Improve bignum support for system types

Use bignums when Emacs converts to and from system types like
off_t for file sizes whose values can exceed fixnum range.
Formerly, Emacs sometimes generted floats and sometimes ad-hoc
conses of integers.  Emacs still accepts floats and conses for
these system types, in case some stray Lisp code is generating
them, though this usage is obsolescent.
* doc/lispref/files.texi (File Attributes):
* doc/lispref/hash.texi (Defining Hash):
* doc/lispref/nonascii.texi (Character Sets):
* doc/lispref/os.texi (User Identification):
* doc/lispref/processes.texi (System Processes):
* etc/NEWS:
Document changes.
* src/bignum.c (mpz_set_uintmax, make_biguint)
(mpz_set_uintmax_slow, bignum_to_intmax, bignum_to_uintmax):
New functions.
(mpz_set_intmax_slow): Implement via mpz_limbs_write,
to avoid the need for an extra pass through a negative number.
* src/charset.c (Fencode_char):
* src/composite.h (LGLYPH_SET_CODE):
* src/dired.c (file_attributes):
* src/dosfns.c, src/w32.c (list_system_processes)
(system_process_attributes):
* src/editfns.c (init_editfns, Fuser_uid, Fuser_real_uid)
(Fgroup_gid, Fgroup_real_gid, Femacs_pid):
* src/emacs-module.c (check_vec_index):
* src/fns.c (Fsafe_length):
* src/process.c (record_deleted_pid, Fprocess_id):
* src/sysdep.c (list_system_processes, system_process_attributes):
* src/xselect.c (x_own_selection, selection_data_to_lisp_data):
* src/xterm.c (set_wm_state):
* src/inotify.c (inotifyevent_to_event, add_watch)
(inotify_callback):
If an integer is out of fixnum range, use a bignum
instead of converting it to a float or a cons of integers.
* src/coding.c (Fdefine_coding_system_internal):
* src/frame.c (frame_windows_min_size)
(x_set_frame_parameters):
* src/fringe.c (Fdefine_fringe_bitmap):
* src/nsterm.m (mouseDown:):
* src/syntax.c (find_defun_start):
* src/w32fns.c (x_set_undecorated, w32_createwindow)
(w32_wnd_proc, Fx_create_frame, Fx_show_tip)
(w32_console_toggle_lock_key):
* src/w32inevt.c (key_event):
* src/w32proc.c (Fw32_get_locale_info):
Do not mishandle floats by treating their addresses as their
values.
* src/data.c (store_symval_forwarding):
* src/gnutls.c (Fgnutls_error_fatalp, Fgnutls_error_string):
* src/keyboard.c (command_loop_1, make_lispy_event):
* src/lread.c (read_filtered_event, read1)
(substitute_object_recurse):
* src/window.c (Fcoordinates_in_window_p, Fwindow_at)
(window_resize_apply, Fset_window_vscroll):
* src/xdisp.c (handle_single_display_spec, try_scrolling)
(redisplay_window, calc_pixel_width_or_height)
(calc_line_height_property, on_hot_spot_p):
* src/xfaces.c (check_lface_attrs):
* src/xselect.c (x_get_local_selection, cons_to_x_long)
(lisp_data_to_selection_data, clean_local_selection_data)
(x_check_property_data, x_fill_property_data):
(x_send_client_event):
Do not reject bignums.
* src/data.c (INTBIG_TO_LISP, intbig_to_lisp)
(uintbig_to_lisp):
Remove.  All uses removed.
* src/data.c (cons_to_unsigned, cons_to_signed):
* src/dbusbind.c (xd_signature, xd_extract_signed)
(xd_extract_unsigned):
* src/dispnew.c (sit_for):
* src/dosfns.c, src/w32.c (system_process_attributes):
* src/editfns.c (Fuser_full_name):
* src/fileio.c (file_offset):
* src/fileio.c (write_region):
* src/font.c (font_unparse_xlfd, font_open_for_lface, Fopen_font):
* src/frame.c (x_set_screen_gamma):
* src/frame.h (NUMVAL, FRAME_PIXEL_X_FROM_CANON_X)
(FRAME_PIXEL_Y_FROM_CANON_Y):
* src/image.c (parse_image_spec, x_edge_detection)
(compute_image_size):
* src/json.c (json_to_lisp):
* src/lcms.c (PARSE_LAB_LIST_FIELD, Flcms_cie_de2000)
(PARSE_XYZ_LIST_FIELD, PARSE_JCH_LIST_FIELD)
(PARSE_JAB_LIST_FIELD, PARSE_VIEW_CONDITION_FLOAT)
(Flcms_temp_to_white_point):
* src/nsimage.m (ns_load_image, setSizeFromSpec):
* src/process.c (Fsignal_process, handle_child_signal):
* src/sysdep.c (system_process_attributes):
* src/xdisp.c (calc_line_height_property):
Handle bignums.
* src/data.c (Fnumber_to_string): Use proper predicate name in
signal if the argument is not a number.
* src/lisp.h (make_uint): New function.
(INT_TO_INTEGER): New macro.
(FIXED_OR_FLOATP, CHECK_FIXNUM_OR_FLOAT)
(CHECK_FIXNUM_OR_FLOAT_COERCE_MARKER, INTEGER_TO_CONS)
(make_fixnum_or_float): Remove; no longer used.
* src/nsfns.m, src/w32fns.c, src/xfns.c (Fx_create_frame):
Reject floating-point min-width or min-height.
* src/process.c (handle_child_signal): Do not worry
about floating-point pids, as they are no longer generated.

