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/* $Id: llround.cpp $ */
/** @file
* IPRT - No-CRT - llround().
*/
/*
* Copyright (C) 2022-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* 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, in version 3 of the
* License.
*
* 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>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#define IPRT_NO_CRT_FOR_3RD_PARTY
#include "internal/nocrt.h"
#include <iprt/nocrt/math.h>
#include <iprt/nocrt/limits.h>
#include <iprt/nocrt/fenv.h>
#undef llround
long long RT_NOCRT(llround)(double rd)
{
if (isfinite(rd))
{
rd = RT_NOCRT(round)(rd);
if (rd >= (double)LLONG_MIN && rd <= (double)LLONG_MAX)
return (long long)rd;
RT_NOCRT(feraiseexcept)(FE_INVALID);
return rd > 0.0 ? LLONG_MAX : LLONG_MIN;
}
RT_NOCRT(feraiseexcept)(FE_INVALID);
if (RT_NOCRT(isinf)(rd) && rd < 0.0)
return LLONG_MIN;
return LLONG_MAX;
}
RT_ALIAS_AND_EXPORT_NOCRT_SYMBOL(llround);
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