Home > Undefined Reference > Linker Error Undefined Reference To Vtable For

Linker Error Undefined Reference To Vtable For

Contents

its dtor is virtual because it is virtual in wxWindow. –VZ. Make an ASCII bat fly around an ASCII moon Spaced-out numbers What are the legal consequences for a tourist who runs out of gas on the Autobahn? Part fo the problem might be that both tools have a bit of an issue with header files, which might not always trigger a rebuild when needed. –MSalters Aug 23 at Log in to Reply Rodrigo says: June 25, 2012 at 16:32 This may cause your problem:
class Mesh
{
public:
Mesh();
~Mesh();
virtual void http://cdbug.org/undefined-reference/linker-error-undefined-reference-to-vtable.php

Reason: functionA is defined as pure virtual and its definition is provided in Class B. When you use the class, you get the linker error. 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 What I do know is that originally, the Polygon class required a source file with at least a constructor definition, which I did give. http://stackoverflow.com/questions/8830025/linker-error-undefined-reference-to-vtable-for-square

Error Undefined Reference To Vtable For Qt

UV lamp to disinfect raw sushi fish slices Spaced-out numbers Gender roles for a jungle treehouse culture Specific word to describe someone who is so good that isn't even considered in Good luck! I am adding a note because the error message is deceptive. (This was with gcc version 4.6.3.) share|improve this answer edited Apr 12 '13 at 22:25 Drew Noakes 128k74396489 answered Feb share|improve this answer answered Oct 5 '11 at 19:08 uwedolinsky 47128 add a comment| up vote 3 down vote You may take a look at this answer to an identical question

Even defining ~Destructor = default; in the header file didn't help. There are some cases where it's justified to leave out the definition for a declared function, but they are very rare. When is it okay to exceed the absolute maximum rating on a part? Undefined Reference To Vtable For C++ What is the meaning of the so-called "pregnant chad"?

Since I've been relatively knew to C++ and still learning, I haven't experimented with Polymorphism all that much. The Vtable Symbol May Be Undefined Because The Class Is Missing Its Key Function Would not allowing my vehicle to downshift uphill be fuel efficient? its just that im not sure if i did implement my constructor and destructor correctly, thanks for your reply by the way, i really appreciated it –Mary Grace Isanan Viaje Mar http://stackoverflow.com/questions/15154980/linker-error-undefined-reference-to-vtable This way you can try find the problem in your code.

The compiler output is below, including the rather strange linker error. Undefined Reference To `typeinfo For C++ Information Tutorials Reference Articles Forum Forum BeginnersWindows ProgrammingUNIX/Linux ProgrammingGeneral C++ ProgrammingLoungeJobs Home page | Privacy policy© cplusplus.com, 2000-2016 - All rights reserved - v3.1Spotted an error? referenced from compile error xcode 0 can't fix undefined reference to vtable 0 QT4 No such slot and Q_OBJECT macro 1 undefined reference to `vtable for class Related 30Undefined symbols “vtable Class C Contains: Now you're writing a Class C in which you are going to derive it from Class A.

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

Can I stop this homebrewed Lucky Coin ability from being exploited? Check that all used libraries are included and check that you are also linking their dependencies. 6. Error Undefined Reference To Vtable For Qt In my case, there was another definition of the same class, due to a duplication of the source file. Undefined Reference To Vtable For Constructor And defining a virtual destructor in this derived class made no difference (it is defined in the base class).

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 More about the author If those answers do not fully address your question, please ask a new question. 3 Implement the missing functions. –Luchian Grigore Mar 1 '13 at 10:01 6 Your imp.cpp Defining testFunc in the base class did it: 1
2
3
4
5
6
class DLL_INTERFACE baseClass { public: virtual void testFunc() {}; virtual ~baseClass() {}; }; As you can see, I also took your advice How do you curtail too much customer input on website design? Undefined Reference To Vtable For Destructor

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 How to use color ramp with torus What do you call "intellectual" jobs? Compute the Eulerian number more hot questions default about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture http://cdbug.org/undefined-reference/linker-error-undefined-reference-vtable.php It works if I define the constructors within the scope of the public.

For example, someone was saying you must have virtual non-pure destructor in base while other person was speculating that this destructor must be in its own cpp file and yet another Undefined Reference To Vtable For Qobject White Jul 7 '09 at 23:06 Yes, it is 64bit. This means a method in IBase is declared as virtual but we forgot to mark it as pure virtual OR provide its definition.

An example; BEGIN_EVENT_TABLE(PlanWindow, wxWindow) // EVT_SIZE (PlanWindow::OnSize) // Example size handler END_EVENT_TABLE() share|improve this answer answered Jul 25 '13 at 18:07 Joachim Isaksson 116k11135171 wow.

Why does Mal change his mind? Who is the highest-grossing debut director? N(e(s(t))) a string Specific word to describe someone who is so good that isn't even considered in say a classification C++ delete a pointer (free memory) What happens if one brings Undefined Reference To Vtt For share|improve this answer edited Jan 9 '12 at 8:10 answered Jan 9 '12 at 7:55 lukeinchina 8113 add a comment| up vote 5 down vote This error will also occur when

all virtual methods should be defined. Box around continued fraction 2002 research: speed of light slowing down? I keep getting a vtable linker error for a class that doesnt involve any virtual functions. http://cdbug.org/undefined-reference/linker-error-undefined-reference-to-vtable-for-mainwindow.php It happens to be the constructor, so I saw my class name and didn't make the connection.

This is just something useful that I came across as I had the error mentioned above. –Will Jul 7 '15 at 22:46 4 @MohitJain I think this is a sufficient A google shows that there is a semi-convention having it in the /usr/lib64 –Daniel A. share|improve this answer answered May 10 at 20:35 ShitalShah 10.4k15246 add a comment| up vote 1 down vote I got this error in the following scenario Consider a case where you Kio estas la diferenco inter scivola kaj scivolema?

Is it correct to write "teoremo X statas, ke" in the sense of "theorem X states that"? Better to define the functions, or remove them if he doesn't need them! –bdonlan Oct 11 '11 at 0:38 @bdonlan: Interval::~Interval is not Interval::Interval.