From f2b10177103c7a4354b014ef845b3f823121a420 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Rombauts?= <sebastien.rombauts@gmail.com>
Date: Tue, 5 Mar 2019 00:20:06 +0100
Subject: [PATCH] Add a Statement::Ptr move constructor to fix leak because of
 ref counter incremented on copy

---
 include/SQLiteCpp/Statement.h |  6 ++++++
 src/Statement.cpp             | 12 ++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/include/SQLiteCpp/Statement.h b/include/SQLiteCpp/Statement.h
index 199aebd..c5c6e3f 100644
--- a/include/SQLiteCpp/Statement.h
+++ b/include/SQLiteCpp/Statement.h
@@ -654,6 +654,12 @@ private:
         Ptr(sqlite3* apSQLite, std::string& aQuery);
         // Copy constructor increments the ref counter
         Ptr(const Ptr& aPtr);
+
+#if __cplusplus >= 201103L || (defined(_MSC_VER) && _MSC_VER >= 1600)
+        // Move constructor
+        Ptr(Ptr&& aPtr);
+#endif
+
         // Decrement the ref counter and finalize the sqlite3_stmt when it reaches 0
         ~Ptr();
 
diff --git a/src/Statement.cpp b/src/Statement.cpp
index a890697..1dd9bdf 100644
--- a/src/Statement.cpp
+++ b/src/Statement.cpp
@@ -456,6 +456,18 @@ Statement::Ptr::Ptr(const Statement::Ptr& aPtr) :
     ++(*mpRefCount);
 }
 
+#if __cplusplus >= 201103L || (defined(_MSC_VER) && _MSC_VER >= 1600)
+Statement::Ptr::Ptr(Ptr&& aPtr) :
+    mpSQLite(aPtr.mpSQLite),
+    mpStmt(aPtr.mpStmt),
+    mpRefCount(aPtr.mpRefCount)
+{
+    aPtr.mpSQLite = NULL;
+    aPtr.mpStmt = NULL;
+    aPtr.mpRefCount = NULL;
+}
+#endif 
+
 /**
  * @brief Decrement the ref counter and finalize the sqlite3_stmt when it reaches 0
  */