diff options
Diffstat (limited to 'screen-display.c')
| -rw-r--r-- | screen-display.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/screen-display.c b/screen-display.c index e1c1bc60..ff350a56 100644 --- a/screen-display.c +++ b/screen-display.c @@ -1,4 +1,4 @@ -/* $Id: screen-display.c,v 1.5 2007-11-21 22:20:44 nicm Exp $ */ +/* $Id: screen-display.c,v 1.6 2007-11-24 12:33:56 nicm Exp $ */ /* * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net> @@ -260,6 +260,8 @@ screen_display_insert_lines(struct screen *s, u_int py, u_int ny) if (py + ny > screen_last_y(s)) ny = screen_last_y(s) - py; + if (ny == 0) + return; /* * Insert range of ny lines at py: @@ -295,6 +297,8 @@ screen_display_insert_lines_region(struct screen *s, u_int py, u_int ny) if (py + ny > s->rlower) ny = s->rlower - py; + if (ny == 0) + return; /* * Insert range of ny lines at py: @@ -330,6 +334,8 @@ screen_display_delete_lines(struct screen *s, u_int py, u_int ny) if (py + ny > screen_last_y(s)) ny = screen_last_y(s) - py; + if (ny == 0) + return; /* * Delete range of ny lines at py: @@ -365,6 +371,8 @@ screen_display_delete_lines_region(struct screen *s, u_int py, u_int ny) if (py + ny > s->rlower) ny = s->rlower - py; + if (ny == 0) + return; /* * Delete range of ny lines at py: |