/src/treelearner/gradient_discretizer.hpp
+++ b/src/treelearner/gradient_discretizer.hpp
@@ -30,7 +30,7 @@ class GradientDiscretizer {
     stochastic_rounding_ = stochastic_rounding;
   }
 
-  ~GradientDiscretizer() {}
+  virtual ~GradientDiscretizer() {}
 
   virtual void DiscretizeGradients(
     const data_size_t num_data,