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* New time-equal-p testPaul Eggert2022-04-141-1/+2
| | | | * test/src/timefns-tests.el (time-equal-p-NaN-NaN): New test.
* Avoid possibly unnecessary lisp_time_struct callPhilip Kaludercic2022-04-141-2/+1
| | | | | * timefns.c (time_cmp): Defer the calculation of the time struct, in case A and B are eq to one another.
* Remove unused fns/data and make fns staticPaul Eggert2022-03-191-1/+1
| | | | | | | | | | | | | | | | | | | | | * src/comp.c (saved_sigset, helper_temp_output_buffer_setup): Remove; unused. * src/comp.c (logfile, helper_link_table): * src/fns.c (hashfn_equal, hashfn_eql): * src/frame.c (frame_windows_min_size): * src/gnutls.c (emacs_gnutls_global_init): * src/minibuf.c (Vcommand_loop_level_list): * src/syntax.c (syntax_code_spec): * src/timefns.c (time_overflow): * src/xterm.c (x_xrender_color_from_gc_foreground) (x_display_set_last_user_time): Now static, since it’s not used elsewhere. * src/xterm.c (x_xrender_color_from_gc_foreground) (x_xrender_color_from_gc_background): Move earlier to avoid forward use. (x_xrender_color_from_gc_foreground): Do not define unless !defined USE_CAIRO && (RENDER_MAJOR > 0 || RENDER_MINOR >= 2), since it’s not used otherwise.
* Fix process-attributes time precision on GNU/LinuxPaul Eggert2022-03-041-1/+1
| | | | | | | | | | | | | | | * src/sysdep.c [GNU_LINUX]: (time_from_jiffies): Simplify by using time-convert. Change args and result type. All uses changed. (ltime_from_jiffies): Remove; call time_from_jiffies instead. (put_jiffies): New function. (get_up_time): Return Lisp_Object not struct timespec. All uses changed. Simplify by using time-add. (system_process_attributes): Simplify by using the above. This fixes some minor problems where timestamps promised more precision than was actually available. When info is not available (e.g., sysconf fails) do not place it into the alist. * src/timefns.c (float_time): Now extern.
* Avoid unnecessary make_float in time arithmeticPaul Eggert2022-03-041-4/+12
| | | | | * src/timefns.c (float_time): New function. (time_arith, Ffloat_time): Use it.
* Merge remote-tracking branch 'origin/emacs-28' into trunkStefan Monnier2022-01-021-3/+4
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| * Clarify %g and %G time format specsEli Zaretskii2022-01-021-3/+4
| | | | | | | | | | * src/timefns.c (Fformat_time_string): * doc/lispref/os.texi (Time Parsing): Clarify %g/%G. (Bug#52934)
* | Merge from origin/emacs-28Eli Zaretskii2022-01-011-1/+1
|\ \ | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 836be7a112 ; * etc/refcards/ru-refcard.tex: Update Copyright year. 86cbc6ee4a * lisp/net/tramp-sh.el: Adapt copyright year ebe8772f65 ; Minor fixes related to copyright years 23c1ee6989 ; * test/manual/etags/ETAGS.good_N: Adjust to copyright ye... 8d3fc7ec89 * src/xfaces.c (face_for_font): Make 'hash' be uintptr_t. 19dcb237b5 ; Add 2022 to copyright years. # Conflicts: # etc/NEWS # etc/refcards/ru-refcard.tex # lib/cdefs.h # lisp/erc/erc-dcc.el # lisp/erc/erc-imenu.el # lisp/erc/erc-replace.el # lisp/image-dired.el # lisp/progmodes/xref.el # m4/alloca.m4 # m4/byteswap.m4 # m4/errno_h.m4 # m4/getopt.m4 # m4/gnulib-common.m4 # m4/inttypes.m4 # m4/stddef_h.m4 # m4/stdint.m4 # m4/sys_socket_h.m4
| * ; Add 2022 to copyright years.Eli Zaretskii2022-01-011-1/+1
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* | * src/timefns.c: Minor comment fix.Paul Eggert2021-12-161-2/+1
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* | Omit temporary warning re obsolete timestampsPaul Eggert2021-12-161-49/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | Do not warn about timestamps like (1 . 1000). This warning was added in Emacs 27 as a temporary transition aid, and has now served its purpose. These timestamps, which Emacs 26 and earlier treated as (HI . LO) instead of as (TICKS . HZ), were never generated by Emacs primitives, and in practice the warning seems to have been triggered only by test cases designed to generate it. * src/timefns.c (WARN_OBSOLETE_TIMESTAMPS): Remove. All uses changed to assume it’s false. (decode_lisp_time): Simplify by taking a bool instead of an integer bitmask. All uses changed.
