链接器错误 C++ 视觉工作室2005

发布于 2024-07-07 14:46:35 字数 8280 浏览 12 评论 0原文

对于我什至没有直接调用的方法，我在 Visual Studio 中收到一大堆链接器错误。我白天是一名 Java 开发人员，但我有一个需要用 C++ 完成的项目，旨在在 Windows 计算机上运行。因此，我一直在使用 Visual Studio。

基本上，我有一个操作系统项目，我添加了一个访问器方法。我将该项目编译为 .lib 文件（编译和链接正常）。

然后我有自己的项目使用该库。我已将库包含在“项目”->“属性”->“项目”下。链接器-> 输入，并在General->Set中设置相应的目录其他 Lib 目录。我已将标头包含在适当的文件中，并且我只是调用其中一个类的构造函数...甚至没有调用我创建的方法。

代码可以编译，但我收到以下大量链接器错误 - 主要是 LNK2019 和 LNK2001 错误。我尝试在不同的设置（lib、exe 等）下重新编译，链接器错误似乎只会成倍增加。当我切换回之前的设置时，错误数量仍保持在峰值。任何想法如何解决这一问题？

构建日志

构建已开始：项目：SpamCapture，配置：Debug|Win32

命令行：

正在创建临时文件“c:\SpamCapture\SpamCapture\SpamCapture\Debug\RSP0000103081740.rsp”及其内容 [ /VERBOSE:LIB /OUT:"C:\SpamCapture\SpamCapture\SpamCapture\Debug\SpamCapture.exe" /INCRMENTAL /LIBPATH:"C:\SpamCapture\Config\Debug\" /MANIFEST /MANIFESTFILE:"Debug\SpamCapture.exe .intermediate.manifest" /NODEFAULTLIB:"libcmtd.lib" /NODEFAULTLIB:"nafxcwd.lib" /DEBUG /PDB:"c:\SpamCapture\SpamCapture\SpamCapture\Debug\SpamCapture.pdb" /SUBSYSTEM:CONSOLE /MACHINE:X86 KeyCapture_Config.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib
“.\Debug\Interaction.obj”
“.\Debug\InteractionSet.obj”
“.\Debug\LogReader.obj”
“.\Debug\SpamCapture.obj”
“.\调试\stdafx.obj”
“.\Debug\SpamCapture.res”
“.\Debug\SpamCapture.exe.embed.manifest.res” ] 创建命令行“link.exe @c:\SpamCapture\SpamCapture\SpamCapture\Debug\RSP0000103081740.rsp /NOLOGO /ERRORREPORT:PROMPT”

输出窗口：

正在链接... LINK：警告 LNK4067：入口点不明确；选择“mainCRTStartup” 搜索库搜索 C:\SpamCapture\Config\Debug\KeyCapture_Config.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\lib\kernel32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\user32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\gdi32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\winspool.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\comdlg32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\advapi32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\shell32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\ole32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\oleaut32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\lib\uuid.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\odbc32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\odbccp32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\lib\msvcprtd.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\lib\MSVCRTD.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\lib\OLDNAMES.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\atlmfc\lib\mfc80ud.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\atlmfc\lib\mfcs80ud.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\msimg32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\comctl32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\shlwapi.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\atlmfc\lib\atlsd.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\wininet.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\ws2_32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\mswsock.lib：搜索 C:\SpamCapture\Config\Debug\KeyCapture_Config.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\lib\kernel32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\user32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\gdi32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\winspool.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\comdlg32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\advapi32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\shell32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\ole32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\oleaut32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\lib\uuid.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\odbc32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\odbccp32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\lib\msvcprtd.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\lib\MSVCRTD.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\lib\OLDNAMES.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\atlmfc\lib\mfc80ud.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\atlmfc\lib\mfcs80ud.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\msimg32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\comctl32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\shlwapi.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\atlmfc\lib\atlsd.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\wininet.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\ws2_32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\mswsock.lib：搜索 C:\SpamCapture\Config\Debug\KeyCapture_Config.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\lib\kernel32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\user32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\gdi32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\winspool.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\comdlg32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\advapi32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\shell32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\ole32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\oleaut32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\lib\uuid.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\odbc32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\odbccp32.lib：搜索 C:\Program Files\Microsoft Visual Studio 8\VC\lib\msvcprtd.lib：库搜索完成

链接器错误从这里开始：

KeyCapture_Config.lib(KeyCapture_ConfigDlg.obj)：错误LNK2001：无法解析的外部符号“public: virtual int __thiscall CWnd::Create(char const *,char const *,unsigned long,struct tagRECT const &,class CWnd *,unsigned int,struct CCreateContext *)" (?创建@CWnd@@UAEHPBD0KABUtagRECT@@PAV1@IPAUCCreateContext@@@Z)

