FW: compile fails with g++ 3.4.3

FW: compile fails with g++ 3.4.3

[Kolev, Nik]

Hi,

I am trying to build a shared library using g++ 3.4.3
Up until now I was successfully building with 3.2.3 version of the compiler.

Since I do not have much time fixing the code to please 3.4.3 is there a way to tell 3.4.3 (via an option) to ignore certain "flaws" in the code? The first error I am getting is:

SiteClusterFinder.h:62: error: type `std::list<SiteClusterFinder<T>::E, std::allocator<SiteClusterFinder<T>::E> >' is not derived from type `SiteClusterFinder<T>'
SiteClusterFinder.h:62: error: ISO C++ forbids declaration of `iterator' with no type

thanks,
nik

Re: FW: compile fails with g++ 3.4.3

[corey taylor]

How did you declare the iterator?

corey

On 6/17/05, Kolev, Nik <NKolev@trueposition.com> wrote:
> Hi,
> 
> I am trying to build a shared library using g++ 3.4.3
> Up until now I was successfully building with 3.2.3 version of the compiler.
> 
> Since I do not have much time fixing the code to please 3.4.3 is there a way to tell 3.4.3 (via an option) to ignore certain "flaws" in the code? The first error I am getting is:
> 
> SiteClusterFinder.h:62: error: type `std::list<SiteClusterFinder<T>::E, std::allocator<SiteClusterFinder<T>::E> >' is not derived from type `SiteClusterFinder<T>'
> SiteClusterFinder.h:62: error: ISO C++ forbids declaration of `iterator' with no type
> 
> thanks,
> nik
> 
>

RE: FW: compile fails with g++ 3.4.3

[Kolev, Nik]

I have not written the code and cannot answer specific questions - just building it as a shared library that I then call from within a java app using JNI. Here's how the template class is set up:

template <class T>
class SiteClusterFinder
{
private:

    // Entry 
    class E
    {
    public:
        // Constructor
        E(double _x, double _y, T _userData, SiteClusterFinder *finder)
            : x(_x), y(_y), userData(_userData), finder(finder) 
        {}

        // Less operator
        bool operator < (const E& e) const
        {
            if(finder->sortByX)
                return (x < e.x); 
            else
                return (y < e.y);
        }
        
        // x and y coordinates
        double x, y;

        // User data (keys)
        T userData;

        // Cluster finder
        SiteClusterFinder *finder;
    };

    typedef std::list<E> L;
    typedef L::iterator I;   // The error happens here
    typedef std::list<L> LL;
    typedef LL::iterator II;

public:

    friend class E;

    /**
     * Adds point to a cluster finder
     *
     * @param _x x coordinate of a new point
     * @param _y y coordinate of a new point
     * @param _userData data that identify a point to a user
     * @param _finder site cluster finder
     */
    void add(double _x, double _y, T _userData, SiteClusterFinder *_finder) 
    { 
        data.push_back(E(_x, _y, _userData, _finder)); 
    }

    /**
     * Removes all points from a cluster finder
     */
    void clear() { data.clear(); }

private:
    
    // Indicates how sorting has to be done in E
    bool sortByX;

    // Storage of points
    L data;

    //
    // More methods/members
    //
};

#endif


>How did you declare the iterator?
>
>corey

On 6/17/05, Kolev, Nik <NKolev@trueposition.com> wrote:
> Hi,
> 
> I am trying to build a shared library using g++ 3.4.3
> Up until now I was successfully building with 3.2.3 version of the compiler.
> 
> Since I do not have much time fixing the code to please 3.4.3 is there a way to tell 3.4.3 (via an option) to ignore certain "flaws" in the code? The first error I am getting is:
> 
> SiteClusterFinder.h:62: error: type `std::list<SiteClusterFinder<T>::E, std::allocator<SiteClusterFinder<T>::E> >' is not derived from type `SiteClusterFinder<T>'
> SiteClusterFinder.h:62: error: ISO C++ forbids declaration of `iterator' with no type
> 
> thanks,
> nik
> 
>

Re: FW: compile fails with g++ 3.4.3

[corey taylor]

The issue is a key issue addressed in the 3.4 release so you won't be
able to simply ignore the code.

The error message is annoyingly confusing sometimes, but it means that
you are missing the 'typename' keyword in front of the type
declaration.

typedef typename L::iterator l;

corey

On 6/17/05, Kolev, Nik <NKolev@trueposition.com> wrote:
> I have not written the code and cannot answer specific questions - just building it as a shared library that I then call from within a java app using JNI. Here's how the template class is set up:
> 
> template <class T>
> class SiteClusterFinder
> {
> private:
> 
>     // Entry
>     class E
>     {
>     public:
>         // Constructor
>         E(double _x, double _y, T _userData, SiteClusterFinder *finder)
>             : x(_x), y(_y), userData(_userData), finder(finder)
>         {}
> 
>         // Less operator
>         bool operator < (const E& e) const
>         {
>             if(finder->sortByX)
>                 return (x < e.x);
>             else
>                 return (y < e.y);
>         }
> 
>         // x and y coordinates
>         double x, y;
> 
>         // User data (keys)
>         T userData;
> 
>         // Cluster finder
>         SiteClusterFinder *finder;
>     };
> 
>     typedef std::list<E> L;
>     typedef L::iterator I;   // The error happens here
>     typedef std::list<L> LL;
>     typedef LL::iterator II;
> 
> public:
> 
>     friend class E;
> 
>     /**
>      * Adds point to a cluster finder
>      *
>      * @param _x x coordinate of a new point
>      * @param _y y coordinate of a new point
>      * @param _userData data that identify a point to a user
>      * @param _finder site cluster finder
>      */
>     void add(double _x, double _y, T _userData, SiteClusterFinder *_finder)
>     {
>         data.push_back(E(_x, _y, _userData, _finder));
>     }
> 
>     /**
>      * Removes all points from a cluster finder
>      */
>     void clear() { data.clear(); }
> 
> private:
> 
>     // Indicates how sorting has to be done in E
>     bool sortByX;
> 
>     // Storage of points
>     L data;
> 
>     //
>     // More methods/members
>     //
> };
> 
> #endif
> 
> 
> >How did you declare the iterator?
> >
> >corey
> 
> On 6/17/05, Kolev, Nik <NKolev@trueposition.com> wrote:
> > Hi,
> >
> > I am trying to build a shared library using g++ 3.4.3
> > Up until now I was successfully building with 3.2.3 version of the compiler.
> >
> > Since I do not have much time fixing the code to please 3.4.3 is there a way to tell 3.4.3 (via an option) to ignore certain "flaws" in the code? The first error I am getting is:
> >
> > SiteClusterFinder.h:62: error: type `std::list<SiteClusterFinder<T>::E, std::allocator<SiteClusterFinder<T>::E> >' is not derived from type `SiteClusterFinder<T>'
> > SiteClusterFinder.h:62: error: ISO C++ forbids declaration of `iterator' with no type
> >
> > thanks,
> > nik
> >
> >
> 
> 
>