Function WideStringToUTF8String

common/StringUtil.cpp:508–515

	}

	std::string WideStringToUTF8String(const std::wstring_view& str)
	{
		std::string ret;
		if (!WideStringToUTF8String(ret, str))
			ret.clear();

		return ret;
	}

	bool WideStringToUTF8String(std::string& dest, const std::wstring_view& str)
	{