From e2452ee13d54faefdfe2a98caa87202cb9161dac Mon Sep 17 00:00:00 2001
From: wang-bin <wbsecg1@gmail.com>
Date: Sat, 22 Nov 2014 22:02:52 +0800
Subject: [PATCH] virtual dtors

---
 src/cuda/cuda_api.h    | 2 +-
 src/subtitle/ass_api.h | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/cuda/cuda_api.h b/src/cuda/cuda_api.h
index a1216156..1f80f0ca 100644
--- a/src/cuda/cuda_api.h
+++ b/src/cuda/cuda_api.h
@@ -49,7 +49,7 @@
 class cuda_api {
 public:
     cuda_api();
-    ~cuda_api();
+    virtual ~cuda_api();
     bool isLoaded() const;
 #if !NV_CONFIG(DLLAPI_CUDA) && !defined(CUDA_LINK)
     ////////////////////////////////////////////////////
diff --git a/src/subtitle/ass_api.h b/src/subtitle/ass_api.h
index 6d82297c..14a92602 100644
--- a/src/subtitle/ass_api.h
+++ b/src/subtitle/ass_api.h
@@ -33,8 +33,8 @@ class api
 {
 public:
     api();
-    ~api();
-    bool loaded() const;
+    virtual ~api();
+    virtual bool loaded() const; // user may inherits multiple api classes: final::loaded() { return base1::loaded() && base2::loaded();}
 #ifndef CAPI_LINK_ASS
 // mkapi code generation BEGIN
     int ass_library_version();