Mercurial > gnulib
view lib/dtotimespec.c @ 40227:5207eb0dcd2a
tests: Avoid havoc with "gcc -fcheck-pointer-bounds".
* tests/test-fprintf-posix2.c: Skip the test when -fcheck-pointer-bounds
is in use.
* tests/test-printf-posix2.c: Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sun, 10 Mar 2019 17:09:30 +0100 |
parents | b06060465f09 |
children |
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/* 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); } }