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Linker Error Undefined Reference Vtable


share|improve this answer edited Oct 11 '11 at 0:40 answered Oct 11 '11 at 0:35 bdonlan 134k18185269 1 But the linker error is coming from default constructor Interval::Interval() as well. Apr 27, 2012 at 10:50pm UTC codekiddy (783) Try this, 1
// classes.h #ifndef CLASSES_H #define CLASSES_H #ifdef BUILDING_DLL #define DLL_INTERFACE __declspec(dllexport) #else #define DLL_INTERFACE __declspec(dllimport) #endif class DLL_INTERFACE baseClass { What is a Waterfall Word™? The definition for the above functionB. http://cdbug.org/undefined-reference/linker-error-undefined-reference-to-vtable.php

functionB is defined as virtual (NOT PURE VIRTUAL) so it tries to find its definition in Class A itself but you provided its definition in Class B. Is it correct to write "teoremo X statas, ke" in the sense of "theorem X states that"? Is there a way to view total rocket mass in KSP? I thought it was declared in the .h when I posted this. - Duly noted. - That was an extra bracket I added by mistake when stripping the documentation. - As http://stackoverflow.com/questions/15154980/linker-error-undefined-reference-to-vtable

Error Undefined Reference To Vtable For Qt

If you have to do it manually you are screwed. –Offirmo Mar 4 '13 at 14:46 add a comment| up vote 1 down vote If all else fails, look for duplication. Why did Fudge and the Weasleys come to the Leaky Cauldron in the PoA? inspect the .a files with a tool or something? –Alex Black Jul 7 '09 at 23:08 Where is it located?

He's missing definitions for several virtual functions, so even if you managed to get G++ to emit a vtable, the vtable itself will cause more link errors for the undefined virtuals. Try to compile your project with only a few test files, but link and use the libraries you need. Wardogs in Modern Combat Can't a user change his session information to impersonate others? Undefined Reference To `typeinfo For public: fourSided() { this -> x = 0; this -> y = 0; this -> width = 0; this -> height = 0; this -> color = BLACK; this -> point

The compiler was complaining about this one and two other constructors in which there was no error at all. The Vtable Symbol May Be Undefined Because The Class Is Missing Its Key Function Also you shall define destructor as virtual. I couldn't find a solution for 2 hours. –problemofficer Nov 24 '10 at 16:13 1 Thanks, this was exactly what was wrong with me. –Chance Mar 16 '11 at 17:14 http://stackoverflow.com/questions/7720205/linking-error-undefined-reference-to-vtable-for-xxx However as Derived overrides methods from IBase, it has vtable attached to it that will reference IBase.

Make sure they're all there and see if the result changes. –Stephen Jun 17 '10 at 21:00 add a comment| up vote 2 down vote Not to cross post but. Undefined Reference To Vtable For Destructor asked 3 years ago viewed 1075 times active 3 years ago Related 64GCC C++ Linker errors: Undefined reference to 'vtable for XXX', Undefined reference to 'ClassName::ClassName()'31Qt Linker Error: “undefined reference to g++ test.cpp -o test /tmp/ccDfCj4N.o: In function `Interval::Interval()': test.cpp:(.text._ZN8IntervalC2Ev[Interval::Interval()]+0x9): undefined reference to `vtable for Interval' /tmp/ccDfCj4N.o: In function `IntInterval::~IntInterval()': test.cpp:(.text._ZN11IntIntervalD0Ev[IntInterval::~IntInterval()]+0x1d): undefined reference to `Interval::~Interval()' /tmp/ccDfCj4N.o: In function `IntInterval::~IntInterval()': test.cpp:(.text._ZN11IntIntervalD1Ev[IntInterval::~IntInterval()]+0x1d): undefined reference This error is caused because the linker in gcc is unable to find the functions you have defined in your headers in your actual code.

The Vtable Symbol May Be Undefined Because The Class Is Missing Its Key Function

Converting Game of Life images to lists How to know if a meal was cooked with or contains alcohol? http://stackoverflow.com/questions/17865440/linker-error-undefined-reference-to-vtable No new replies allowed. Error Undefined Reference To Vtable For Qt I get the same error, but twice, if I define baseClass' constructor as 'baseClass() {}', as I did with derivedClass (see code). Undefined Reference To Vtable For Constructor In my case, there was another definition of the same class, due to a duplication of the source file.

