X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FUndo.h;h=b1908a25b322d798980faca3a803c001cf56f8cd;hb=4300feb8595c8542050adedf664cd4bfda7ede12;hp=59f3ca44fc93a58975ee459ffc9440e5889a5ac1;hpb=cc241bdaaf0f63daf5e1afb4d8623a2f075943e5;p=lyx.git

diff --git a/src/Undo.h b/src/Undo.h
index 59f3ca44fc..b1908a25b3 100644
--- a/src/Undo.h
+++ b/src/Undo.h
@@ -135,15 +135,9 @@ private:
  */
 class UndoGroupHelper {
 public:
-	UndoGroupHelper(Buffer * buf) : buffer_(0)
-	{
-		resetBuffer(buf);
-	}
+	UndoGroupHelper(Buffer * buf = 0);
 
-	~UndoGroupHelper()
-	{
-		resetBuffer(0);
-	}
+	~UndoGroupHelper();
 
 	/** Close the current undo group if necessary and create a new one
 	 * for buffer \c buf.
@@ -151,7 +145,8 @@ public:
 	void resetBuffer(Buffer * buf);
 
 private:
-	Buffer * buffer_;
+	class Impl;
+	Impl * const d;
 };