...还有很多这样的

KeyCapture_Config.lib(KeyCapture_ConfigDlg.obj)：错误LNK2019：无法解析的外部符号“public: struct HICON__ * thiscall CWinApp::LoadIconA(unsigned int)const ” (?LoadIconA@CWinApp@@QBEPAUHICON@@I@Z) 在函数“public: __thiscall”中引用 CKeyCapture_ConfigDlg::CKeyCapture_ConfigDlg(类 CWnd *)" (??0CKeyCapture_ConfigDlg@@QAE@PAVCWnd@@@Z)

...还有很多这样的

(?DoDataExchange@SetupDialog@@MAEXPAVCDataExchange@@@Z) C:\SpamCapture\SpamCapture\SpamCapture\Debug\SpamCapture.exe：致命错误 LNK1120：34 无法解析的外部

结果：

构建日志保存在“file://c:\SpamCapture\SpamCapture\SpamCapture\Debug\BuildLog.htm” SpamCapture - 44 个错误，1 个警告

原文

I'm getting a whole bunch of linker errors in Visual studios for methods I'm not even calling directly. I'm a java developer by day, but I have a project I need to do in C++, intended to run on windows machines. Hence, I'm stuck messing about with Visual Studio.

Bascally, I have an os project that I added an accessor method to. I compiled that project as a .lib file (compiles and links fine).

I then have my own project that uses that lib. I've included the library under Project->Properties -> Linker -> Input, and set the appropriate directory in the General -> Additional Lib Directories. I've included the header in the appropriate file, and I'm simply calling the constructor of one of the classes...not even calling the method that I created yet.

The code compiles, but I get the following mountain of linker errors -- mostly LNK2019 and LNK2001 errors. I've tried recompiling under different settings (lib, exe, etc.), and the linker errors only seem to multiply. When I switch back to the previous settings, the number of errors remain at their peak. Any ideas how to fix this?

Build Log

Build started: Project: SpamCapture, Configuration: Debug|Win32

Command Lines:

Creating temporary file "c:\SpamCapture\SpamCapture\SpamCapture\Debug\RSP0000103081740.rsp" with contents
[
/VERBOSE:LIB /OUT:"C:\SpamCapture\SpamCapture\SpamCapture\Debug\SpamCapture.exe" /INCREMENTAL /LIBPATH:"C:\SpamCapture\Config\Debug\" /MANIFEST /MANIFESTFILE:"Debug\SpamCapture.exe.intermediate.manifest" /NODEFAULTLIB:"libcmtd.lib" /NODEFAULTLIB:"nafxcwd.lib" /DEBUG /PDB:"c:\SpamCapture\SpamCapture\SpamCapture\Debug\SpamCapture.pdb" /SUBSYSTEM:CONSOLE /MACHINE:X86 KeyCapture_Config.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib
".\Debug\Interaction.obj"
".\Debug\InteractionSet.obj"
".\Debug\LogReader.obj"
".\Debug\SpamCapture.obj"
".\Debug\stdafx.obj"
".\Debug\SpamCapture.res"
".\Debug\SpamCapture.exe.embed.manifest.res"
]
Creating command line "link.exe @c:\SpamCapture\SpamCapture\SpamCapture\Debug\RSP0000103081740.rsp /NOLOGO /ERRORREPORT:PROMPT"

Output Window:

Linking...
LINK : warning LNK4067: ambiguous entry point; selected 'mainCRTStartup'
Searching libraries
Searching C:\SpamCapture\Config\Debug\KeyCapture_Config.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\lib\kernel32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\user32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\gdi32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\winspool.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\comdlg32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\advapi32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\shell32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\ole32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\oleaut32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\lib\uuid.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\odbc32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\odbccp32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\lib\msvcprtd.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\lib\MSVCRTD.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\lib\OLDNAMES.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\atlmfc\lib\mfc80ud.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\atlmfc\lib\mfcs80ud.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\msimg32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\comctl32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\shlwapi.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\atlmfc\lib\atlsd.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\wininet.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\ws2_32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\mswsock.lib:
Searching C:\SpamCapture\Config\Debug\KeyCapture_Config.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\lib\kernel32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\user32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\gdi32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\winspool.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\comdlg32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\advapi32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\shell32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\ole32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\oleaut32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\lib\uuid.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\odbc32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\odbccp32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\lib\msvcprtd.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\lib\MSVCRTD.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\lib\OLDNAMES.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\atlmfc\lib\mfc80ud.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\atlmfc\lib\mfcs80ud.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\msimg32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\comctl32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\shlwapi.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\atlmfc\lib\atlsd.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\wininet.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\ws2_32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\mswsock.lib:
Searching C:\SpamCapture\Config\Debug\KeyCapture_Config.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\lib\kernel32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\user32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\gdi32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\winspool.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\comdlg32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\advapi32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\shell32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\ole32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\oleaut32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\lib\uuid.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\odbc32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib\odbccp32.lib:
Searching C:\Program Files\Microsoft Visual Studio 8\VC\lib\msvcprtd.lib:
Finished searching libraries

