# HG changeset patch
# User Bram Moolenaar <bram@vim.org>
# Date 1411490276 -7200
# Node ID fe1827921d50cb59ac680ea13e3f9103cd9db660
# Parent  507e045f8fb19073e53431dd80df1f34a28f1531
updated for version 7.4.458
Problem:    Issue 252: Cursor moves in a zero-height window.
Solution:   Check for zero height. (idea by Christian Brabandt)

diff --git a/src/move.c b/src/move.c
--- a/src/move.c
+++ b/src/move.c
@@ -183,6 +183,18 @@ update_topline()
     if (!screen_valid(TRUE))
 	return;
 
+    /* If the window height is zero just use the cursor line. */
+    if (curwin->w_height == 0)
+    {
+	curwin->w_topline = curwin->w_cursor.lnum;
+	curwin->w_botline = curwin->w_topline;
+	curwin->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP;
+#ifdef FEAT_SCROLLBIND
+	curwin->w_scbind_pos = 1;
+#endif
+	return;
+    }
+
     check_cursor_moved(curwin);
     if (curwin->w_valid & VALID_TOPLINE)
 	return;
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    458,
+/**/
     457,
 /**/
     456,