/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#include "subtotal.hxx"
#include "interpre.hxx"

bool SubTotal::SafePlus(double& fVal1, double fVal2)
{
    bool bOk = true;
    SAL_MATH_FPEXCEPTIONS_OFF();
    fVal1 += fVal2;
    if (!::rtl::math::isFinite(fVal1))
    {
        bOk = false;
        if (fVal2 > 0.0)
            fVal1 = DBL_MAX;
        else
            fVal1 = -DBL_MAX;
    }
    return bOk;
}

bool SubTotal::SafeMult(double& fVal1, double fVal2)
{
    bool bOk = true;
    SAL_MATH_FPEXCEPTIONS_OFF();
    fVal1 *= fVal2;
    if (!::rtl::math::isFinite(fVal1))
    {
        bOk = false;
        fVal1 = DBL_MAX;
    }
    return bOk;
}

bool SubTotal::SafeDiv(double& fVal1, double fVal2)
{
    bool bOk = true;
    SAL_MATH_FPEXCEPTIONS_OFF();
    fVal1 /= fVal2;
    if (!::rtl::math::isFinite(fVal1))
    {
        bOk = false;
        fVal1 = DBL_MAX;
    }
    return bOk;
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */