view lib/gethrxtime.h @ 16040:b8acd8099b25

New module 'fmaf'. * lib/math.in.h (fmaf): New declaration. * lib/fmaf.c: New file. * m4/fmaf.m4: New file. * m4/math_h.m4 (gl_MATH_H): Test whethern fmaf is declared. (gl_MATH_H_DEFAULTS): Initialize GNULIB_FMAF, HAVE_FMAF, REPLACE_FMAF. * modules/math (Makefile.am): Substitute GNULIB_FMAF, HAVE_FMAF, REPLACE_FMAF. * modules/fmaf: New file. * doc/posix-functions/fmaf.texi: Mention the new module and the various bugs.
author Bruno Haible <bruno@clisp.org>
date Mon, 17 Oct 2011 23:51:21 +0200
parents 97fc9a21a8fb
children 8250f2777afc
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/* gethrxtime -- get high resolution real time

   Copyright (C) 2005, 2009-2011 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 <http://www.gnu.org/licenses/>.  */

/* Written by Paul Eggert.  */

#ifndef GETHRXTIME_H_
# define GETHRXTIME_H_ 1

# include "xtime.h"

/* Get the current time, as a count of the number of nanoseconds since
   an arbitrary epoch (e.g., the system boot time).  Prefer a
   high-resolution clock that is not subject to resetting or
   drifting.  */

# if HAVE_ARITHMETIC_HRTIME_T && HAVE_DECL_GETHRTIME
#  include <time.h>
static inline xtime_t gethrxtime (void) { return gethrtime (); }
# else
xtime_t gethrxtime (void);
# endif

#endif