1 /************************************************************************* 2 * 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * Copyright 2000, 2010 Oracle and/or its affiliates. 6 * 7 * OpenOffice.org - a multi-platform office productivity suite 8 * 9 * This file is part of OpenOffice.org. 10 * 11 * OpenOffice.org is free software: you can redistribute it and/or modify 12 * it under the terms of the GNU Lesser General Public License version 3 13 * only, as published by the Free Software Foundation. 14 * 15 * OpenOffice.org is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU Lesser General Public License version 3 for more details 19 * (a copy is included in the LICENSE file that accompanied this code). 20 * 21 * You should have received a copy of the GNU Lesser General Public License 22 * version 3 along with OpenOffice.org. If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 // MARKER(update_precomp.py): autogen include statement, do not remove 29 #include "precompiled_sc.hxx" 30 // INCLUDE --------------------------------------------------------------- 31 32 33 34 #include "subtotal.hxx" 35 #include "interpre.hxx" 36 37 // ----------------------------------------------------------------------- 38 39 sal_Bool SubTotal::SafePlus(double& fVal1, double fVal2) 40 { 41 sal_Bool bOk = sal_True; 42 SAL_MATH_FPEXCEPTIONS_OFF(); 43 fVal1 += fVal2; 44 if (!::rtl::math::isFinite(fVal1)) 45 { 46 bOk = sal_False; 47 if (fVal2 > 0.0) 48 fVal1 = DBL_MAX; 49 else 50 fVal1 = -DBL_MAX; 51 } 52 return bOk; 53 } 54 55 56 sal_Bool SubTotal::SafeMult(double& fVal1, double fVal2) 57 { 58 sal_Bool bOk = sal_True; 59 SAL_MATH_FPEXCEPTIONS_OFF(); 60 fVal1 *= fVal2; 61 if (!::rtl::math::isFinite(fVal1)) 62 { 63 bOk = sal_False; 64 fVal1 = DBL_MAX; 65 } 66 return bOk; 67 } 68 69 70 sal_Bool SubTotal::SafeDiv(double& fVal1, double fVal2) 71 { 72 sal_Bool bOk = sal_True; 73 SAL_MATH_FPEXCEPTIONS_OFF(); 74 fVal1 /= fVal2; 75 if (!::rtl::math::isFinite(fVal1)) 76 { 77 bOk = sal_False; 78 fVal1 = DBL_MAX; 79 } 80 return bOk; 81 } 82