This happened when the type of the previous function was a struct, etc.,
declaration.
* lisp/progmodes/cc-mode (c-guess-basic-syntax CASE 5N): Check here (for
'topmost-intro-cont) that the first opening brace after BOD is the opening
brace preceding the starting point.
More precisely, when point is right after the terminating semicolon of a
construct like "struct foo { .... } bar;", the function must return
'at-function-end.
* lisp/progmodes/cc-cmds.el (c-where-wrt-brace-construct): Surround an
existing test for 'at-function-end with an `or' form, the other arm testing
for being after the semicolon above.
* lisp/emacs-lisp/backtrace.el (backtrace--print-func-and-args): Make
links to the original definition of advised functions. Handle the
case when the function slot of the backtrace frame contains the
definition of a built-in function.
54fb383 (origin/emacs-26) Fix detection of freed emacs_values (Bug#32...
769d0cd ; Fix out-of-tree build for mod-test.so
9a1329e Avoid crashes with very wide TTY frames on MS-Windows
9a613d3 Prevent `modify-file-local-variable-prop-line' from adding ex...
624e7dc Update GNOME bugtracker URLs
51ef6d5 Clarify in the Emacs manual that ChangeLog files are not used
6e08019 Recognize codepage 65001 as a valid encoding
1a350d7 ; * etc/NEWS: Fix format of first lines of some entries.
22d1f53 Avoid compilation warning in nt/addpm.c
7bc9ce7 Fix duplicate custom group names in bibtex.el
a9cf938 Fix outdated text in the Calc manual
Conflicts:
etc/NEWS
etc/PROBLEMS
src/emacs-module.c
src/gtkutil.c
src/image.c
src/xterm.c
test/Makefile.in
Fixes bug #32403.
* lisp/progmodes/cc-cmds.el (c-in-function-trailer-p): No longer insist on
c-beginning-of-decl-1 returning 'same.
(c-where-wrt-brace-construct): Tighten up the test for looking at a symbol by
excluding keywords. When point is after a }, do not return 'at-function-end
for a struct/union/class/...
(c-defun-name-1): Considerably simplify, by amalgamating the two cond arms
which find structs etc., and by using functions like c-forward-declarator
rather than the faulty analysis of the source by hand.
* doc/lispref/os.texi (Time Parsing): It works with bignums.
* lisp/calendar/time-date.el (format-seconds):
Take the floor so that the resulting arithmetic is exact.
* src/emacs-module.c (module_free_global_ref): Compare a value to be
freed with all entries of the list.
* test/data/emacs-module/mod-test.c (Fmod_test_globref_free): New
function.
(emacs_module_init): Make it accessible from Lisp.
* test/src/emacs-module-tests.el (mod-test-globref-free-test): New
test which uses it.
Optimization opportunity noted by Pip Cet in:
https://lists.gnu.org/r/emacs-devel/2018-08/msg00828.html
On my platform (Fedora 28 x86-64, AMD Phenom II X4 910e,
user+system time), this improved ‘make compile-always’
performance by 0.4% and shrank text size by a similar amount.
* src/lisp.h (TAGGEDP, lisp_h_TAGGEDP): New macros and function.
(lisp_h_CONSP, lisp_h_FLOATP, lisp_h_SYMBOLP)
(lisp_h_VECTORLIKEP, make_lisp_ptr, STRINGP): Use them.
(lisp_h_FIXNUMP): Use the same idea that lisp_h_TAGGEDP uses.
* src/w32console.c <glyph_base>: Reduce the number of elements
to 80.
<glyphs, glyphs_len>: New static variables.
(w32con_clear_end_of_line): If the line is wider than the
current size of the "empty row" in 'glyphs', reallocate
'glyphs' to support the full width of the frame. This
avoids segfaults when the frame is wider than 256 columns.
(Bug#32445)
* lisp/files-x.el (modify-file-local-variable-prop-line): Handle
whitespace when checking if there's already a ';' before the
variable (Bug#23294).
