Line data    Source code

       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             : // -----------------------------------------------------------------------
      24             : 
      25         582 : sal_Bool SubTotal::SafePlus(double& fVal1, double fVal2)
      26             : {
      27         582 :     sal_Bool bOk = sal_True;
      28             :     SAL_MATH_FPEXCEPTIONS_OFF();
      29         582 :     fVal1 += fVal2;
      30         582 :     if (!::rtl::math::isFinite(fVal1))
      31             :     {
      32           0 :         bOk = false;
      33           0 :         if (fVal2 > 0.0)
      34           0 :             fVal1 = DBL_MAX;
      35             :         else
      36           0 :             fVal1 = -DBL_MAX;
      37             :     }
      38         582 :     return bOk;
      39             : }
      40             : 
      41             : 
      42          46 : sal_Bool SubTotal::SafeMult(double& fVal1, double fVal2)
      43             : {
      44          46 :     sal_Bool bOk = sal_True;
      45             :     SAL_MATH_FPEXCEPTIONS_OFF();
      46          46 :     fVal1 *= fVal2;
      47          46 :     if (!::rtl::math::isFinite(fVal1))
      48             :     {
      49           0 :         bOk = false;
      50           0 :         fVal1 = DBL_MAX;
      51             :     }
      52          46 :     return bOk;
      53             : }
      54             : 
      55             : 
      56           0 : sal_Bool SubTotal::SafeDiv(double& fVal1, double fVal2)
      57             : {
      58           0 :     sal_Bool bOk = sal_True;
      59             :     SAL_MATH_FPEXCEPTIONS_OFF();
      60           0 :     fVal1 /= fVal2;
      61           0 :     if (!::rtl::math::isFinite(fVal1))
      62             :     {
      63           0 :         bOk = false;
      64           0 :         fVal1 = DBL_MAX;
      65             :     }
      66           0 :     return bOk;
      67             : }
      68             : 
      69             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */