I think you are confusing the meaning of copying filehandles with that of copying the contents from one file to another.

I am guessing that it is the latter that you really want. I assume that myfunction returns either an open read handle or undef. In this case, you can do something like 

my $in = myfunction();
if ( $in ) {
  print FILEHANDLE while <$in>;
}
else {
  # handle null-handle error;
}

[download]

the lowliest monk

In reply to Re^3: return undef by tlm
in thread return undef by dwijew

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