troubleshooting Question

How to use STL pair with vector?

Avatar of mikrodidakt
mikrodidakt asked on
Linux OS Dev
3 Comments1 Solution3550 ViewsLast Modified:
hi!

I am trying to do a lookup method by using a vector this is what i have done
      
typedef std::pair<std::string, int> pair_t;
typedef std::string HostName;              
typedef unsigned int IPAddress;

class VectorNameServer : public NameServerInterface {
      public:      
            void insert(const HostName& hostname, const IPAddress& ipaddress);
            bool remove(const HostName& hostname);
            IPAddress lookup(const HostName& hostname) const;
            virtual ~VectorNameServer();            
      private:
            std::vector<pair_t> dns;      
};
void VectorNameServer::insert(const HostName& hostname, const IPAddress& ipaddress){
            dns.push_back(make_pair(hostname, ipaddress));      
}
IPAddress VectorNameServer::lookup(const HostName& hostname) const{
            vector<pair_t>::iterator itr = find_if(dns.begin(),dns.end(),
                  bind2nd(equal_to<pair_t>(), hostname));
}

I get a lot of error and i dont know how to use bind2nd together with the functor equal_to.
What should I do to get this work?
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