— Program and string variable
— But isn't the string variable a part of the program?
— So? Not everything in program goes in cout
— Cout will copy the content of a variable into the stream and then the stream will feed it to the stdout
Can you describe stringstream in those terms for me?
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— Base nbj = obj;
This is not copy assignment?
— Sstream copies variables to internal string and returns a copy of it when one calls str()
— It is copy construction, not assignment
— And the return of str() is string?
— Https://en.cppreference.com/w/cpp/io/basic_stringstream/str