From 491cad95deaf8822d47d37b77982fa7a9de6e2a7 Mon Sep 17 00:00:00 2001
From: RonxBulld <526677628@qq.com>
Date: Mon, 26 Apr 2021 15:05:25 +0800
Subject: [PATCH] Add virtual destructors to Option and Options. Option member
 is set to protected mode.

---
 include/cxxopts.hpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/cxxopts.hpp b/include/cxxopts.hpp
index 694a2b5..fd4f4e6 100644
--- a/include/cxxopts.hpp
+++ b/include/cxxopts.hpp
@@ -1575,6 +1575,8 @@ namespace cxxopts
     {
     }
 
+    virtual ~Option() = default;
+
     std::string opts_;
     std::string desc_;
     std::shared_ptr<const Value> value_;
@@ -1656,6 +1658,8 @@ namespace cxxopts
     {
     }
 
+    virtual ~Options() = default;
+
     Options&
     positional_help(std::string help_text)
     {
@@ -1776,6 +1780,8 @@ namespace cxxopts
     void
     generate_all_groups_help(String& result) const;
 
+    protected:
+
     std::string m_program{};
     String m_help_string{};
     std::string m_custom_help{};