Question

I am getting the following output from the following block of code:

    //create file for writing
cout << "'" << filename.c_str() << "'" << endl;
    string outfile = filename.append(".bin");
cout << "'" << outfile.c_str() << "'" << endl;
    fstream *binfile;
    binfile->open (outfile.c_str(), ios::out | ios::binary);

prints:

'myfile.tmp'
'myfile.tmp.bin'
terminate called after throwing an instance of 'std::ios_base::failure'
  what():  basic_ios::clear

What does that error mean, and how can I fix it?

Thanks

Answer 1

Instead of this:

fstream *binfile;

You should do this:

fstream binfile("filename", fstream::in | fstream::out | fstream::binary);

and then call:

 binfile << "write here to file";

binfile.close();

There is no need for a pointer here.