Linker Errors start here:

KeyCapture_Config.lib(KeyCapture_ConfigDlg.obj) : error LNK2001: unresolved external
symbol "public: virtual int __thiscall CWnd::Create(char const *,char const *,unsigned
long,struct tagRECT const &,class CWnd *,unsigned int,struct CCreateContext *)"
(?Create@CWnd@@UAEHPBD0KABUtagRECT@@PAV1@IPAUCCreateContext@@@Z)

... a bunch more like this

KeyCapture_Config.lib(KeyCapture_ConfigDlg.obj) : error LNK2019: unresolved external
symbol "public: struct HICON__ * thiscall CWinApp::LoadIconA(unsigned int)const "
(?LoadIconA@CWinApp@@QBEPAUHICON@@I@Z) referenced in function "public: __thiscall
CKeyCapture_ConfigDlg::CKeyCapture_ConfigDlg(class CWnd *)"
(??0CKeyCapture_ConfigDlg@@QAE@PAVCWnd@@@Z)

...a bunch more like this

(?DoDataExchange@SetupDialog@@MAEXPAVCDataExchange@@@Z)
C:\SpamCapture\SpamCapture\SpamCapture\Debug\SpamCapture.exe : fatal error LNK1120: 34 unresolved externals

Results:

Build log was saved at "file://c:\SpamCapture\SpamCapture\SpamCapture\Debug\BuildLog.htm"
SpamCapture - 44 error(s), 1 warning(s)

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萌辣 2024-07-14 14:46:35

库 KeyCapture_Config.lib 使用 MFC GUI 类（CWnd、CWinApp 等），但您将其链接到的应用程序是控制台应用程序（请参阅链接器命令行中的 /SUBSYSTEM:CONSOLE 选项）。这行不通。您应该创建一个新的 MFC GUI 应用程序项目并将库添加到该项目中。

编辑：我刚刚检查了您评论中的链接： http://dynamicnetservices.com /~will/academic/textinput/keycapture/ 看来 KeyCapture_Config 实际上是一个使用 KeyCapture DLL 的 MFC 对话框应用程序。通过直接链接到KeyCapture.lib，可以在控制台应用程序中使用KeyCapture。

回复收藏 0 原文

梦晓ヶ微光ヅ倾城 2024-07-14 14:46:35

链接错误似乎抱怨缺少很多 MFC 函数，并且链接行包括： /NODEFAULTLIB:"nafxcwd.lib" ，这将排除 MFC。您链接的库是用 MFC 构建的吗？

其他需要检查的事情是您正在使用相同的字符集（即都是多字节或都是 unicode）编译应用程序和库。

当您构建库时，没有链接步骤，因此可以将任意对象集合放入库中，而不考虑它们可能还需要什么。

回复收藏 0 原文

书信已泛黄 2024-07-14 14:46:35

您的项目似乎正在与调试多线程运行时链接。这是你的意图吗？如果是这样，则可能与您使用的 KeyCapture_Config 库不一致。

KeyCapture_Config 是第 3 方库吗？如果是这样，您是从源代码构建它还是为您提供了 lib/dll？

可能只需要对构建的 C/C++ 运行时进行一些调查即可。您可以参考 Microsoft 知识库文章，它可能有助于阐明可能的运行时构建差异。

回复收藏 0 原文

醉城メ夜风 2024-07-14 14:46:35

我认为罗布·沃克已经解决了这个问题。如果 KeyCapture_Config.lib 的文档表明没有与 MFC 的链接，请检查源以获取需要链接到 MFC 的指令。像这样的事情：

#pragma comment(lib, "nafxcwd.lib")

会导致对 MFC 的依赖，并且 KeyCapture_Config.lib 文档可能已过时。

I think that Rob Walker has nailed the problem. If the documentation for KeyCapture_Config.lib says no linkage to MFC, check the source for directives that require linkage to MFC. Something like this: