From: Karl Heuer <kwzh@gnu.org>
Date: Mon, 5 Jun 1995 12:35:17 +0000 (+0000)
Subject: (cursor_to, clear_to_end_of_line_raw):
X-Git-Tag: emacs-19.34~3787
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=36cae867b9594d966181c0fd37268e3f6cc0c1a5;p=emacs.git

(cursor_to, clear_to_end_of_line_raw):
If chars_wasted is 0, do nothing.
(clear_end_of_line): Don't die if chars_wasted is 0.
---

diff --git a/src/term.c b/src/term.c
index 6de8227bd22..91ba9866fb3 100644
--- a/src/term.c
+++ b/src/term.c
@@ -577,6 +577,11 @@ cursor_to (row, col)
       return;
     }
 
+  /* Detect the case where we are called from reset_sys_modes
+     and the costs have never been calculated.  Do nothing.  */
+  if (chars_wasted == 0)
+    return;
+
   col += chars_wasted[row] & 077;
   if (curY == row && curX == col)
     return;
@@ -670,6 +675,7 @@ clear_end_of_line (first_unused_hpos)
 {
   static GLYPH buf = SPACEGLYPH;
   if (FRAME_TERMCAP_P (selected_frame)
+      && chars_wasted != 0
       && TN_standout_width == 0 && curX == 0 && chars_wasted[curY] != 0)
     write_glyphs (&buf, 1);
   clear_end_of_line_raw (first_unused_hpos);
@@ -695,6 +701,11 @@ clear_end_of_line_raw (first_unused_hpos)
       return;
     }
 
+  /* Detect the case where we are called from reset_sys_modes
+     and the costs have never been calculated.  Do nothing.  */
+  if (chars_wasted == 0)
+    return;
+
   first_unused_hpos += chars_wasted[curY] & 077;
   if (curX >= first_unused_hpos)
     return;