From d55638362727fd03d0ad97f9fe937984f9456e1b Mon Sep 17 00:00:00 2001
From: Hao Wu <hao.a.wu@intel.com>
Date: Mon, 10 Oct 2016 20:40:38 +0800
Subject: [PATCH 1/1] BaseTools/VfrCompile/Pccts: Add virtual destructor for
 class DLGInputStream

Class DLGInputStream defined in DLexerBase.h has a virtual method but no
virtual destructor.

This commit add an empty virtual destructor to avoid potential
memory/resource leak when an object of a class derived from class
DLGInputStream is deleted through a pointer to the DLGInputStream class.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
---
 BaseTools/Source/C/VfrCompile/Pccts/h/DLexerBase.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/BaseTools/Source/C/VfrCompile/Pccts/h/DLexerBase.h b/BaseTools/Source/C/VfrCompile/Pccts/h/DLexerBase.h
index 667ecfd81a..b9ca311baa 100644
--- a/BaseTools/Source/C/VfrCompile/Pccts/h/DLexerBase.h
+++ b/BaseTools/Source/C/VfrCompile/Pccts/h/DLexerBase.h
@@ -57,6 +57,7 @@ public:
 class DllExportPCCTS DLGInputStream {
 public:
 	virtual int nextChar() = 0;
+    virtual ~DLGInputStream() {};
 };
 
 /* Predefined char stream: Input from FILE */
-- 
2.39.2