Copyright-paperwork-exempt: yes
* lisp/comint.el (comint-password-prompt-regexp): Allow text between
the prompt prefix and password equivalent.
* lisp/eshell/esh-mode.el (eshell-password-prompt-regexp): Accept some
unicode alternatives to ":".
* test/lisp/comint-tests.el (comint-testsuite-password-strings): Add
test case.
The change from 2017-12-22 "Support French password prompts in shell"
tried to allow nonbreaking space in addition to whitespace syntax
characters around the colon, but used square brackets which cause "\s"
to be interpreted literally rather than as a backslash construct.
* lisp/comint.el (comint-password-prompt-regexp): Use [[:blank:]]
instead, which also has the benefit of not relying on the major mode's
whitespace syntax setting.
* test/lisp/comint-tests.el (comint-testsuite-password-strings):
Update French localized entry to have a space before the colon, as
reported in Bug#29729.
* lisp/mail/rmailsum.el (rmail-summary-scroll-msg-up)
(rmail-summary-scroll-msg-down): Use 'pos-visible-in-window-p'
instead of checking the condition by hand.
* doc/emacs/trouble.texi (Sending Patches): Use "commit log"
instead of "change log", to avoid the interpretation that we
are talking about literal ChangeLog files. (Bug#32359)
I looked through all instances of most-negative-fixnum
and most-positive-fixnum in the Lisp source code, and
when it was easy I removed assumptions that integers
fit in fixnums. The remaining instances are either
nontrivial to fix, or are inherent to the algorithm.
* lisp/arc-mode.el (archive-l-e): Do not convert to float,
since we have bignums now. All uses changed.
* lisp/calc/calc.el (math-bignum):
Don’t special-case most-negative-fixnum.
* lisp/calendar/parse-time.el (parse-time-string):
* lisp/emacs-lisp/edebug.el (edebug-read-special):
* lisp/emacs-lisp/package.el (package--remove-hidden):
* lisp/gnus/nnfolder.el (nnfolder-read-folder):
* lisp/international/mule-util.el (filepos-to-bufferpos--dos):
* lisp/menu-bar.el (menu-bar-update-buffers):
* lisp/net/rcirc.el (rcirc-handler-317):
* lisp/org/org-agenda.el (org-cmp-ts):
* lisp/window.el (window--resize-child-windows):
Avoid arbitrary limit to most-positive-fixnum or to
most-negative-fixnum.
* lisp/calendar/time-date.el (days-to-time):
* lisp/erc/erc-dcc.el (erc-unpack-int):
Don’t worry about integer overflow.
* lisp/cedet/semantic/wisent/comp.el (wisent-BITS-PER-WORD):
* lisp/gnus/message.el (message-unique-id):
* lisp/org/org-footnote.el (org-footnote-new):
Simplify.
* lisp/erc/erc-dcc.el (erc-most-positive-int-bytes)
(erc-most-positive-int-msb): Remove; no longer needed.
* lisp/net/imap.el (imap-string-to-integer): Remove; unused.
* lisp/org/org-element.el (org-element--cache-generate-key):
Document fixnum limitation.
Also, since Emacs historically reported a range error when
rounding operations overflowed, do that consistently for all
bignum overflows.
* doc/lispref/errors.texi (Standard Errors):
* doc/lispref/numbers.texi (Integer Basics): Document range errors.
* src/alloc.c (range_error): Rename from integer_overflow.
All uses changed.
* src/floatfns.c (rounding_driver): When the result of a floating
point rounding operation does not fit into a fixnum, put it
into a bignum instead of always signaling an range error.
* test/src/floatfns-tests.el (divide-extreme-sign):
These tests now return the mathematically-correct answer
instead of signaling an error.
(bignum-round): Check that integers round to themselves.
* lisp/vc/vc-hg.el (vc-hg--raw-dirstate-search):
Use eql, not eq, on integers that could be bignums.
