getline - Read a newline terminated string from an input stream.
istreamhandle getline -> istreamhandle string true
-> istreamhandle false
getline reads a line from the supplied stream.
If the read process was successful, a result string and
the boolean true are returned.
If an error occured while reading from the stream, only the
stream and boolean false is returned.
No errors are raised. If getline is applied to an
invalid stream, the return value is false. The return value
false indicates that the state of the stream is no longer
"good".
commented 26.3.1999, Diesmann
Diesmann & Gewaltig
/var/www/debian/nest/nest-simulator-2.20.0/sli/sli_io.cc