[RESOLVED] string as stream

[andrey_zh]

Hello!

I'm solving one problem related to parsing of text files. It would be very convenient for me to read ifstream line by line at first, treat every line as string (preferably c++ string), then convert that string to istream and read from the istream.

So:

Is there an easy way to convert std::string into std::istream?

[monarch_dodra]

Hello!

I'm solving one problem related to parsing of text files. It would be very convenient for me to read ifstream line by line at first, treat every line as string (preferably c++ string), then convert that string to istream and read from the istream.

So:

Is there an easy way to convert std::string into std::istream?

Yes, an istringstream is a istream, so you can transform your string into an istringstream and get the same result. Said conversion is actually very easy:

std::istringstream iss(myString)

Simple as that. Don't forget to include <sstream>. It is OK and easier to construct and destroy the iss on every iteration. You can choose to use a single iss that you recycle on every iteration, but it makes error handling and cleanup harder.

[andrey_zh]

It works great! Thanks! Thread resolved!