This makes the callers a bit easier to read, and doubtless
improves efficiency very slightly.  It also simplifies
possible future changes to allow bignum indexes to buffers.
* src/alloc.c (allocate_vectorlike):
Prefer ptrdiff_t to size_t when either will do.
(make_vector): New function.
(Fmake_vector): Use it.
* src/buffer.c (syms_of_buffer):
* src/bytecode.c (syms_of_bytecode):
* src/category.c (Fmake_category_table, init_category_once):
* src/ccl.c (syms_of_ccl):
* src/character.c (syms_of_character):
* src/charset.c (Fdefine_charset_internal)
(Ffind_charset_region, Ffind_charset_string):
* src/chartab.c (copy_char_table):
* src/coding.c (Fdefine_coding_system_internal, syms_of_coding):
* src/composite.c (get_composition_id, Fcomposition_get_gstring):
* src/composite.h (LGLYPH_NEW):
* src/fns.c (concat, Flocale_info, make_hash_table):
* src/font.c (font_otf_ValueRecord, font_otf_anchor)
(build_style_table, syms_of_font):
* src/fontset.c (RFONT_DEF_NEW, fontset_find_font)
(dump_fontset, syms_of_fontset):
* src/image.c (xpm_make_color_table_v):
* src/keyboard.c (modify_event_symbol, menu_bar_items)
(parse_menu_item, parse_tool_bar_item, init_tool_bar_items)
(syms_of_keyboard):
* src/keymap.c (Fdefine_key, describe_map, describe_vector):
* src/lread.c (read_vector):
* src/macfont.m (macfont_shape):
* src/menu.c (init_menu_items):
* src/nsfns.m (ns_make_monitor_attribute_list):
* src/process.c (conv_sockaddr_to_lisp, network_interface_info):
* src/profiler.c (make_log):
* src/window.c (Fcurrent_window_configuration):
* src/xdisp.c (with_echo_area_buffer_unwind_data)
(format_mode_line_unwind_data):
* src/xfaces.c (Finternal_make_lisp_face)
(Fface_attributes_as_vector):
* src/xfns.c (x_make_monitor_attribute_list)
(Fx_display_monitor_attributes_list):
* src/xfont.c (syms_of_xfont):
* src/xselect.c (x_handle_dnd_message):
* src/xwidget.c (save_script_callback):
Prefer make_nil_vector (N) to Fmake_vector (make_fixnum (N), Qnil).
* src/callint.c (Fcall_interactively):
* src/charset.c (load_charset_map):
* src/chartab.c (Fmake_char_table, uniprop_encode_value_numeric):
* src/composite.c (get_composition_id)
* src/dispnew.c (Fframe_or_buffer_changed_p)
(syms_of_display):
* src/fns.c (make_hash_table, maybe_resize_hash_table):
* src/font.c (font_style_to_value):
* src/fontset.c (FONTSET_ADD, fontset_add):
* src/json.c (json_to_lisp):
* src/keymap.c (syms_of_keymap):
* src/lread.c (init_obarray):
* src/profiler.c (make_log, Fprofiler_cpu_log):
* src/term.c (term_get_fkeys_1):
Prefer make_vector (N, V) to Fmake_vector (make_fixnum (N), V).
* src/font.c (build_style_table):
* src/macfont.m (macfont_shape):
* src/process.c (conv_sockaddr_to_lisp, network_interface_info):
Prefer make_uninit_vector if the vector will be initialized soon.
* src/lisp.h (make_nil_vector): New function.

* src/xselect.c (selection_data_to_lisp_data):
* src/w32fns.c (Fw32_read_registry):
* src/process.c (Fprocess_id):
* src/font.c (Ffont_variation_glyphs, Finternal_char_font):
* src/fns.c (Fsafe_length):
* src/editfns.c (Fuser_uid, Fuser_real_uid, Fgroup_gid)
(Fgroup_real_gid, Femacs_pid):
* src/dired.c (Ffile_attributes):
* src/charset.c (Fencode_char): Update commentary and doc
strings for recent changes that produce bignums where
previously cons cells of integers were produced.

* src/lisp.h (integer_to_intmax, integer_to_uintmax): New functions.
* src/data.c (cons_to_unsigned, cons_to_signed)
(arith_driver):
* src/dbusbind.c (xd_extract_signed, xd_extract_unsigned):
* src/dispnew.c (sit_for):
* src/editfns.c (styled_format):
* src/emacs-module.c (module_extract_integer):
* src/fileio.c (file_offset):
* src/font.c (font_unparse_xlfd, Fopen_font):
* src/xdisp.c (calc_line_height_property):
* src/process.c (handle_child_signal):

Problem reported by Yuri D’Elia in:
https://lists.gnu.org/r/emacs-devel/2018-08/msg00977.html
and crucial clue provided by Michael Heerdegen in:
https://lists.gnu.org/r/emacs-devel/2018-08/msg01043.html
* src/font.c (font_unparse_xlfd): Fix off-by-1 typo.

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.

