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, 13 insertions, 17 deletions

diff --git a/src/editfns.c b/src/editfns.c
index 9ca6f373e04..ad5a26606b4 100644
--- a/src/editfns.c
+++ b/src/editfns.c
@@ -329,7 +329,7 @@ init_editfns (bool dumping)
   else
     {
       uid_t euid = geteuid ();
-      tem = make_fixnum_or_float (euid);
+      tem = INT_TO_INTEGER (euid);
     }
   Vuser_full_name = Fuser_full_name (tem);
 
@@ -1338,7 +1338,7 @@ This is based on the effective uid, not the real uid.
 Also, if the environment variables LOGNAME or USER are set,
 that determines the value of this function.
 
-If optional argument UID is an integer or a float, return the login name
+If optional argument UID is an integer, return the login name
 of the user with that uid, or nil if there is no such user.  */)
   (Lisp_Object uid)
 {
@@ -1377,39 +1377,35 @@ This ignores the environment variables LOGNAME and USER, so it differs from
 }
 
 DEFUN ("user-uid", Fuser_uid, Suser_uid, 0, 0, 0,
-       doc: /* Return the effective uid of Emacs.
-Value is an integer or a float, depending on the value.  */)
+       doc: /* Return the effective uid of Emacs.  */)
   (void)
 {
   uid_t euid = geteuid ();
-  return make_fixnum_or_float (euid);
+  return INT_TO_INTEGER (euid);
 }
 
 DEFUN ("user-real-uid", Fuser_real_uid, Suser_real_uid, 0, 0, 0,
-       doc: /* Return the real uid of Emacs.
-Value is an integer or a float, depending on the value.  */)
+       doc: /* Return the real uid of Emacs.  */)
   (void)
 {
   uid_t uid = getuid ();
-  return make_fixnum_or_float (uid);
+  return INT_TO_INTEGER (uid);
 }
 
 DEFUN ("group-gid", Fgroup_gid, Sgroup_gid, 0, 0, 0,
-       doc: /* Return the effective gid of Emacs.
-Value is an integer or a float, depending on the value.  */)
+       doc: /* Return the effective gid of Emacs.  */)
   (void)
 {
   gid_t egid = getegid ();
-  return make_fixnum_or_float (egid);
+  return INT_TO_INTEGER (egid);
 }
 
 DEFUN ("group-real-gid", Fgroup_real_gid, Sgroup_real_gid, 0, 0, 0,
-       doc: /* Return the real gid of Emacs.
-Value is an integer or a float, depending on the value.  */)
+       doc: /* Return the real gid of Emacs.  */)
   (void)
 {
   gid_t gid = getgid ();
-  return make_fixnum_or_float (gid);
+  return INT_TO_INTEGER (gid);
 }
 
 DEFUN ("user-full-name", Fuser_full_name, Suser_full_name, 0, 1, 0,
@@ -1417,7 +1413,7 @@ DEFUN ("user-full-name", Fuser_full_name, Suser_full_name, 0, 1, 0,
 If the full name corresponding to Emacs's userid is not known,
 return "unknown".
 
-If optional argument UID is an integer or float, return the full name
+If optional argument UID is an integer, return the full name
 of the user with that uid, or nil if there is no such user.
 If UID is a string, return the full name of the user with that login
 name, or nil if there is no such user.  */)
@@ -1429,7 +1425,7 @@ name, or nil if there is no such user.  */)
 
   if (NILP (uid))
     return Vuser_full_name;
-  else if (FIXED_OR_FLOATP (uid))
+  else if (NUMBERP (uid))
     {
       uid_t u;
       CONS_TO_INTEGER (uid, uid_t, u);
@@ -1489,7 +1485,7 @@ DEFUN ("emacs-pid", Femacs_pid, Semacs_pid, 0, 0, 0,
   (void)
 {
   pid_t pid = getpid ();
-  return make_fixnum_or_float (pid);
+  return INT_TO_INTEGER (pid);
 }