It compiles, but the resulting library is missing necessary references 1 Strange error message when a class method is missing 0 Should the order of linked libraries make a difference in More about the author The determinant of the matrix What do you call "intellectual" jobs? didnt expect it to be that dumb. I will be sure to read that to avoid this problem occurring for a real reason. Undefined Reference To Vtable For C++

class Base { virtual void method1() { } } share|improve this answer edited May 13 '13 at 6:32 Lundin 59.9k1186157 answered May 13 '13 at 6:15 user2376546 5111 This What is the probability that they were born on different days? White Jul 7 '09 at 23:11 The third party lib files are here: /home/notroot/workspace/somelib-3/somelib/target/bin –Alex Black Jul 7 '09 at 23:13 | show 4 more comments 12 Answers 12 check my blog People searching for this error would most likely need his solution instead of yours. –Tim Dec 24 '13 at 12:00 3 -1 This may be the solution to your problem,

I have seen many classes where a virtual function is declared without curly braces. –stalin Jun 8 '15 at 16:28 @stalin if you declare if without curly braces, that Undefined Reference To Vtable Qobject How do you curtail too much customer input on website design? plugin.o: classes.cpp classes.h $(CPP) -DBUILDING_DLL -c -o [email protected] classes.cpp Apr 27, 2012 at 10:37pm UTC vlad from moscow (6539) I think the problem is that you did not define testFunc in

The vtable is there.

What to do with my out of control pre teen daughter Box around continued fraction Previous company name is ISIS, how to list on CV? Start from the bottom and build up everything again piece by piece, if possible. For-each library in order: Check unresolved dependencies and see if the lib resolves them. Undefined Reference To Vtable For Class C++ I get the error message “undefined reference to `vtable for …” although the .h and .cpp files are synchronized and checked.

Why is that ? –Mahesh Oct 11 '11 at 0:37 4 Right, because it is the constructor that needs all the methods to be implemented in order to build the share|improve this answer edited May 7 '15 at 9:03 answered Jan 12 '15 at 22:43 gluk47 791624 saved me some time! +1 –Martin Hennig Dec 9 '15 at 14:23 The inheritance chain is a little long, but here is the related source code. http://cdbug.org/undefined-reference/linker-error-undefined-reference-to-vtable-for-mainwindow.php In my case, I thought I had replaced the declaration that used char *xml as the parameter with one using the unnecessarily troublesome const char *xml, but instead, I had created

Interval a; won't work, while Interval a(1,2) will. –Dani Oct 11 '11 at 0:40 Re "Its because c++ glues the vtable to the first function" - no, C++ doesn't Clean your project. Publishing a mathematical research article on research which is already done? share|improve this answer answered Nov 3 '10 at 21:26 awallin 111 add a comment| up vote 0 down vote If you have a base class with pure virtual function, make sure

Different precision for masses of moon and earth online How to decipher Powershell syntax for text formatting? After you separated/moved the implementation to .cpp, the header file now has just the prototypes of the member functions inside the class. Compute the Eulerian number How to decipher Powershell syntax for text formatting? Running qmake -r will call moc and fix this problem.

share|improve this answer answered Sep 30 at 12:52 Yuriy 1 add a comment| up vote -1 down vote I got this error just because the name of a constructor argument differed more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Not the answer you're looking for? share|improve this answer edited Sep 6 at 14:40 Flow 15k765106 answered Jul 7 '09 at 23:11 Loki Astari 158k44229408 Are you referring to the order of the lib files

How do spaceship-mounted railguns not destroy the ships firing them? Topic archived. If you are dealing with inheritance the second google hit was what I had missed, ie. You must provide an implementation for all non-pure virtual functions you declare.

g++ -DBUILDING_DLL -c -o plugin.o classes.cpp g++ -shared -o plugin.dll plugin.o plugin.o:classes.cpp:(.text$_ZN9baseClassC2Ev[baseClass::baseClass()]+0x8): undefined reference to `vtable for baseClass' collect2: ld returned 1 exit status mingw32-make: *** [plugin.dll] Error 1 The problem main.cpp { #include #include #include "headerMachine.h" using namespace std; int main(int argc, char *argv[]) { Machine machineCall; Movies moviesCall; machineCall.menu(); moviesCall.chooseMovie(); system("pause"); return 0; } header.h #include #include The problems went away by correctly running the qt moc (meta object compiler) and compiling+including these moc-generated files correctly. fourSided::fourSided() { this -> y = 0; this -> width = 0; this -> height = 0; this -> color = BLACK; this -> point = Point( x, y ); this