sc/source/core/tool/subtotal.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include "subtotal.hxx"
  21 #include "interpre.hxx"
  22
  23 bool SubTotal::SafePlus(double& fVal1, double fVal2)
  24 {
  25     bool bOk = true;
  26     SAL_MATH_FPEXCEPTIONS_OFF();
  27     fVal1 += fVal2;
  28     if (!::rtl::math::isFinite(fVal1))
  29     {
  30         bOk = false;
  31         if (fVal2 > 0.0)
  32             fVal1 = DBL_MAX;
  33         else
  34             fVal1 = -DBL_MAX;
  35     }
  36     return bOk;
  37 }
  38
  39 bool SubTotal::SafeMult(double& fVal1, double fVal2)
  40 {
  41     bool bOk = true;
  42     SAL_MATH_FPEXCEPTIONS_OFF();
  43     fVal1 *= fVal2;
  44     if (!::rtl::math::isFinite(fVal1))
  45     {
  46         bOk = false;
  47         fVal1 = DBL_MAX;
  48     }
  49     return bOk;
  50 }
  51
  52 bool SubTotal::SafeDiv(double& fVal1, double fVal2)
  53 {
  54     bool bOk = true;
  55     SAL_MATH_FPEXCEPTIONS_OFF();
  56     fVal1 /= fVal2;
  57     if (!::rtl::math::isFinite(fVal1))
  58     {
  59         bOk = false;
  60         fVal1 = DBL_MAX;
  61     }
  62     return bOk;
  63 }
  64
  65 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */