ostringstream

What’s the difference between istringstream, ostringstream and stringstream? / Why not use stringstream in every case?

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Personally, I find it very rare that I want to perform streaming into and out of the same string stream. Usually I want to either initialize a stream from a string and then parse it; or stream things to a string stream and then extract the result and store it. If you’re streaming to and … Read more

How to reuse an ostringstream?

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I’ve used a sequence of clear and str in the past: // clear, because eof or other bits may be still set. s.clear(); s.str(“”); Which has done the thing for both input and output stringstreams. Alternatively, you can manually clear, then seek the appropriate sequence to the begin: s.clear(); s.seekp(0); // for outputs: seek put … Read more