Question

If I have my command line such as:

foo arg1 arg2 << HEREDOC
  line1
  line2
HEREDOC

In foo, how can i get value from heredoc?

int main( char *argv[] )
{
  string arg1=argv[1];
  string arg2=argv[2];

  string heredoc= ?
}

Answer 1

The heredoc just redirects stuff into stdin. So you can use:

string str;
while (getline(cin, str))
    cout << str << endl;