(vc-hg--time-to-integer): Rename from vc-hg--time-to-fixnum.
All uses changed.
(vc-hg-state-fast): Remove test that 32-bit unsigned values
must be fixnums.
Problem reported by Andy Moreton (Bug#32463#35 (d)).
* src/floatfns.c (rounding_driver): Change the signature
of the integer rounder to use mpz_t rather than EMACS_INT.
All uses changed. Support bignums.
(ceiling2, floor2, truncate2, round2): Remove.
All uses changed to rounddiv_q or to a GMP library function.
(rounddiv_q): New function.
* test/src/floatfns-tests.el (bignum-round): New test.
* doc/lispref/objects.texi (Integer Type): Mention
most-negative-fixnum and most-positive-fixnum as alternatives
to fixnump and bignump.
* lisp/subr.el (fixnump, bignump): Now written in Lisp.
* src/data.c (Ffixnump, Fbignump): No longer written in C,
as these new functions are not crucial for performance.
Problem reported by Stefan Monnier (Bug#32476).
* src/lread.c (string_to_number): Don't pass leading "+"
or trailing "." or junk to make_bignum_str.
* test/src/lread-tests.el (lread-string-to-number-trailing-dot):
New test.
I audited use of lsh in the Lisp source code, and fixed the
glitches that I found. While I was at it, I replaced uses of lsh
with ash when either will do. Replacement is OK when either
argument is known to be nonnegative, or when only the low-order
bits of the result matter, and is a (minor) win since ash is a bit
more solid than lsh nowadays, and is a bit faster.
* lisp/calc/calc-ext.el (math-check-fixnum):
Prefer most-positive-fixnum to (lsh -1 -1).
* lisp/vc/vc-hg.el (vc-hg-state-fast): When testing fixnum width,
prefer (zerop (ash most-positive-fixnum -32)) to (zerop (lsh -1
32)) (Bug#32485#11).
* lisp/emacs-lisp/bytecomp.el (byte-compile-lapcode):
Tighten sanity-check for bytecode overflow, by checking that the
result of (ash pc -8) is nonnegative. Formerly this check was not
needed since lsh was used and the number overflowed differently.
* lisp/net/dns.el (dns-write): Fix some obvious sign typos in
shift counts. Evidently this part of the code has never been
exercised.
* lisp/progmodes/hideif.el (hif-shiftleft, hif-shiftright):
* lisp/term/common-win.el (x-setup-function-keys):
Simplify.
* admin/unidata/unidata-gen.el, admin/unidata/uvs.el:
* doc/lispref/keymaps.texi, doc/lispref/syntax.texi:
* doc/misc/calc.texi, doc/misc/cl.texi, etc/NEWS.19:
* lisp/arc-mode.el, lisp/calc/calc-bin.el, lisp/calc/calc-comb.el:
* lisp/calc/calc-ext.el, lisp/calc/calc-math.el:
* lisp/cedet/semantic/wisent/comp.el, lisp/composite.el:
* lisp/disp-table.el, lisp/dos-fns.el, lisp/edmacro.el:
* lisp/emacs-lisp/bindat.el, lisp/emacs-lisp/byte-opt.el:
* lisp/emacs-lisp/bytecomp.el, lisp/emacs-lisp/cl-extra.el:
* lisp/erc/erc-dcc.el, lisp/facemenu.el, lisp/gnus/message.el:
* lisp/gnus/nndoc.el, lisp/gnus/nnmaildir.el, lisp/image.el:
* lisp/international/ccl.el, lisp/international/fontset.el:
* lisp/international/mule-cmds.el, lisp/international/mule.el:
* lisp/json.el, lisp/mail/binhex.el, lisp/mail/rmail.el:
* lisp/mail/uudecode.el, lisp/md4.el, lisp/net/dns.el:
* lisp/net/ntlm.el, lisp/net/sasl.el, lisp/net/socks.el:
* lisp/net/tramp.el, lisp/obsolete/levents.el:
* lisp/obsolete/pgg-parse.el, lisp/org/org.el:
* lisp/org/ox-publish.el, lisp/progmodes/cc-defs.el:
* lisp/progmodes/ebnf2ps.el, lisp/progmodes/hideif.el:
* lisp/ps-bdf.el, lisp/ps-print.el, lisp/simple.el:
* lisp/tar-mode.el, lisp/term/common-win.el:
* lisp/term/tty-colors.el, lisp/term/xterm.el, lisp/vc/vc-git.el:
* lisp/vc/vc-hg.el, lisp/x-dnd.el, test/src/data-tests.el:
Prefer ash to lsh when either will do.
