* lisp/fringe.el (fringe-mode): Doc fix.

* src/window.h (struct window): Change type of 'fringes_outside_margins'
to bitfield.  Fix comment.  Adjust users accordingly.
(struct window): Change type of 'window_end_bytepos' to ptrdiff_t.
Adjust comment.
* src/xdisp.c (try_window_id): Change type of 'first_vpos' and 'vpos'
to ptrdiff_t.

1 files changed, 5 insertions, 4 deletions

diff --git a/src/window.c b/src/window.c
index 9d78a3efa60..7691eb4dca9 100644
--- a/src/window.c
+++ b/src/window.c
@@ -5542,7 +5542,7 @@ the return value is nil.  Otherwise the value is t.  */)
           w->right_margin_cols = p->right_margin_cols;
           w->left_fringe_width = p->left_fringe_width;
           w->right_fringe_width = p->right_fringe_width;
-          w->fringes_outside_margins = p->fringes_outside_margins;
+          w->fringes_outside_margins = !NILP (p->fringes_outside_margins);
           w->scroll_bar_width = p->scroll_bar_width;
           w->vertical_scroll_bar_type = p->vertical_scroll_bar_type;
           w->dedicated = p->dedicated;
@@ -5858,7 +5858,7 @@ save_window_save (Lisp_Object window, struct Lisp_Vector *vector, int i)
       p->right_margin_cols = w->right_margin_cols;
       p->left_fringe_width = w->left_fringe_width;
       p->right_fringe_width = w->right_fringe_width;
-      p->fringes_outside_margins = w->fringes_outside_margins;
+      p->fringes_outside_margins = w->fringes_outside_margins ? Qt : Qnil;
       p->scroll_bar_width = w->scroll_bar_width;
       p->vertical_scroll_bar_type = w->vertical_scroll_bar_type;
       p->dedicated = w->dedicated;
@@ -6095,6 +6095,7 @@ display marginal areas and the text area.  */)
   (Lisp_Object window, Lisp_Object left_width, Lisp_Object right_width, Lisp_Object outside_margins)
 {
   struct window *w = decode_window (window);
+  int outside = !NILP (outside_margins);
 
   if (!NILP (left_width))
     CHECK_NATNUM (left_width);
@@ -6105,11 +6106,11 @@ display marginal areas and the text area.  */)
   if (FRAME_WINDOW_P (WINDOW_XFRAME (w))
       && (!EQ (w->left_fringe_width, left_width)
           || !EQ (w->right_fringe_width, right_width)
-          || !EQ (w->fringes_outside_margins, outside_margins)))
+          || w->fringes_outside_margins != outside))
     {
       w->left_fringe_width = left_width;
       w->right_fringe_width = right_width;
-      w->fringes_outside_margins = outside_margins;
+      w->fringes_outside_margins = outside;
 
       adjust_window_margins (w);