Problem with using libsigc++

This is a discussion on Problem with using libsigc++ within the C++ Programming forums, part of the General Programming Boards category; Hello all, i'm trying to get a program run with libsigc++. As startup i went through the walkthrough there and ...

  1. #1
    Registered User
    Join Date
    May 2007
    Posts
    6

    Problem with using libsigc++

    Hello all,

    i'm trying to get a program run with libsigc++. As startup i went through the walkthrough there and sort of used this tutorialpart for the program: http://libsigc.sourceforge.net/libsi...html/ch03.html

    Here is the code:

    myFeedback.h
    Code:
    #include <iostream>
    #include <string>
    #include "sigc++/object.h"
    #include "sigc++/signal.h"
    
    using namespace std;
    
    class myFeedback : public SigC::Object
    {
    
    	public:
    	//Constructer and Destructor
    	myFeedback();
    	~myFeedback();
    
    	void setFeedback(string);
    
    
    	sigc::signal<void> upData;
    	sigc::signal<void> upWarning;
    
    };

    myFeedback.c
    Code:
    #include "myFeedback.h"
    
    
    //******************************************************************
    // Constructor and Destructor
    //******************************************************************
    BehaviorRealizerFeedback() {};
    ~BehaviorRealizerFeedback() {};
    
    
    void setFeedback(string mydata)
    {
    	if (mydata == "data")
    	{
    		//store the data before emitting a signal
    		upData.emit();
    	}
    	else if (mydata == "warning")
    	{
    		//store the warning before emitting a signal
    		upWarning.emit();
    	}
    	else
    	{
    		cout << "Unknown Feedbacktype named " << type << " ." <<endl;
    	};
    
    };
    It is not a standalone program, but trying to compile the project (this file), i get the error that the signals are "not declared in this scope" within "setFeedback", but i declared the signals in the header, like in the example in the tutorial. Anyone got some help?

    Thank you
    Hork83

  2. #2
    and the hat of wrongness Salem's Avatar
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    > myFeedback.c
    I thought this was supposed to be a C++ program (not a C program).

    What exact compile command line and error message did you get?
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
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