Thread: Making a copy of an istream.

Hi out there!

I have a problem with an istream object. My code is as follows:

Code:

//Constructor of Class scanner.
scanner(istream &istr): is(istr) {}

As you can see, this constructor should take an istream object as input, and copy it to a private variable called is, which also is an istream.

This, though, does make compiling error, both with BorlandC++, and with DJGPP´s gpp.

I have taken this from a source, which previously compiled under Unix(Solaris), with g++.

Can anyone suggest a way to get this working(compiling)?

Regards

I see nothing intrisically wrong with this, except possibly the lack of std:: qualification (you need to add std:: to every istream or using std::istream; somewhere)

Note that having two copies of an istream object that refer to the same file can be somewhat tricky, they share a great deal of state. This, however, is not your compiler error.

Just got it working!

I needed to write like this:

Code:

private:
istream& is;

Intead of:

Code:

private:
istream is;

Didn´t know this little detail...