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Linker Error Undefined Reference To Class Constructor


I just created a new class. Thank you very much !kritchie( 2014-10-27 13:16:07 -0500 )editadd a comment Your Answer Please start posting anonymously - your entry will be published after you log in or create a new In my case, I changed: struct FUN { virtual double operator()(double x, double y) const ; }; to struct FUN { virtual double operator()(double x, double y) const = 0; }; Any help with this problem? http://cdbug.org/undefined-reference/linker-error-undefined-reference-to-constructor.php

Whip the out the ol' shell and see what you can come up with. No doubt this is a common C++ newbie mistake. share|improve this answer answered Mar 22 '13 at 20:31 bizzehdee 7,15642758 add a comment| up vote 0 down vote I had the same issue but mine was because I'm using Eclipse Mar 7, 2011 at 3:30am UTC uTil (17) Oh I feel as though I might have left out something crucial: I infact over wrote the assignment operator function in strSet: 1

Undefined Reference To Constructor And Destructor C++

Posted 30 November 2011 - 04:16 PM Hm, alright. To be more precise this is not the only error I am getting since I also get a similar "undefined reference" error in my struct definitions: /tmp/ccuWFpZX.o: In function 'eleOfSet::eleOfSet()': setcalc.cpp:(.text._ZN8eleOfSetC1Ev[eleOfSet::eleOfSet()] The code for strset.cpp and strset (at least for the constructors) should be written in the first post.

Mar 7, 2011 at 2:01pm UTC hanst99 (2869) I think he doesn't really know what exactly linking is yet. The actual problem seems to be that you are not including Filter.cpp in your build. I expected explicitly telling the methods in MusicMetaDatter.cpp would fix the error but it didn't. Undefined Reference To Constructor Template Mar 7, 2011 at 3:06am UTC hanst99 (2869) No, don't do that.

Move your mouse over the bar and click Did you find this article helpful? Undefined Reference To Default Constructor But the actual contents of the function, which are probably located in a corresponding cpp file, are not compiled and thus available at link time. How do you grow in a skill when you're the company lead in that area? http://stackoverflow.com/questions/18173015/undefined-reference-to-constructor-which-is-defined So I had to manually add the new .h and .cpp files to the corresponding Makefile.am, and then do a project > reconfigure project, rebuild, an that was it.

So far I have: MetaDatterTest.cpp #include #include "Leomedia.h" #include using namespace std; using namespace Leomedia; int main() { MusicMetaDatter meta("troll", mp3, Leomedia::read); return 0; } Leomedia.h #include "MusicMetaDatter.h" #ifndef C++ Undefined Reference To Constructor Inheritance As a note, it's also necessary to compile a definition of the superclass destructor if you declare it as virtual. 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 Heh-heh. –delicateLatticeworkFever Aug 11 '13 at 15:02 add a comment| 1 Answer 1 active oldest votes up vote 6 down vote accepted For posterity, the issue was that I defined the

Undefined Reference To Default Constructor

If so, you're compiling the project in a wrong way. http://www.cplusplus.com/forum/beginner/38097/ include_directories(${catkin_INCLUDE_DIRS} src/sbg_ins/) Minor, but it is convention to list the include dir of the current package before any other includes. Undefined Reference To Constructor And Destructor C++ In it, you'll get: The week's top questions and answers Important community announcements Questions that need answers see an example newsletter By subscribing, you agree to the privacy policy and terms Undefined Reference To Class C++ You either have to a) Create an empty body that will be called if no child class reimplements the function b) Create a child class that implements the virtual functions and

Are all the headers and source files in the same folder? click site 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? more hot questions question feed lang-cpp about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation I added them but I'm still having the same issue. C++ Undefined Reference To Class Function

Have you any other tips? The number of methods are the same 4. Was This Post Helpful? 0 Back to top MultiQuote Quote + Reply #5 blackcompe D.I.C Lover Reputation: 1158 Posts: 2,538 Joined: 05-May 05 Re: Undefined References to Constructors and Destructors. http://cdbug.org/undefined-reference/linker-error-undefined-reference-class.php Linked 712 What is an undefined reference/unresolved external symbol error and how do I fix it?

C++ values completely different things, and you'll only hurt your C++ experience if you try to program the same way as you did in Java. –Xeo Aug 3 '12 at 8:44 C++ Undefined Reference To Superclass Constructor This is an incorrect way to fix this problem. Good luck!

If your using GCC, then maybe it has something to do with the way your directory structure is set up.

Check out the FAQ! The MOC file was not generated by qmake. Was This Post Helpful? 0 Back to top MultiQuote Quote + Reply #9 Crimson Wings D.I.C Head Reputation: 13 Posts: 215 Joined: 11-July 09 Re: Undefined References to Constructors and C++ Undefined Reference To Destructor That would work around identically named headers existing in other packages getting resolved before your own.

What examples are there of funny connected waypoint names or airways that tell a story? After re-adding the relevant files, the problem went away. Join them; it only takes a minute: Sign up Undefined reference to class constructor, including .cpp file fixes up vote 14 down vote favorite 1 The problem I am having is http://cdbug.org/undefined-reference/linker-error-undefined-reference-to-template-class.php Published by Svenn-Arne Dragly I'm a physicist and programmer, writing about the stuff I figure out as I go.

Have you tried creating the functions in the namespace? : MusicMetaDatter.cpp #include "MusicMetaDatter.h" namespace Leomedia { MusicMetaDatter::MusicMetaDatter(std::string fileName, AudioFileType type, FileMode mode) { this -> md_fileName = fileName; this -> md_fileType Why don't we construct a spin 1/4 spinor? Log in to Reply george says: June 16, 2013 at 17:33 Thnx!!u helped me very much! 🙂 Log in to Reply Gianni Comoretto says: July 30, 2013 at 18:27 I hit So CATKIN_DEPENDS sensor_msgs roscpp tf.

What to do when you've put your co-worker on spot by being impatient? This is what ideally happens when you build your program: Compile: StaticObject.cpp -> StaticObject.o Compile: main.cpp -> main.o Link: StaticObject.o, main.o -> main_program Although there are ways in gcc/g++ to skip Specific word to describe someone who is so good that isn't even considered in say a classification How to know if a meal was cooked with or contains alcohol? Mar 7, 2011 at 3:45pm UTC Disch (13766) An IDE should do that for you. (create new project, add file to project, ...) +1 Coding without an IDE is masochism.

Please sign in help tags users badges ALL UNANSWERED Ask Your Question 0 C++ undefined reference on constructor edit C++ catkin-cmake indigo asked 2014-10-26 21:12:23 -0500 kritchie 15 ●3 ●4 ●6 If I compile that file together with a driver that invokes the constructor: cpuInput *cpu = new cpuInput(); Of course I get an error from g++: demo.cpp:15:31: error: no matching function N(e(s(t))) a string Box around continued fraction Can I stop this homebrewed Lucky Coin ability from being exploited? I will include it now and see if it somehow works.

The reason why I wrote this is because I know it is customary to write #include to use strcmp function. Equation which has to be solved with logarithms Is it possible to keep publishing under my professional (maiden) name, different from my married legal name? contact us First time here? Publishing images for CSS in DXA HTML Design zip Just a little change and we're talking physical education Why aren't there direct flights connecting Honolulu, Hawaii and London, UK?

I haven't used Netbeans much, but there should be an option to add all the .cpp files into a single project, so that Netbeans takes care of linking all the .o How do you curtail too much customer input on website design?