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(try_window_id): Recompute unchanged information if

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it is invalid.
This commit is contained in:
Gerd Moellmann 2000-03-05 10:21:53 +00:00
parent 64d739c445
commit 28ee91c0e5
1 changed files with 3 additions and 5 deletions
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8
src/xdisp.c
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@ -10034,7 +10034,9 @@ try_window_id (w)
only if buffer has really changed. The reason is that the gap is
initially at Z for freshly visited files. The code below would
set end_unchanged to 0 in that case. */
if (MODIFF > SAVE_MODIFF)
if (MODIFF > SAVE_MODIFF
/* This seems to happen sometimes after saving a buffer. */
|| BEG_UNCHANGED + END_UNCHANGED > Z_BYTE)
{
if (GPT - BEG < BEG_UNCHANGED)
BEG_UNCHANGED = GPT - BEG;
@ -10042,10 +10044,6 @@ try_window_id (w)
END_UNCHANGED = Z - GPT;
}
/* Some strange bug seems to be causing that to happen sometimes. */
if (BEG_UNCHANGED + END_UNCHANGED > Z_BYTE)
abort ();
/* If window starts after a line end, and the last change is in
front of that newline, then changes don't affect the display.
This case happens with stealth-fontification. */