* | Fix encode-time doc stringPaul Eggert2021-12-161-6/+5
|/ | | | | | * src/timefns.c (Fencode_time): Fix incorrect doc string that talks about FORM (which doesn’t exist) by copying wording from the manual instead.
* Work around GCC bug 102671Paul Eggert2021-10-111-0/+5
| | | | | This is for --enable-gcc-warnings on GCC 11.2.1. * src/window.c, src/timefns.c: Disable -Wanalyzer-null-dereference.
* Update copyright year to 2021Paul Eggert2021-01-011-1/+1
| | | | Run "TZ=UTC0 admin/update-copyright".
* Use the full name of the null byte/character, not its abbreviationAndreas Schwab2020-10-051-3/+3
| | | | | | | | | | | | | | | | | | | | | * lisp/subr.el (inhibit-nul-byte-detection): Make it an obsolete alias. * src/coding.c (setup_coding_system): Use original name. (detect_coding): Rename nul_byte_found => null_byte_found. (detect_coding_system): Use original name. Rename nul_byte_found => null_byte_found. (Fdefine_coding_system_internal): Use original name. (syms_of_coding): Rename inhibit-nul-byte-detection to inhibit-null-byte-detection. * src/w16select.c (get_clipboard_data): Rename nul_char to null_char. * src/json.c (check_string_without_embedded_nulls): Rename from check_string_without_embedded_nuls. (Fjson_parse_string): Adjust accordingly. * src/coding.h (enum define_coding_undecided_arg_index) (enum coding_attr_index): Rename ...nul_byte... to ...null_byte.... * lisp/info.el (info-insert-file-contents, Info-insert-dir): * lisp/international/mule.el (define-coding-system): * lisp/vc/vc-git.el (vc-git--call): * doc/lispref/nonascii.texi (Lisp and Coding Systems): Use original name.
* Simplify format_time_stringPaul Eggert2020-08-161-18/+15
| | | | | | * src/timefns.c (emacs_nmemftime, format_time_string): Simplify on the basis of recent nstrftime changes. Propagate nstrftime errno.
* Prefer make_nil_vector to make-vector with nilPaul Eggert2020-08-111-1/+1
| | | | | | | * src/pdumper.c (hash_table_thaw): Pacify -Wconversion so we can use make_nil_vector again. * src/timefns.c (syms_of_timefns): Prefer make_nil_vector to make_vector with Qnil.
* Tiny simplification of frac_to_doublePaul Eggert2020-03-191-2/+1
| | | | | * src/timefns.c (frac_to_double): Remove unnecessary runtime check, since the denominator is always positive.
* Omit timestamp optimization invalid on 387 FPUPaul Eggert2020-03-191-3/+0
| | | | | | * src/timefns.c (frac_to_double): Omit optimization that is invalid on machines with excess precision (e.g., gcc x86 with 387 FPU), because it double-rounds. Found via ‘gcc -m32’ on x86-64.
* Merge from origin/emacs-27Paul Eggert2020-03-081-7/+42
|\ | | | | | | | | cf223dc928 ; * src/timefns.c: Fix typo in previous change. 20d3d3a950 * src/timefns.c: Add comments.
| * ; * src/timefns.c: Fix typo in previous change.Paul Eggert2020-03-081-1/+1
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| * * src/timefns.c: Add comments.Paul Eggert2020-03-081-7/+42
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* | Merge from origin/emacs-27Paul Eggert2020-03-081-8/+24
|\ \ | |/ | | | | | | | | | | | | 0a3682a566 * src/timefns.c: Add comments. b16ba4041d ; lisp/emacs-lisp/seq.el: Explain why we don't use cl-lib ... 3cbf4cb796 Eliminate use of cl-concatenate in 'seq' package 363d927086 Fix bug with JIT stealth timers 818333c85a * doc/lispref/os.texi (time-subtract): Doc fix.
