From 66f9951d7087801cd4a2d5aa360551029b6835b7 Mon Sep 17 00:00:00 2001
From: Jiaming Yuan <jm.yuan@outlook.com>
Date: Sat, 15 Jun 2019 11:21:50 +0800
Subject: [PATCH] Mark SparsePageDmatrix destructor default. (#4568)

---
 src/data/sparse_page_dmatrix.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/data/sparse_page_dmatrix.h b/src/data/sparse_page_dmatrix.h
index 1e0879609..420c355d1 100644
--- a/src/data/sparse_page_dmatrix.h
+++ b/src/data/sparse_page_dmatrix.h
@@ -24,6 +24,7 @@ class SparsePageDMatrix : public DMatrix {
   explicit SparsePageDMatrix(std::unique_ptr<DataSource>&& source,
                              std::string cache_info)
       : row_source_(std::move(source)), cache_info_(std::move(cache_info)) {}
+  virtual ~SparsePageDMatrix() = default;
 
   MetaInfo& Info() override;