[CSI] File IO Question

Mikhail Nesterenko mikhail at cs.kent.edu
Wed May 4 12:40:13 EDT 2022


Joshua Romisher wrote:
> Dr. Nesterenko,
> 
> For File IO, when reading in a loop, what is the 'myvar' parameter listed
> in the example on slide 3 for File IO while (fin >>myvar) and
> while(getline(fin,myvar)).
> 

the semantics is that getline()/extraction operator is true if the
reading was successful, i.e. the end of the file is not reached. That
is, this while-loop keeps reading into myvar until the end of the file
is reached.

Example usage is here:

     http://www.cs.kent.edu/~mikhail/classes/csi/Examples/Io/printFileExtr.cpp

and here:

    http://www.cs.kent.edu/~mikhail/classes/csi/Examples/Io/printfile.cpp


Thanks,
--
Mikhail


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