84d9c625bf
- Fix for possible unset uid/gid in toproto - Fix for default mtree style - Update libelf - Importing libexecinfo - Resynchronize GCC, mpc, gmp, mpfr - build.sh: Replace params with show-params. This has been done as the make target has been renamed in the same way, while a new target named params has been added. This new target generates a file containing all the parameters, instead of printing it on the console. - Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org) get getservbyport() out of the inner loop Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
/* $NetBSD: s_nearbyint.c,v 1.3 2013/02/11 02:45:27 christos Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2004 David Schultz <das@FreeBSD.ORG>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#if 0
|
|
__FBSDID("$FreeBSD: src/lib/msun/src/s_nearbyint.c,v 1.2 2008/01/14 02:12:06 das Exp $");
|
|
#else
|
|
__RCSID("$NetBSD: s_nearbyint.c,v 1.3 2013/02/11 02:45:27 christos Exp $");
|
|
#endif
|
|
|
|
#include <machine/ieee.h>
|
|
#include <fenv.h>
|
|
#include <math.h>
|
|
|
|
/*
|
|
* We save and restore the floating-point environment to avoid raising
|
|
* an inexact exception. We can get away with using fesetenv()
|
|
* instead of feclearexcept()/feupdateenv() to restore the environment
|
|
* because the only exception defined for rint() is overflow, and
|
|
* rounding can't overflow as long as emax >= p.
|
|
*/
|
|
#define DECL(type, fn, rint) \
|
|
type \
|
|
fn(type x) \
|
|
{ \
|
|
type ret; \
|
|
fenv_t env; \
|
|
\
|
|
fegetenv(&env); \
|
|
ret = rint(x); \
|
|
fesetenv(&env); \
|
|
return (ret); \
|
|
}
|
|
|
|
DECL(double, nearbyint, rint)
|
|
DECL(float, nearbyintf, rintf)
|
|
#ifdef __HAVE_LONG_DOUBLE
|
|
DECL(long double, nearbyintl, rintl)
|
|
#endif
|