map using a template value
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Thread: map using a template value

  1. #1
    Join Date
    Aug 2009
    Posts
    2

    Question map using a template value

    I've written the following code, i want to use my own hash map and overwrite the find function suitably. my map values are of type packet_entry_t.

    #ifndef SIM_A_CX_SW_PACKET_STORAGE_H
    #define SIM_A_CX_SW_PACKET_STORAGE_H


    #include <map>

    #ifdef LOG_PACKET_TIMES
    #include <iostream>
    #include <fstream>
    #include <cstring>
    #endif // LOG_PACKET_TIMES

    template <class TTileAddress_t>
    class packet_storage {

    private:
    typedef packet_entry_t<TTileAddress_t> pkt_entry_t;


    typedef std::map<unsigned int, pkt_entry_t>::iterator iterator_t;

    map<unsigned int, pkt_entry_t> pkts_map;

    public:
    packet_storage();
    ~packet_storage();

    // problem 1
    typename std::map<unsigned int, pkt_entry_t>::iterator it;

    //problem 2
    std::map<unsigned int, pkt_entry_t>::iterator find(unsigned int a , unsigned int b);
    std::map<unsigned int, pkt_entry_t>::iterator find(unsigned int );

    }; // end class packet_storage
    #endif //end packet_storage_h


    i receive errors in line //problem 1 and //problem 2 as follow.

    //problem 1 erro:::
    type ‘std::map<unsigned int, packet_entry_t<TTileAddress_t>, std::less<unsigned int>, std::allocator<std:air<const unsigned int, packet_entry_t<TTileAddress_t> > > >’ is not derived from type ‘packet_storage<TTileAddress_t>’

    //problem 2 error:::
    error: type ‘std::map<unsigned int, packet_entry_t<TTileAddress_t>, std::less<unsigned int>, std::allocator<std:air<const unsigned int, packet_entry_t<TTileAddress_t> > > >’ is not derived from type ‘packet_storage<TTileAddress_t>’


    CAN ANY BODY TELL ME WHY? AND HOW CAN I SOLVE THE PROBLEM
    I SOULD BE GRATEFUL.
    THANKS
    ATEFE

  2. #2
    Lindley is offline Elite Member Power Poster
    Join Date
    Oct 2007
    Location
    Fairfax, VA
    Posts
    10,888

    Re: map using a template value


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