saving entire input into 1 string?

If i wanted to save entire input till EOF into 1 string, any idea how I would do this?

(besides getline and concating strings every time, thats the only solution I can think of)

Thanks

Given a std::istream named in, one way is:

Code:

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std::stringstream ss;
ss << in.rdbuf();
std::string str = ss.str();

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But I recall from an old thread that a more efficient method works along the lines of what you have described. Perhaps you can search and find out what exactly was the most efficient method we considered.

Quote:

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Originally Posted by rodrigorules

If i wanted to save entire input till EOF into 1 string, any idea how I would do this?

(besides getline and concating strings every time, thats the only solution I can think of)

Thanks

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Personally, I would seek to the end of the file (istream::seekg) to obtain the length of the data (istream::tellg), resize the buffer, then read the entire block at once (istream::read).

Try to keep things simple. If getline works fine in your situation, leave the alternate. Making things complex for yourself will reap no benefits. Curiosity however is fine and a good thing.