66 lines
1.8 KiB
C++
66 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include "subtotal.hxx"
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#include "interpre.hxx"
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bool SubTotal::SafePlus(double& fVal1, double fVal2)
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{
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bool bOk = true;
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SAL_MATH_FPEXCEPTIONS_OFF();
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fVal1 += fVal2;
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if (!::rtl::math::isFinite(fVal1))
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{
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bOk = false;
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if (fVal2 > 0.0)
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fVal1 = DBL_MAX;
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else
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fVal1 = -DBL_MAX;
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}
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return bOk;
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}
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bool SubTotal::SafeMult(double& fVal1, double fVal2)
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{
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bool bOk = true;
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SAL_MATH_FPEXCEPTIONS_OFF();
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fVal1 *= fVal2;
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if (!::rtl::math::isFinite(fVal1))
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{
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bOk = false;
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fVal1 = DBL_MAX;
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}
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return bOk;
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}
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bool SubTotal::SafeDiv(double& fVal1, double fVal2)
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{
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bool bOk = true;
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SAL_MATH_FPEXCEPTIONS_OFF();
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fVal1 /= fVal2;
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if (!::rtl::math::isFinite(fVal1))
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{
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bOk = false;
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fVal1 = DBL_MAX;
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}
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return bOk;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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