| * * src/timefns.c: Add comments.Paul Eggert2020-03-081-8/+24
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* | Merge from origin/emacs-27Glenn Morris2020-03-041-3/+1
|\ \ | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | a4e4510ccd Fix handling MS-Windows keyboard input above the BMP a38bebb0c1 * etc/NEWS: More complete description of rx 'not' changes. d373647e8f ; * doc/emacs/mini.texi (Yes or No Prompts): Fix last change. 1ca6d15656 * doc/emacs/mini.texi (Yes or No Prompts): 'y-or-n-p' now ... fe1a447d52 Don't attempt to cache glyph metrics for FONT_INVALID_CODE b42b894d1d Fix fit-frame-to-buffer for multi-monitor setup 366fd4fd07 (emacs-27) ; * etc/NEWS: Fix typo. 49d3cd90bd rx: Improve 'or' compositionality (bug#37659) 6b48aedb6b * lisp/tab-line.el: Fix auto-hscrolling (bug#39649) c5f255d681 (tag: emacs-27.0.90) ; Update lisp/ldefs-boot.el 60c84ad992 ; * etc/TODO: Fix last change. 5af9e5baad ; Add an entry to TODO d424195905 Fix rx charset generation 9908b5a614 Merge branch 'emacs-27' of git.savannah.gnu.org:/srv/git/e... 6dc2ebe00e Fix overquoting in mule.el 5cca73dd82 * src/timefns.c (time_arith): Omit incorrect comment. d767c357ca Merge branch 'emacs-27' of git.savannah.gnu.org:/srv/git/e... 4dec693f70 * lisp/vc/vc-cvs.el (vc-cvs-ignore): Copy-edit doc string ff729e3f97 ; bug#39779: Fix some typos in documentation. 696ee02c3a checkdoc: Don't mistake "cf." for sentence end # Conflicts: # etc/NEWS
| * * src/timefns.c (time_arith): Omit incorrect comment.Paul Eggert2020-02-281-3/+1
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* | Time division speedupsPaul Eggert2020-03-031-4/+10
| | | | | | | | | | | | * src/timefns.c (frac_to_double) [FASTER_TIMEFNS]: Prefer intmax_t division or double division to mpz division if they also yield the correctly rounded result.
* | Fix rounding errors in time conversionPaul Eggert2020-03-031-44/+35
| | | | | | | | | | | | | | | | | | | | | | | | * src/timefns.c (frac_to_double): Pass FLT_RADIX to mpz_sizeinbase instead of doing the radix calculation ourselves, not always correctly. Fix off-by-one error in scale, which caused double-rounding. (decode_time_components): Use frac_to_double (via decode_ticks_hz) to fix double-rounding error that can occur even though intermediate results are long double. * test/src/timefns-tests.el (float-time-precision): Test the above fixes.
* | Tweak GMP usage for (HI LO US PS) timestampsPaul Eggert2020-03-021-11/+20
|/ | | | | | * src/timefns.c (decode_time_components): Cut down on the number of calls to GMP functions when generating old-style (HI LO US PS) timestamps.
* Update copyright year to 2020Paul Eggert2020-01-011-1/+1
| | | | Run "TZ=UTC0 admin/update-copyright $(git ls-files)".
* Fix double-rounding bug in ceiling etc.Paul Eggert2019-11-131-2/+0
| | | | | | | | | | | | This is doable now that we have bignums. * src/floatfns.c (integer_value): Remove; no longer used. (rescale_for_division): New function. (rounding_driver): Use it to divide properly (by using bignums) even when arguments are float, fixing a double-rounding FIXME. * src/lisp.h (LOG2_FLT_RADIX): Move here ... * src/timefns.c (frac_to_double): ... from here. * test/src/floatfns-tests.el (big-round): Add a test to catch the double-rounding bug.
* Refactor double integer scalingPaul Eggert2019-11-131-22/+5
| | | | | | | This doesn’t alter behavior, and simplifies a future commit. * src/floatfns.c (double_integer_scale): New function, with body adapted from the old timefns.c. * src/timefns.c (decode_float_time): Use it.
* Fix duplicated words in commentsRobert Pluim2019-10-151-1/+1
| | | | | | | | * src/coding.c (encode_string_utf_8): * src/keyboard.c (syms_of_keyboard): * src/mini-gmp.c (gmp_lucas_mod, mpz_export): * src/pdumper.c (dump_set_referrer, dump_queue_compute_score): * src/timefns.c (Ftime_convert): Remove duplicated words.
* Improve documentation for year-zero issuesPaul Eggert2019-10-051-2/+2
| | | | | | | | | | | | * doc/emacs/calendar.texi (Calendar Systems) * doc/lispref/os.texi (Time Conversion): Prefer "BC" to "B.C." since the documentation generally uses "BC". * doc/misc/emacs-mime.texi (time-date): * lisp/calendar/time-date.el (date-to-day, time-to-days): In the doc string, state the day origin more clearly, and more consistently with the rest of the documentation. * src/timefns.c (Fdecode_time): State the year origin in the doc string.
* Mention locale-related complications in format-time-string doc stringLars Ingebrigtsen2019-09-301-2/+6
| | | | | * src/timefns.c (Fformat_time_string): Mention that the width in specifiers like %NX is often in bytes, not characters (bug#20258).
* * src/timefns.c (Fdecode_time): Improve doc string.Paul Eggert2019-09-291-3/+3
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* Tweak time arithmetic performancePaul Eggert2019-08-241-4/+4
| | | | | * src/timefns.c (time_arith): Prefer mpz_divexact to mpz_tdiv_q when either will do.
* Be more careful about pointers to bignum valsPaul Eggert2019-08-211-6/+7
| | | | | | | | | | | | | | | This uses ‘const’ to be better at catching bugs that mistakenly attempt to modify a bignum value. Lisp bignums are supposed to be immutable. * src/alloc.c (make_pure_bignum): * src/fns.c (sxhash_bignum): Accept Lisp_Object instead of struct Lisp_Bignum *, as that’s simpler now. Caller changed. * src/bignum.h (bignum_val, xbignum_val): New inline functions. Prefer them to &i->value and XBIGNUM (i)->value, since they apply ‘const’ to the result. * src/timefns.c (lisp_to_timespec): Use mpz_t const * to point to a bignum value.
* Avoid some excess precision in time arithmeticPaul Eggert2019-08-201-22/+84
| | | | | | | | | | | | | | | | | | | * doc/misc/emacs-mime.texi (time-date): Adjust example to match new behavior. * etc/NEWS: Mention this. * lisp/calendar/time-date.el (decoded-time-add) (decoded-time--alter-second): Don’t lose underestimate precision of seconds component. * src/bignum.c (mpz): Grow by 1. * src/timefns.c (trillion_factor): New function. (timeform_sub_ps_p): Remove. (time_arith): Avoid unnecessarily-large hz, by reducing the hz to a value no worse than the worse hz of the two arguments. The result is always exact unless an error is signaled. * test/src/timefns-tests.el (timefns-tests--decode-time): New function. (format-time-string-with-zone): Test (decode-time LOOK ZONE t) resolution as well as its numeric value.
* Support larger TIMEs in (time-convert TIME t)Paul Eggert2019-08-201-10/+30
| | | | | | | | | | | | | | | | | | Also, improve the doc to match current behavior. * doc/lispref/os.texi (Time Conversion): Document that time-convert signals an error for infinite or NaN args, and that (time-convert TIME t) is exact otherwise. Mention float-time as an alternative to time-convert. (Time Calculations): Document that time-add and time-subtract are exact and do not decrease HZ below the minimum of their args. * src/timefns.c (decode_float_time): Don’t signal an error for floating-point arguments whose base-FLT_RADIX exponent is not less than DBL_MANT_DIG. Instead, convert them to (TICKS . 1) values. Use two (instead of three) integer exponent comparisons in the typical case. * test/src/timefns-tests.el (time-arith-tests): Add more floating-point tests, including some tests that the old code fails.
* Fix time-add/time-sub validity checkingPaul Eggert2019-08-191-3/+3
| | | | | | * src/timefns.c (time_arith): Check the first arg for validity even if the second arg is not finite. * test/src/timefns-tests.el (time-arith-tests): Test this.