1 files changed, 7 insertions, 10 deletions

diff --git a/src/process.c b/src/process.c
index a266da1c1b9..29cedd7ad69 100644
--- a/src/process.c
+++ b/src/process.c
@@ -1025,7 +1025,7 @@ static Lisp_Object deleted_pid_list;
 void
 record_deleted_pid (pid_t pid, Lisp_Object filename)
 {
-  deleted_pid_list = Fcons (Fcons (make_fixnum_or_float (pid), filename),
+  deleted_pid_list = Fcons (Fcons (INT_TO_INTEGER (pid), filename),
                             /* GC treated elements set to nil.  */
                             Fdelq (Qnil, deleted_pid_list));
 
@@ -1164,7 +1164,7 @@ For a network, serial, and pipe connections, this value is nil.  */)
 
   CHECK_PROCESS (process);
   pid = XPROCESS (process)->pid;
-  return (pid ? make_fixnum_or_float (pid) : Qnil);
+  return pid ? INT_TO_INTEGER (pid) : Qnil;
 }
 
 DEFUN ("process-name", Fprocess_name, Sprocess_name, 1, 1, 0,
@@ -6850,13 +6850,13 @@ SIGCODE may be an integer, or a symbol whose name is a signal name.  */)
         tem = string_to_number (SSDATA (process), 10, 0);
       process = tem;
     }
-  else if (!FIXED_OR_FLOATP (process))
+  else if (!NUMBERP (process))
     process = get_process (process);
 
   if (NILP (process))
     return process;
 
-  if (FIXED_OR_FLOATP (process))
+  if (NUMBERP (process))
     CONS_TO_INTEGER (process, pid_t, pid);
   else
     {
@@ -7053,13 +7053,10 @@ handle_child_signal (int sig)
       if (! CONSP (head))
         continue;
       xpid = XCAR (head);
-      if (all_pids_are_fixnums ? FIXNUMP (xpid) : FIXED_OR_FLOATP (xpid))
+      if (all_pids_are_fixnums ? FIXNUMP (xpid) : INTEGERP (xpid))
         {
-          pid_t deleted_pid;
-          if (FIXNUMP (xpid))
-            deleted_pid = XFIXNUM (xpid);
-          else
-            deleted_pid = XFLOAT_DATA (xpid);
+          pid_t deleted_pid = (FIXNUMP (xpid) ? XFIXNUM (xpid)
+                               : bignum_to_intmax (xpid));
           if (child_status_changed (deleted_pid, 0, 0))
             {
               if (STRINGP (XCDR (head)))