Hi i am new to boost. i have written a code. can any one guide me whats the issue with this code. It gives an error when I assign the File pointer to a Global poiter. " h_file = file; h_str = str; " Can any one guide me whats the issue with this and how cna i solve this issue. thanks, Asad // Accelor-test.cpp : Defines the entry point for the console application. // #include <iostream> #include <string> #include <fstream> #include <string> #include <vector> #include <iostream> #include <iterator> #include <functional> #include <boost/asio.hpp> #include <boost/algorithm/string/classification.hpp> #include <boost/algorithm/string/split.hpp> #include <boost/algorithm/string/find_iterator.hpp> #include <boost/thread/thread.hpp> using boost::asio::ip::tcp; using namespace std; using namespace boost; std::fstream h_file; int hb; int cnt; tcp::iostream h_str; //boost::mutex mutex; void Accelor_test() { std::cout<<"\nAPP started ...\n"; char ver[100]; char s1[100]; vector<std::string> strng,st,u_p; //int ef; h_str.read(ver,sizeof(ver)); std::cout<<" INBOUND : Version read : " <<ver<<std::endl; h_file.getline(s1,sizeof(s1)); std::cout<<s1<<std::endl; } void send_HB() { std::cout<<"\nHeart Beat Started..."; // boost::mutex::scoped_lock lock(mutex); char h_b[] = "HB\n"; for(;;) { boost::xtime xt; boost::xtime_get(&xt, boost::TIME_UTC); xt.sec += 1; h_str.write(h_b,sizeof(h_b)); boost::thread::sleep(xt); std::cout <<"OUTBOUND : HB ,"<< ++cnt << std::endl; } } int main(int argc, char* argv[]) { std::fstream file = std::fstream("inttest_sample.csv",std::fstream::in); if(h_file == NULL) { std::cout<<"File not found"; } char s1[100]; vector<std::string> conf,connection,u_p; int ef; h_file.getline(s1,sizeof(s1)); std::cout<<"s1 = "<<s1<<endl; std::cout<<"Split Conf"; split(conf, s1, is_any_of(","), token_compress_on); split(connection, conf[0], is_any_of(":"), token_compress_on); tcp::iostream str(connection[0],connection[1]); h_file = file; h_str = str; boost::thread thrd_hb(&send_HB); boost::thread thrd_acc(&Accelor_test); thrd_hb.join(); thrd_acc.join(); file.close(); str.close(); //std::cout<<"kjdshkjf"; } -- View this message in context: http://old.nabble.com/Can-any-one-help-me-with-this-fstream-tp26986763p26986... Sent from the Boost - Dev mailing list archive at Nabble.com.