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Diffstat (limited to 'src/window.c')
-rw-r--r--src/window.c58
1 files changed, 30 insertions, 28 deletions
diff --git a/src/window.c b/src/window.c
index 641f7a397a4..60d17c74de3 100644
--- a/src/window.c
+++ b/src/window.c
@@ -63,7 +63,7 @@ static int displayed_window_lines (struct window *);
static struct window *decode_window (Lisp_Object);
static int count_windows (struct window *);
static int get_leaf_windows (struct window *, struct window **, int);
-static void window_scroll (Lisp_Object, int, int, int);
+static void window_scroll (Lisp_Object, EMACS_INT, int, int);
static void window_scroll_pixel_based (Lisp_Object, int, int, int);
static void window_scroll_line_based (Lisp_Object, int, int, int);
static int freeze_window_start (struct window *, void *);
@@ -127,8 +127,8 @@ static int window_scroll_pixel_based_preserve_x;
static int window_scroll_pixel_based_preserve_y;
/* Same for window_scroll_line_based. */
-static int window_scroll_preserve_hpos;
-static int window_scroll_preserve_vpos;
+static EMACS_INT window_scroll_preserve_hpos;
+static EMACS_INT window_scroll_preserve_vpos;
static struct window *
decode_window (register Lisp_Object window)
@@ -378,7 +378,7 @@ select_window (Lisp_Object window, Lisp_Object norecord, int inhibit_point_swap)
redisplay_window has altered point after scrolling,
because it makes the change only in the window. */
{
- register EMACS_INT new_point = marker_position (w->pointm);
+ register ptrdiff_t new_point = marker_position (w->pointm);
if (new_point < BEGV)
SET_PT (BEGV);
else if (new_point > ZV)
@@ -684,10 +684,10 @@ window so that the location of point moves off-window. */)
(Lisp_Object window, Lisp_Object ncol)
{
struct window *w = decode_window (window);
- int hscroll;
+ ptrdiff_t hscroll;
CHECK_NUMBER (ncol);
- hscroll = max (0, XINT (ncol));
+ hscroll = clip_to_bounds (0, XINT (ncol), PTRDIFF_MAX);
/* Prevent redisplay shortcuts when changing the hscroll. */
if (XINT (w->hscroll) != hscroll)
@@ -1498,7 +1498,8 @@ Return nil if window display is not up-to-date. In that case, use
register struct window *w;
register struct buffer *b;
struct glyph_row *row, *end_row;
- int max_y, crop, i, n;
+ int max_y, crop, i;
+ EMACS_INT n;
w = decode_window (window);
@@ -2566,7 +2567,7 @@ window-start value is reasonable when this function is called. */)
struct window *w, *r, *s;
struct frame *f;
Lisp_Object sibling, pwindow, swindow IF_LINT (= Qnil), delta;
- EMACS_INT startpos IF_LINT (= 0);
+ ptrdiff_t startpos IF_LINT (= 0);
int top IF_LINT (= 0), new_top, resize_failed;
w = decode_any_window (window);
@@ -2892,7 +2893,7 @@ select_frame_norecord (Lisp_Object frame)
void
run_window_configuration_change_hook (struct frame *f)
{
- int count = SPECPDL_INDEX ();
+ ptrdiff_t count = SPECPDL_INDEX ();
Lisp_Object frame, global_wcch
= Fdefault_value (Qwindow_configuration_change_hook);
XSETFRAME (frame, f);
@@ -2923,7 +2924,7 @@ run_window_configuration_change_hook (struct frame *f)
if (!NILP (Flocal_variable_p (Qwindow_configuration_change_hook,
buffer)))
{
- int inner_count = SPECPDL_INDEX ();
+ ptrdiff_t inner_count = SPECPDL_INDEX ();
record_unwind_protect (select_window_norecord, Fselected_window ());
select_window_norecord (window);
run_funs (Fbuffer_local_value (Qwindow_configuration_change_hook,
@@ -2958,7 +2959,7 @@ set_window_buffer (Lisp_Object window, Lisp_Object buffer, int run_hooks_p, int
{
struct window *w = XWINDOW (window);
struct buffer *b = XBUFFER (buffer);
- int count = SPECPDL_INDEX ();
+ ptrdiff_t count = SPECPDL_INDEX ();
int samebuf = EQ (buffer, w->buffer);
w->buffer = buffer;
@@ -3189,7 +3190,7 @@ temp_output_buffer_show (register Lisp_Object buf)
/* Run temp-buffer-show-hook, with the chosen window selected
and its buffer current. */
{
- int count = SPECPDL_INDEX ();
+ ptrdiff_t count = SPECPDL_INDEX ();
Lisp_Object prev_window, prev_buffer;
prev_window = selected_window;
XSETBUFFER (prev_buffer, old);
@@ -4169,9 +4170,10 @@ window_internal_height (struct window *w)
respectively. */
static void
-window_scroll (Lisp_Object window, int n, int whole, int noerror)
