fd_write.cpp

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#include <xstream/fd.h>

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <errno.h>

#include <iostream>

using namespace std;
using namespace xstream;


int main(int argc, char* argv[]){

   try{
      int fd;
      if(2==argc){
         fd = open(argv[1], O_WRONLY|O_CREAT);
         if(-1==fd){
            perror("open");
            return errno;
         }else{
            fd::streambuf fs(fd,true);
            ostream os(&fs);
            os.exceptions(ios::badbit);

            os<<cin.rdbuf();
         }
      }else{
         cerr<<argv[0]<<" file"<<endl;
      }
   }
   catch(exception& e){
      cerr<<"Error: "<<e.what()<<endl;
   }

   return 0;
}