* Improve bignum_integer static checkingPaul Eggert2019-08-181-9/+9
| | | | | | | * src/bignum.h (bignum_integer): Now returns pointer-to-const, to catch trivial mistakes where the caller might try to modify a Lisp bignum. Lisp bignums are supposed to be immutable. All callers changed.
* Have time-add etc. respect CURRENT_TIME_LIST tooPaul Eggert2019-08-171-3/+6
| | | | | * src/timefns.c (time_arith) [!CURRENT_TIME_LIST]: Don’t generate a list, since CURRENT_TIME_LIST is false.
* More-compatible subsecond calendrical timestampsPaul Eggert2019-08-161-73/+105
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of appending a subseconds member to the result of ‘decode-time’, this keeps the format unchanged unless you give a new optional argument to ‘decode-time’. Also, the augmented format now puts the subsecond info in the SECONDS element, so the total number of elements is unchanged; this is more compatible with code that expects the traditional 9 elements, such as ‘(pcase decoded-time (`(,SEC ,MIN ,HOUR ,DAY ,MON ,YEAR ,DOW ,DST ,ZONE) ...) ...)’. * doc/lispref/os.texi, doc/misc/emacs-mime.texi, etc/NEWS: * lisp/net/soap-client.el (soap-decode-date-time): * lisp/simple.el (decoded-time): Document the new behavior. * lisp/calendar/icalendar.el (icalendar--decode-isodatetime): * lisp/calendar/iso8601.el (iso8601-parse) (iso8601-parse-time, iso8601-parse-duration) (iso8601--decoded-time): * lisp/calendar/parse-time.el (parse-time-string): * lisp/calendar/time-date.el (decoded-time-add) (decoded-time--alter-second): * lisp/org/org.el (org-parse-time-string): * lisp/simple.el (decoded-time): * src/timefns.c (Fdecode_time, Fencode_time): * test/lisp/calendar/icalendar-tests.el: (icalendar--decode-isodatetime): * test/lisp/calendar/iso8601-tests.el (test-iso8601-date-years) (test-iso8601-date-dates, test-iso8601-date-obsolete) (test-iso8601-date-weeks, test-iso8601-date-ordinals) (test-iso8601-time, test-iso8601-combined) (test-iso8601-duration, test-iso8601-intervals) (standard-test-dates, standard-test-time-of-day-fractions) (standard-test-time-of-day-beginning-of-day) (standard-test-time-of-day-utc) (standard-test-time-of-day-zone) (standard-test-date-and-time-of-day, standard-test-interval): * test/lisp/calendar/parse-time-tests.el (parse-time-tests): * test/src/timefns-tests.el (format-time-string-with-zone) (encode-time-dst-numeric-zone): Revert recent changes that added a SUBSECS member to calendrical timestamps, since that component is no longer present (the info, if any, is now in the SECONDS member). * lisp/calendar/time-date.el (decoded-time-add) (decoded-time--alter-second): Support fractional seconds in the new form. Simplify. * src/timefns.c (Fdecode_time): Support new arg FORM. (Fencode_time): Support subsecond resolution. * test/src/timefns-tests.el (format-time-string-with-zone) (decode-then-encode-time): Test subsecond calendrical timestamps.
* Subtracting “now” from “now” should yield zeroPaul Eggert2019-08-161-3/+13
| | | | | | * src/timefns.c (time_arith): Arrange for (time-subtract nil nil) to yield 0, to be consistent with (time-equal-p nil nil). * test/lisp/calendar/time-date-tests.el (test-time-since): New test.
* Fix time-add rounding bugPaul Eggert2019-08-161-3/+11
| | | | | | | | | | | | | | | | | | | | Without this fix, time arithmetic yielded results that were not mathematically accurate, even though the exact results were representable; for example, (time-add 0 1e-13) yielded a timestamp equal to 0 instead of to 1e-13. * lisp/timezone.el (timezone-time-from-absolute): Let time-add do its thing rather than using floating point internally, which has rounding errors. We now have bignums and so don’t need floating point to avoid overflow issues. * src/timefns.c (timeform_sub_ps_p): New function. (time_arith): If either argument is a float, represent the result exactly instead of discarding sub-ps info. * test/lisp/timezone-tests.el (timezone-tests-time-from-absolute): Don’t assume (HI LO US PS) timestamp format. * test/src/emacs-module-tests.el (mod-test-add-nanosecond/valid): Don’t assume that time-add discards sub-ns info. * test/src/timefns-tests.el (time-rounding-tests): Add regression test to detect time-add rounding bug.
