 |  |  |  |  |  |  |  |
VC++ .net Build problem
Please support our C++ advertiser: Intel Parallel Studio Home
Thread Solved |
I'm a new user to Visual Studio .Net, writing most of my projects in C++. I have this problem with the OO paradigm when I tried to apply it to my projects. Variables for classes which I described in eg. dXmanager.h fails to appear in my dXmanager.cpp; when I try to compiled them it just say that variable ABC is not found in dXmanager.cpp even though I have declared it in the classes in dXmanager.h. I ended up having to declare them again in dXmanager.cpp.
Secondly after I have built all the files which I needed, compiling them individually is fine with no errors. But when I tried building the whole solution there seem to be problems linking functions in my classes (in dXmanager.cpp) to the main windows program (in winmain.cpp). I kept getting the error LNK 2019 unresolved external symbol "<classname>::<functionname>" referenced in <file_name|function_name>. Is there something which I am missing here? Something which I must do to enable linking between the classes files with their header files and these classes files with the main program file?
Thanks for helping.
Secondly after I have built all the files which I needed, compiling them individually is fine with no errors. But when I tried building the whole solution there seem to be problems linking functions in my classes (in dXmanager.cpp) to the main windows program (in winmain.cpp). I kept getting the error LNK 2019 unresolved external symbol "<classname>::<functionname>" referenced in <file_name|function_name>. Is there something which I am missing here? Something which I must do to enable linking between the classes files with their header files and these classes files with the main program file?
Thanks for helping.
•
•
Join Date: Jun 2005
Posts: 1,496
Reputation: 
Solved Threads: 104
•
•
•
•
Originally Posted by RogerThomasTan
I'm a new user to Visual Studio .Net, writing most of my projects in C++. I have this problem with the OO paradigm when I tried to apply it to my projects. Variables for classes which I described in eg. dXmanager.h fails to appear in my dXmanager.cpp; when I try to compiled them it just say that variable ABC is not found in dXmanager.cpp even though I have declared it in the classes in dXmanager.h. I ended up having to declare them again in dXmanager.cpp.
C++ Syntax (Toggle Plain Text)
•
•
•
•
Originally Posted by RogerThomasTan
Secondly after I have built all the files which I needed, compiling them individually is fine with no errors. But when I tried building the whole solution there seem to be problems linking functions in my classes (in dXmanager.cpp) to the main windows program (in winmain.cpp). I kept getting the error LNK 2019 unresolved external symbol "<classname>::<functionname>" referenced in <file_name|function_name>. Is there something which I am missing here? Something which I must do to enable linking between the classes files with their header files and these classes files with the main program file?
Yes I have included the #include "dsmanager.h" at the beginning of both the dsmanager.cpp and the winmain.cpp. Also yes I can see all 3 files (dsmanager.h, dsmanager.cpp and winmain.cpp) in my Solution Explorer Window of .NET.
•
•
Join Date: Jun 2005
Posts: 1,496
Reputation:
Solved Threads: 104
Zip your code without the debug and release folders and attach here. That will help in figuring things out.
Please find zip file attached. Thanks a lot for your help btw, anyhow it is a directx application but I doubt that should be the problem, more like how visual studio .net is handling the linkage since all files compile fine indivdually. Once again thanks!
•
•
Join Date: Jun 2005
Posts: 1,496
Reputation:
Solved Threads: 104
There are two other files:
dsutil.h and dsutil.cpp that are not included in the project. Dont you need them? adding them helps reduce the number of errors from 10 to 6, the remaining 6 are still errors caused by unable to link to the functions from winmain.cpp to functions in dsmanager.h and dsmanager.cpp
•
•
Join Date: Jun 2005
Posts: 1,496
Reputation:
Solved Threads: 104
Change the function in the dsmanager.cpp file to
Similar for the other functions.
C++ Syntax (Toggle Plain Text)
C++ Syntax (Toggle Plain Text)
 |
Similar Threads
- vb.net NEWBIE!! Triangle problem!! (VB.NET)
Other Threads in the C++ Forum
- Previous Thread: need help with rand
- Next Thread: Need help with 'Dev C++' error report
| Thread Tools | Search this Thread |
You need to join our community in order to build your list of favorite forums. You can visit the forum index for a listing of all forums.
Related Forum Features
Latest C++ Posts
- Today's Posts
- Unanswered Threads
api array arrays based binary c++ c/c++ calculator char char* class classes code coding compile console conversion convert count database delete deploy desktop developer directshow dll download dynamic dynamiccharacterarray email encryption error file forms fstream function functions game givemetehcodez google graph gui homeworkhelp iamthwee ifstream input int java lib linkedlist linker linux list loop looping loops map math matrix memory multiple news number numbertoword output pointer problem program programming project python random read recursion recursive reference return rpg sorting string strings temperature template templates test text text-file tree unix url variable vector video visual visualstudio win32 windows winsock wordfrequency wxwidgets
