[GH-ISSUE #451] Chinese in workbook_add_worksheet cause crash #353

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opened 2026-05-05 12:11:35 -06:00 by gitea-mirror · 0 comments

gitea-mirror commented

2026-05-05 12:11:35 -06:00

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Originally created by @xuxiaochun025 on GitHub (Aug 9, 2024).
Original GitHub issue: https://github.com/jmcnamara/libxlsxwriter/issues/451

libxlsxwriter: Reporting Problems

std::string G2U(const std::string& gbk)
{
	int nwLen = ::MultiByteToWideChar(CP_ACP, 0, gbk.c_str(), -1, NULL, 0);
	wchar_t* pwBuf = new wchar_t[nwLen + 1];
	ZeroMemory(pwBuf, nwLen * 2 + 2);
	::MultiByteToWideChar(CP_ACP, 0, gbk.c_str(), static_cast<int>(gbk.length()), pwBuf, nwLen);
	int nLen = ::WideCharToMultiByte(CP_UTF8, 0, pwBuf, -1, NULL, NULL, NULL, NULL);
	char* pBuf = new char[nLen + 1];
	ZeroMemory(pBuf, nLen + 1);
	::WideCharToMultiByte(CP_UTF8, 0, pwBuf, nwLen, pBuf, nLen, NULL, NULL);
	std::string retStr(pBuf);
	delete[]pwBuf;
	delete[]pBuf;
	pwBuf = NULL;
	pBuf = NULL;
	return retStr;
}

std::string fileName = "报警信息.xlsx";
const char* file_path = "test.xlsx";
lxw_workbook* workbook = workbook_new(file_path);
lxw_worksheet* worksheet = workbook_add_worksheet(workbook, G2U(fileName).data());

However, the program encounters a crash at last line consistently. Interestingly, the same program runs without any issues on other machines. What could be the reason for this discrepancy?

Originally created by @xuxiaochun025 on GitHub (Aug 9, 2024). Original GitHub issue: https://github.com/jmcnamara/libxlsxwriter/issues/451 # libxlsxwriter: Reporting Problems ``` std::string G2U(const std::string& gbk) { int nwLen = ::MultiByteToWideChar(CP_ACP, 0, gbk.c_str(), -1, NULL, 0); wchar_t* pwBuf = new wchar_t[nwLen + 1]; ZeroMemory(pwBuf, nwLen * 2 + 2); ::MultiByteToWideChar(CP_ACP, 0, gbk.c_str(), static_cast<int>(gbk.length()), pwBuf, nwLen); int nLen = ::WideCharToMultiByte(CP_UTF8, 0, pwBuf, -1, NULL, NULL, NULL, NULL); char* pBuf = new char[nLen + 1]; ZeroMemory(pBuf, nLen + 1); ::WideCharToMultiByte(CP_UTF8, 0, pwBuf, nwLen, pBuf, nLen, NULL, NULL); std::string retStr(pBuf); delete[]pwBuf; delete[]pBuf; pwBuf = NULL; pBuf = NULL; return retStr; } std::string fileName = "报警信息.xlsx"; const char* file_path = "test.xlsx"; lxw_workbook* workbook = workbook_new(file_path); lxw_worksheet* worksheet = workbook_add_worksheet(workbook, G2U(fileName).data()); ``` However, the program encounters a crash at last line consistently. Interestingly, the same program runs without any issues on other machines. What could be the reason for this discrepancy?