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I'm not aware of any one command to return the stream to the default state there are several ways of resetting various settings, for example setf() and unsetf() control the left, right or internal...

Actually since the default setfil() is " " you don't even need the setfill(), the same with the right, it too is the default so it isn't actually needed. The std::fixed and perhaps a setprecision(),...

Also please note that the std::setfill() and std::left are sticky. Which means that they stay in the new state until they are changed. This is unlike setw() which must be used for each output.

The...