* Fix rounding errors with float timestampsPaul Eggert2019-08-151-78/+143
| | | | | | | | | | | | | | | | | | | | | When converting from float to (TICKS . HZ) form, do the conversion exactly. When converting from (TICKS . HZ) form to float, round to even precisely. This way, successfully converting a float to (TICKS . HZ) and back yields a value numerically equal to the original. * src/timefns.c (flt_radix_power_size): New constant. (flt_radix_power): New static var. (decode_float_time): Convert the exact numeric value rather than guessing TIMESPEC_HZ resolution. (s_ns_to_double): Remove; no longer needed. (frac_to_double): New function. (decode_ticks_hz): It is now the caller’s responsibility to pass a valid TICKS and HZ. All callers changed. Use frac_to_double to round (TICKS . HZ) precisely. (decode_time_components): When decoding nil, use decode_ticks_hz since it rounds precisely. (syms_of_timefns): Initialize flt_radix_power. * test/src/timefns-tests.el (float-time-precision): New test.
* decode-time now returns subsec tooPaul Eggert2019-08-051-24/+58
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The list that decode-time returns now contains an extra trailing component that counts the subseconds part of the original timestamp (Bug#36549). This builds on a suggestion by Lars Ingebrigtsen in: https://lists.gnu.org/r/emacs-devel/2019-07/msg00734.html * doc/lispref/os.texi (Time Conversion): * doc/misc/emacs-mime.texi (time-date): * etc/NEWS: Document this. * lisp/calendar/icalendar.el (icalendar--decode-isodatetime): * lisp/calendar/iso8601.el (iso8601-parse) (iso8601-parse-time, iso8601-parse-duration) (iso8601--decoded-time): * lisp/calendar/parse-time.el (parse-time-string): * lisp/calendar/time-date.el (make-decoded-time) (decoded-time-set-defaults): * lisp/org/org.el (org-fix-decoded-time) (org-parse-time-string): * src/timefns.c (Fdecode_time): Generate subsec member for decoded time. * lisp/calendar/time-date.el (decoded-time-add) Add the decoded subsec too. * lisp/simple.el (decoded-time): New subsec member. * src/data.c (Frem): Simplify zero-check to match that of new Fmod. (integer_mod): New function, with most of the guts of the old Fmod. Remove redundant zero-check. (Fmod): Use it. * src/timefns.c (Fencode_time): Handle new subsec member or (with the obsolescent calling convention) subsec arg. It defaults to 0. * test/lisp/calendar/icalendar-tests.el: (icalendar--decode-isodatetime): * test/lisp/calendar/iso8601-tests.el (test-iso8601-date-years) (test-iso8601-date-dates, test-iso8601-date-obsolete) (test-iso8601-date-weeks, test-iso8601-date-ordinals) (test-iso8601-time, test-iso8601-combined) (test-iso8601-duration, test-iso8601-intervals) (standard-test-dates, standard-test-time-of-day-fractions) (standard-test-time-of-day-beginning-of-day) (standard-test-time-of-day-utc) (standard-test-time-of-day-zone) (standard-test-date-and-time-of-day, standard-test-interval): * test/lisp/calendar/parse-time-tests.el (parse-time-tests): * test/src/timefns-tests.el (format-time-string-with-zone) (encode-time-dst-numeric-zone): Adjust to match new behavior.
