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C++ stringstream error handling

Once a stream moved into fail state, it will stay in fail state until gets clear()ed. That is, you need to do something like this:

if ( {
    std::cout << "This is not an integer
    // ...

Also not that just writing to a string stream does not replace the string stream's content! to replace the content of a string stream you can use the str() method:


Alternatively you can create a new string stream in each iteration but this is relatively expensive if there are many streams being created.

Categories : C++

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