File lensfun_fix_memory_leak.patch of Package lensfun

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File lensfun_fix_memory_leak.patch of Package lensfun

commit 3226f7589f476b291e8baad2fcf3593db6f14cf9
Author:     Sebastian Kraft <mail@sebastiankraft.net>
AuthorDate: Sat Jul 22 19:34:34 2017 +0200
Commit:     Sebastian Kraft <mail@sebastiankraft.net>
CommitDate: Sat Jul 22 19:34:34 2017 +0200

Add a virtual destructor to lfCallbackData to avoid memory leak in derived classes
---
 include/lensfun/lensfun.h.in | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/lensfun/lensfun.h.in b/include/lensfun/lensfun.h.in
index ee9cf41..ec87b3c 100644
--- a/include/lensfun/lensfun.h.in
+++ b/include/lensfun/lensfun.h.in
@@ -1909,18 +1909,22 @@ typedef void (*lfModifyColorFunc) (void *data, float x, float y,
 typedef void (*lfModifyCoordFunc) (void *data, float *iocoord, int count);
 
 // @cond
-    
+#ifdef __cplusplus
+
 /// Common ancestor for lfCoordCallbackData and lfColorCallbackData
 struct lfCallbackData
 {
     int priority;
     void *data;
     size_t data_size;
+
+    virtual ~lfCallbackData() {};
 };
 
 // A test point in the autoscale algorithm
 typedef struct { float angle, dist; } lfPoint;
 
+#endif
 // @endcond
 
 /**

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File lensfun_fix_memory_leak.patch of Package lensfun

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