From ad93c038511f17b5b163e368f3613a63a639f1dd Mon Sep 17 00:00:00 2001
From: Marek Habersack <grendel@twistedcode.net>
Date: Sat, 21 Mar 2020 22:35:41 +0100
Subject: [PATCH] [C++] API sync

Added:

  * Plane: mergedown (`ncplane_mergedown`)
---
 include/ncpp/Plane.hh | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/include/ncpp/Plane.hh b/include/ncpp/Plane.hh
index 1a7823d07..ac053fda0 100644
--- a/include/ncpp/Plane.hh
+++ b/include/ncpp/Plane.hh
@@ -303,6 +303,20 @@ namespace ncpp
 			return move_above (*above);
 		}
 
+		bool mergedown (Plane &dst) const
+		{
+			if (plane == dst.plane)
+				throw invalid_argument ("'dst' must refer to a differnt plane than the one this method is called on");
+			return ncplane_mergedown (plane, dst.plane) != -1;
+		}
+
+		bool mergedown (Plane *dst) const
+		{
+			if (dst == nullptr)
+				throw invalid_argument ("'dst' must be a valid pointer");
+			return mergedown (*dst);
+		}
+
 		bool cursor_move (int y, int x) const noexcept
 		{
 			return ncplane_cursor_move_yx (plane, y, x) != -1;