* src/bytecode.c (exec_byte_code): Support bignums
when implementing nth, elt, and =.
* src/lisp.h (SMALL_LIST_LEN_MAX): New constant.
* src/fns.c (Fnthcdr): Use it.
(Felt): Do not reject bignum indexes.
libgmp calls ‘abort’ when given numbers too big for its
internal data structures. The numeric limit is large and
platform-dependent; with 64-bit GMP 6.1.2 it is around
2**2**37. Work around the problem by refusing to call libgmp
functions with arguments that would cause an abort. With luck
libgmp will have a better way to do this in the future.
Also, introduce a variable integer-width that lets the user
control how large bignums can be. This currently defaults
to 2**16, i.e., it allows bignums up to 2**2**16. This
should be enough for ordinary computation, and should
help Emacs to avoid thrashing or hanging.
Problem noted by Pip Cet (Bug#32463#71).
* doc/lispref/numbers.texi, etc/NEWS:
Document recent bignum changes, including this one.
Improve documentation for bitwise operations, in the light
of bignums.
* src/alloc.c (make_number): Enforce integer-width.
(integer_overflow): New function.
(xrealloc_for_gmp, xfree_for_gmp):
Move here from emacs.c, as it's memory allocation.
(init_alloc): Initialize GMP here, rather than in emacs.c.
(integer_width): New var.
* src/data.c (GMP_NLIMBS_MAX, NLIMBS_LIMIT): New constants.
(emacs_mpz_size, emacs_mpz_mul)
(emacs_mpz_mul_2exp, emacs_mpz_pow_ui): New functions.
(arith_driver, Fash, expt_integer): Use them.
(expt_integer): New function, containing integer code
that was out of place in floatfns.c.
(check_bignum_size, xmalloc_for_gmp): Remove.
* src/emacs.c (main): Do not initialize GMP here.
* src/floatfns.c (Fexpt): Use expt_integer, which
now contains integer code moved from here.
* src/lisp.h (GMP_NUMB_BITS): Define if gmp.h doesn’t.
Also, fix bug when N is a positive bignum, a problem reported
by Eli Zaretskii and Pip Cet in:
https://lists.gnu.org/r/emacs-devel/2018-08/msg00690.html
* src/fns.c (Fnthcdr): If a cycle is found, reduce the count
modulo the cycle length before continuing. This reduces the
worst-case cost of (nthcdr N L) from N to min(N, C) where C is
the number of distinct cdrs of L. Reducing modulo the cycle
length also allows us to do arithmetic with machine words
instead of with GMP.
* test/src/fns-tests.el (test-nthcdr-circular): New test.
Problem reported by Federico in:
https://lists.gnu.org/r/emacs-devel/2018-08/msg00619.html
* src/floatfns.c (Fexpt): Use TYPE_RANGED_FIXNUMP, not
RANGED_FIXNUMP, to fix bug with unsigned comparison on
platforms built --without-wide-int.
Problem and initial solution reported by Andy Moreton in:
https://lists.gnu.org/r/emacs-devel/2018-08/msg00503.html
* doc/lispref/numbers.texi (Math Functions): expt integer
overflow no longer causes truncation; it now signals an error
since bignum overflow is a big deal.
* src/floatfns.c (Fexpt): Support bignum arguments.
* test/src/floatfns-tests.el (bignum-expt): New test.
