return Qnil;
/* If that info is not correct, calculate afresh */
+ /* BUG FIX for the 7th arg (TOHPOS).
+
+ '0' is harmless, however, ' - (1 << (BITS_PER_SHORT - 1))' is
+ more appropriate here. In case of HSCROLL > 0, this can avoid
+ needless calculation done until (HPOS == 0).
+
+ We want to determine if the position POSINT is in HEIGHT or
+ not. We don't have to do calculation until (HPOS == 0). We
+ can stop it when VPOS goes beyond HEIGHT. */
posval = *compute_motion (top, 0, (hscroll ? 1 - hscroll : 0), 0,
- posint, height, 0,
+ posint, height, - (1 << (BITS_PER_SHORT - 1)),
window_internal_width (w) - 1,
hscroll, 0, w);
Fset_marker (w->start, make_number (pos.bufpos), w->buffer);
w->start_at_line_beg = ((pos.bufpos == BEGV
- || FETCH_CHAR (pos.bufpos - 1) == '\n') ? Qt
+ || FETCH_BYTE (pos.bufpos - 1) == '\n') ? Qt
: Qnil);
/* We need to do this, so that the window-scroll-functions
get called. */
Fset_marker (w->start, make_number (pos.bufpos), w->buffer);
w->start_at_line_beg = ((pos.bufpos == BEGV
- || FETCH_CHAR (pos.bufpos - 1) == '\n')
+ || FETCH_BYTE (pos.bufpos - 1) == '\n')
? Qt : Qnil);
w->force_start = Qt;