[Boost-users] How to type cast the boost ::variant

Subject: [Boost-users] How to type cast the boost ::variant
From: Baba Prasad (gbabu_at_[hidden])
Date: 2012-04-13 14:49:21

Dear Friends,

     I have almost similar kind of program

typedef std::vector<int> vec_name;

struct network
{
boost::variant<vec_name> net_id;
};

typedef std::vector<network>network_list;

in main

when I am extracting content of network_list vector in the following manner

// create the instance for vector

network_list net_list;

for(int i=0; i<net_list.size(); ++i)
{
unsigned char* query_str = net_list[0].net_id;
}

when I am doing like this in the above line of code the bellow error is
giving , but what I understand is I am not properly typecasting.

Please can any one will help me how get out of this problem

Error is:
error: cannot convert ‘boost::variant<odtone::mih::null,
std::vector<std::basic_string<char> > >’ to ‘unsigned char*’ in assignment

Best Regards
   BaBu

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