Mercurial > gnulib
view lib/dtotimespec.c @ 40198:5a34193cbc07
long-options: add parse_gnu_standard_options_only
Discussed in https://bugs.gnu.org/33468 .
* lib/long-options.c (parse_long_options): Use EXIT_SUCCESS instead
of 0.
(parse_gnu_standard_options_only): Add function to
process the GNU default options --help and --version and fail for any other
unknown long or short option. See
https://gnu.org/prep/standards/html_node/Command_002dLine-Interfaces.html .
* lib/long-options.h (parse_gnu_standard_options_only): Declare it.
* modules/long-options (depends-on): Add stdbool, exitfail.
* top/maint.mk (sc_prohibit_long_options_without_use): Update
syntax-check rule, add new function name.
author | Bernhard Voelker <mail@bernhard-voelker.de> |
---|---|
date | Thu, 29 Nov 2018 09:06:26 +0100 |
parents | b06060465f09 |
children |
line wrap: on
line source
/* Convert double to timespec. Copyright (C) 2011-2019 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ /* written by Paul Eggert */ /* Convert the double value SEC to a struct timespec. Round toward positive infinity. On overflow, return an extremal value. */ #include <config.h> #include "timespec.h" #include "intprops.h" struct timespec dtotimespec (double sec) { if (! (TYPE_MINIMUM (time_t) < sec)) return make_timespec (TYPE_MINIMUM (time_t), 0); else if (! (sec < 1.0 + TYPE_MAXIMUM (time_t))) return make_timespec (TYPE_MAXIMUM (time_t), TIMESPEC_HZ - 1); else { time_t s = sec; double frac = TIMESPEC_HZ * (sec - s); long ns = frac; ns += ns < frac; s += ns / TIMESPEC_HZ; ns %= TIMESPEC_HZ; if (ns < 0) { s--; ns += TIMESPEC_HZ; } return make_timespec (s, ns); } }