This addresses the -Og uninitialized variable warnings I ran
into on Fedora 28, which uses 8.1.1 20180712 (Red Hat 8.1.1-5).
It also changes some explicit initializations to UNINIT
when the variable does not actually need to be initialized.
* src/process.c (connect_network_socket):
* src/sysdep.c (system_process_attributes):
* src/xfns.c (x_real_pos_and_offsets):
* src/xterm.c (get_current_wm_state) [USE_XCB]:
Add UNINIT.
* src/editfns.c (tzlookup):
* src/fns.c (Fnconc):
* src/font.c (font_parse_fcname):
* src/frame.c (x_set_frame_parameters):
Prefer UNINIT to explicit initialization.

* src/w32.c (w32_read_registry):
* src/font.c (font_parse_fcname):
* src/fns.c (Fnconc):
* src/editfns.c (tzlookup):
* src/frame.c (x_set_frame_parameters): Avoid compiler warnings
about maybe-uninitialized variables.

* src/alloc.c, src/bidi.c, src/buffer.c, src/buffer.h, src/bytecode.c,
src/callint.c, src/callproc.c, src/casefiddle.c, src/casetab.c,
src/category.c, src/ccl.c, src/character.c, src/character.h,
src/charset.c, src/charset.h, src/chartab.c, src/cmds.c, src/coding.c,
src/composite.c, src/composite.h, src/data.c, src/dbusbind.c,
src/decompress.c, src/dired.c, src/dispextern.h, src/dispnew.c,
src/disptab.h, src/doc.c, src/dosfns.c, src/editfns.c,
src/emacs-module.c, src/emacs.c, src/eval.c, src/fileio.c,
src/floatfns.c, src/fns.c, src/font.c, src/font.h, src/fontset.c,
src/frame.c, src/frame.h, src/fringe.c, src/ftcrfont.c, src/ftfont.c,
src/gfilenotify.c, src/gnutls.c, src/gtkutil.c, src/image.c,
src/indent.c, src/insdel.c, src/intervals.c, src/json.c,
src/keyboard.c, src/keymap.c, src/kqueue.c, src/lcms.c, src/lisp.h,
src/lread.c, src/macros.c, src/marker.c, src/menu.c, src/minibuf.c,
src/msdos.c, src/print.c, src/process.c, src/profiler.c, src/search.c,
src/sound.c, src/syntax.c, src/syntax.h, src/sysdep.c, src/term.c,
src/termhooks.h, src/textprop.c, src/undo.c, src/w32.c,
src/w32console.c, src/w32fns.c, src/w32font.c, src/w32inevt.c,
src/w32proc.c, src/w32select.c, src/w32term.c, src/w32term.h,
src/w32uniscribe.c, src/window.c, src/xdisp.c, src/xfaces.c,
src/xfns.c, src/xfont.c, src/xftfont.c, src/xmenu.c, src/xml.c,
src/xrdb.c, src/xselect.c, src/xsettings.c, src/xterm.c, src/xwidget.c
Rename XINT->XFIXNUM, XFASTINT->XFIXNAT, XUINT->XUFIXNUM.

* src/json.c, src/keyboard.c, src/keyboard.h, src/keymap.c,
src/kqueue.c, src/lcms.c, src/lisp.h, src/lread.c, src/macros.c,
src/marker.c, src/menu.c, src/minibuf.c, src/msdos.c, src/print.c,
src/process.c, src/profiler.c, src/search.c, src/sound.c,
src/syntax.c, src/sysdep.c, src/term.c, src/terminal.c,
src/textprop.c, src/undo.c, src/w16select.c, src/w32.c,
src/w32console.c, src/w32cygwinx.c, src/w32fns.c, src/w32font.c,
src/w32inevt.c, src/w32proc.c, src/w32select.c, src/w32term.c,
src/w32uniscribe.c, src/widget.c, src/window.c, src/xdisp.c,
src/xfaces.c, src/xfns.c, src/xfont.c, src/xftfont.c, src/xmenu.c,
src/xrdb.c, src/xselect.c, src/xterm.c, src/xwidget.c: Rename
INTEGERP->FIXNUM, make_number->make_fixnum, CHECK_NUMBER->CHECK_FIXNUM,
make_natnum->make_fixed_natum, NUMBERP->FIXED_OR_FLOATP,
NATNUMP->FIXNATP, CHECK_NATNUM->CHECK_FIXNAT.

* src/lisp.h (make_mint_ptr, mint_ptrp, xmint_pointer): New functions.
* src/dbusbind.c (xd_lisp_dbus_to_dbus, Fdbus__init_bus):
* src/emacs-module.c (module_free_global_ref, Fmodule_load)
(module_assert_runtime, module_assert_env, value_to_lisp)
(lisp_to_value, initialize_environment)
(finalize_environment, finalize_runtime_unwind)
(mark_modules):
* src/font.c (otf_open, font_put_frame_data)
(font_get_frame_data):
* src/macfont.m (macfont_invalidate_family_cache)
(macfont_get_family_cache_if_present)
(macfont_set_family_cache):
* src/nsterm.h (XNS_SCROLL_BAR):
* src/nsterm.m (ns_set_vertical_scroll_bar)
(ns_set_horizontal_scroll_bar):
* src/w32fns.c (w32_monitor_enum)
(w32_display_monitor_attributes_list):
* src/xterm.c (x_cr_destroy, x_cr_export_frames):
* src/xwidget.c (webkit_javascript_finished_cb)
(save_script_callback, Fxwidget_webkit_execute_script)
(kill_buffer_xwidgets):
Use mint pointers instead of merely save pointers.