* New function time-convertPaul Eggert2019-08-051-105/+76
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This replaces the awkward reuse of encode-time to both convert calendrical timestamps to Lisp timestamps, and to convert Lisp timestamps to other forms. Now, encode-time does just the former and the new function does just the latter. The new function builds on a suggestion by Lars Ingebrigtsen in: https://lists.gnu.org/r/emacs-devel/2019-07/msg00801.html and refined by Stefan Monnier in: https://lists.gnu.org/r/emacs-devel/2019-07/msg00803.html * doc/lispref/os.texi (Time of Day, Time Conversion): * doc/misc/emacs-mime.texi (time-date): * etc/NEWS: Update documentation. * lisp/calendar/cal-dst.el (calendar-next-time-zone-transition): * lisp/calendar/time-date.el (seconds-to-time, days-to-time): * lisp/calendar/timeclock.el (timeclock-seconds-to-time): * lisp/cedet/ede/detect.el (ede-detect-qtest): * lisp/completion.el (cmpl-hours-since-origin): * lisp/ecomplete.el (ecomplete-add-item): * lisp/emacs-lisp/cl-extra.el (cl--random-time): * lisp/emacs-lisp/timer.el (timer--time-setter) (timer-next-integral-multiple-of-time): * lisp/find-lisp.el (find-lisp-format-time): * lisp/gnus/gnus-diary.el (gnus-user-format-function-d): * lisp/gnus/gnus-group.el (gnus-group-set-timestamp): * lisp/gnus/gnus-icalendar.el (gnus-icalendar-show-org-agenda): * lisp/gnus/nnrss.el (nnrss-normalize-date): * lisp/gnus/nnspool.el (nnspool-request-newgroups): * lisp/net/ntlm.el (ntlm-compute-timestamp): * lisp/net/pop3.el (pop3-uidl-dele): * lisp/obsolete/vc-arch.el (vc-arch-add-tagline): * lisp/org/org-clock.el (org-clock-get-clocked-time) (org-clock-resolve, org-resolve-clocks, org-clock-in) (org-clock-out, org-clock-sum): * lisp/org/org-id.el (org-id-uuid, org-id-time-to-b36): * lisp/org/ox-publish.el (org-publish-cache-ctime-of-src): * lisp/proced.el (proced-format-time): * lisp/progmodes/cc-cmds.el (c-progress-init) (c-progress-update): * lisp/progmodes/cperl-mode.el (cperl-time-fontification): * lisp/progmodes/flymake.el (flymake--schedule-timer-maybe): * lisp/progmodes/vhdl-mode.el (vhdl-update-progress-info) (vhdl-fix-case-region-1): * lisp/tar-mode.el (tar-octal-time): * lisp/time.el (emacs-uptime): * lisp/url/url-auth.el (url-digest-auth-make-cnonce): * lisp/url/url-util.el (url-lazy-message): * lisp/vc/vc-cvs.el (vc-cvs-parse-entry): * lisp/vc/vc-hg.el (vc-hg-state-fast): * lisp/xt-mouse.el (xterm-mouse-event): * test/lisp/emacs-lisp/timer-tests.el: (timer-next-integral-multiple-of-time-2): Use time-convert, not encode-time. * lisp/calendar/icalendar.el (icalendar--decode-isodatetime): Don’t use now-removed FORM argument for encode-time. It wasn’t crucial anyway. * lisp/emacs-lisp/byte-opt.el (side-effect-free-fns): Add time-convert. * lisp/emacs-lisp/elint.el (elint-unknown-builtin-args): Update encode-time signature to match current arg set. * lisp/emacs-lisp/timer.el (timer-next-integral-multiple-of-time): Use timer-convert with t rather than doing it by hand. * src/timefns.c (time_hz_ticks, time_form_stamp, lisp_time_form_stamp): Remove; no longer needed. (decode_lisp_time): Rturn the form instead of having a *PFORM arg. All uses changed. (time_arith): Just return TICKS if HZ is 1. (Fencode_time): Remove argument FORM. All callers changed. Do not attempt to encode time values; just encode decoded (calendrical) times. Unless CURRENT_TIME_LIST, just return VALUE since HZ is 1. (Ftime_convert): New function, which does the time value conversion that bleeding-edge encode-time formerly did. Return TIME if it is easy to see that it is already of the correct form. (Fcurrent_time): Mention in doc that the form is planned to change. * test/src/timefns-tests.el (decode-then-encode-time): Don’t use (encode-time nil).
* Tweak time arithmetic performancePaul Eggert2019-08-041-12/+32
| | | | | | | * src/timefns.c (lispint_arith): New function, which should be a bit faster if B is 0, or if A is a bignum and B a fixnum with absolute value in unsigned long range. (time_arith): Use it.
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