66 lines
2.3 KiB
C++
66 lines
2.3 KiB
C++
/*
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* (c) Copyright Ascensio System SIA 2010-2023
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*
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* This program is a free software product. You can redistribute it and/or
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* modify it under the terms of the GNU Affero General Public License (AGPL)
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* version 3 as published by the Free Software Foundation. In accordance with
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* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
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* that Ascensio System SIA expressly excludes the warranty of non-infringement
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* of any third-party rights.
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*
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* This program is distributed WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
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* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
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*
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* You can contact Ascensio System SIA at 20A-6 Ernesta Birznieka-Upish
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* street, Riga, Latvia, EU, LV-1050.
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*
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* The interactive user interfaces in modified source and object code versions
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* of the Program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU AGPL version 3.
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*
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* Pursuant to Section 7(b) of the License you must retain the original Product
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* logo when distributing the program. Pursuant to Section 7(e) we decline to
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* grant you any rights under trademark law for use of our trademarks.
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*
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* All the Product's GUI elements, including illustrations and icon sets, as
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* well as technical writing content are licensed under the terms of the
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* Creative Commons Attribution-ShareAlike 4.0 International. See the License
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* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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*
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*/
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#ifdef __ANDROID__
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#include <stdio.h>
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char* gcvt(double x, int n, char* b)
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{
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sprintf(b, "%.*g", n, x);
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return b;
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}
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#endif
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#include "CommonInclude.h"
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#include "Common.h"
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#ifndef _gcvt
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#include "stdlib.h"
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#define _CVTBUFSIZE 128
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#define _gcvt gcvt
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#endif
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#define DBL_MAX 15
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#define DBL_MAXDIG10 17
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std::wstring OOX::Spreadsheet::SpreadsheetCommon::WriteDouble(double dVal)
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{
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//согласно http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2005.pdf
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//DBL_MAX = 15 digits, DBL_MAXDIG10 = 17 digits.
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char buffer[_CVTBUFSIZE];
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_gcvt( dVal, DBL_MAXDIG10, buffer );
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std::string sRes(buffer);
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int nLength = sRes.length();
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if(nLength > 0 && '.' == sRes[nLength - 1])
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sRes = sRes.substr(0, nLength - 1);
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return std::wstring(sRes.begin(), sRes.end());
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}
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