f3e1f476e9
Added header guards to files in directories sal/, sal/, and scripting/ Change-Id: Ieb7f224f2d27bd671618c516f47f5b7f08c1d294 Reviewed-on: https://gerrit.libreoffice.org/9582 Reviewed-by: Thomas Arnhold <thomas@arnhold.org> Tested-by: Thomas Arnhold <thomas@arnhold.org>
122 lines
3 KiB
C++
122 lines
3 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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#ifndef INCLUDED_SAL_QA_INC_VALUEEQUAL_HXX
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#define INCLUDED_SAL_QA_INC_VALUEEQUAL_HXX
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#include <sal/config.h>
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#include <math.h>
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#include <sal/mathconf.h>
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#define PREC_float 1
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#define PREC_double 2
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#define PREC_long_double 3
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template<class T>
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bool is_equal(T x, T y, sal_Int16 _nPrec)
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{
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if (!(SAL_MATH_FINITE(x) && SAL_MATH_FINITE(y))) {
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return x == y;
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}
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// due to the fact that this check looks only if both values are equal
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// we only need to look on one value
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// 14 digits will announce the checkPrecisionSize
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sal_Int32 nPRECISION;
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switch(_nPrec)
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{
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case PREC_float:
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nPRECISION = 6;
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break;
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case PREC_double:
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nPRECISION = 14;
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break;
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case PREC_long_double:
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nPRECISION = 20;
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break;
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default:
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nPRECISION = 2;
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}
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if (x < 0)
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{
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x = -x;
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}
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if (y < 0)
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{
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y = -y;
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}
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if (_nPrec != PREC_long_double)
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{
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printf("double equal: %.20f\n", x);
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printf(" %.20f\n", y);
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}
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//here nPrecOfN is the number after dot
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sal_Int32 nBeforeDot = sal_Int32( log10(x) );
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if ( nBeforeDot < 0)
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{
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nBeforeDot = 0;
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}
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//printf("nPRECISION is %d\n", nPRECISION);
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sal_Int32 nPrecOfN = -nPRECISION + nBeforeDot;
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if (_nPrec != PREC_long_double)
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printf("nPrecOfN is %" SAL_PRIdINT32 "\n", nPrecOfN);
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double nPrec = pow(0.1, -nPrecOfN);
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if (_nPrec != PREC_long_double)
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printf(" prec: %.20f\n", nPrec);
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double nDelta = fabs( x - y ) ;
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if (_nPrec != PREC_long_double)
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{
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printf(" delta: %.20f\n", nDelta);
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printf(" nPrec: %.20f\n", nPrec);
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printf("delta must be less or equal to prec\n\n");
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}
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if (nDelta > nPrec)
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{
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// values are not equal
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return false;
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}
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// values are equal
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return true;
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}
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bool is_float_equal(float x, float y)
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{
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return is_equal<float>(x, y, PREC_float);
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}
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bool is_double_equal(double x, double y)
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{
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return is_equal<double>(x, y, PREC_double);
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}
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#endif // INCLUDED_SAL_QA_INC_VALUEEQUAL_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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