+window_scroll (Lisp_Object window, EMACS_INT n, int whole, int noerror)
{
immediate_quit = 1;
+ n = clip_to_bounds (INT_MIN, n, INT_MAX);
/* If we must, use the pixel-based version which is much slower than
the line-based one but can handle varying line heights. */
@@ -4267,7 +4269,7 @@ window_scroll_pixel_based (Lisp_Object window, int n, int whole, int noerror)
/* Maybe modify window start instead of scrolling. */
if (rbot > 0 || w->vscroll < 0)
{
- EMACS_INT spos;
+ ptrdiff_t spos;
Fset_window_vscroll (window, make_number (0), Qt);
/* If there are other text lines above the current row,
@@ -4322,7 +4324,7 @@ window_scroll_pixel_based (Lisp_Object window, int n, int whole, int noerror)
start_display (&it, w, start);
if (whole)
{
- EMACS_INT start_pos = IT_CHARPOS (it);
+ ptrdiff_t start_pos = IT_CHARPOS (it);
int dy = WINDOW_FRAME_LINE_HEIGHT (w);
dy = max ((window_box_height (w)
- next_screen_context_lines * dy),
@@ -4409,8 +4411,8 @@ window_scroll_pixel_based (Lisp_Object window, int n, int whole, int noerror)
if (! vscrolled)
{
- EMACS_INT pos = IT_CHARPOS (it);
- EMACS_INT bytepos;
+ ptrdiff_t pos = IT_CHARPOS (it);
+ ptrdiff_t bytepos;
/* If in the middle of a multi-glyph character move forward to
the next character. */
@@ -4480,7 +4482,7 @@ window_scroll_pixel_based (Lisp_Object window, int n, int whole, int noerror)
}
else if (n < 0)
{
- EMACS_INT charpos, bytepos;
+ ptrdiff_t charpos, bytepos;
int partial_p;
/* Save our position, for the
@@ -4557,12 +4559,12 @@ window_scroll_line_based (Lisp_Object window, int n, int whole, int noerror)
in `grep-mode-font-lock-keywords'). So we use a marker to record
the old point position, to prevent crashes in SET_PT_BOTH. */
Lisp_Object opoint_marker = Fpoint_marker ();
- register EMACS_INT pos, pos_byte;
+ register ptrdiff_t pos, pos_byte;
register int ht = window_internal_height (w);
register Lisp_Object tem;
int lose;
Lisp_Object bolp;
- EMACS_INT startpos;
+ ptrdiff_t startpos;
Lisp_Object original_pos = Qnil;
/* If scrolling screen-fulls, compute the number of lines to
@@ -4711,7 +4713,7 @@ window_scroll_line_based (Lisp_Object window, int n, int whole, int noerror)
static void
scroll_command (Lisp_Object n, int direction)
{
- int count = SPECPDL_INDEX ();
+ ptrdiff_t count = SPECPDL_INDEX ();
xassert (eabs (direction) == 1);
@@ -4826,7 +4828,7 @@ specifies the window to scroll. This takes precedence over
{
Lisp_Object window;
struct window *w;
- int count = SPECPDL_INDEX ();
+ ptrdiff_t count = SPECPDL_INDEX ();
window = Fother_window_for_scrolling ();
w = XWINDOW (window);
@@ -4868,7 +4870,7 @@ by this function. This happens in an interactive call. */)
(register Lisp_Object arg, Lisp_Object set_minimum)
{
Lisp_Object result;
- int hscroll;
+ EMACS_INT hscroll;
struct window *w = XWINDOW (selected_window);
if (NILP (arg))
@@ -4897,7 +4899,7 @@ by this function. This happens in an interactive call. */)
(register Lisp_Object arg, Lisp_Object set_minimum)
{
Lisp_Object result;
- int hscroll;
+ EMACS_INT hscroll;
struct window *w = XWINDOW (selected_window);
if (NILP (arg))
@@ -5008,7 +5010,7 @@ and redisplay normally--don't erase and redraw the frame. */)
struct buffer *buf = XBUFFER (w->buffer);
struct buffer *obuf = current_buffer;
int center_p = 0;
- EMACS_INT charpos, bytepos;
+ ptrdiff_t charpos, bytepos;
EMACS_INT iarg IF_LINT (= 0);
int this_scroll_margin;
@@ -5073,7 +5075,7 @@ and redisplay normally--don't erase and redraw the frame. */)
{
struct it it;
struct text_pos pt;
- int nlines = min (INT_MAX, -iarg);
+ ptrdiff_t nlines = min (PTRDIFF_MAX, -iarg);
int extra_line_spacing;
int h = window_box_height (w);
void *itdata = bidi_shelve_cache ();
@@ -5357,7 +5359,7 @@ the return value is nil. Otherwise the value is t. */)
Lisp_Object frame;
Lisp_Object auto_buffer_name;
FRAME_PTR f;
- EMACS_INT old_point = -1;
+ ptrdiff_t old_point = -1;
CHECK_WINDOW_CONFIGURATION (configuration);
@@ -6072,7 +6074,7 @@ Fourth parameter HORIZONTAL-TYPE is currently unused. */)
if (!NILP (width))
{
- CHECK_NATNUM (width);
+ CHECK_RANGED_INTEGER (0, width, INT_MAX);
if (XINT (width) == 0)
vertical_type = Qnil;
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-18 09:45:51 +0000