This is a question regarding general knowledge of the perl language.
If i undef an object and the object has a destroy function, when is this function called ?
If i have a code
# Create a new Excel workbook
my $workbook = Spreadsheet::WriteExcel->new('perl.xls');
# Add a worksheet
my $worksheet = $workbook->add_worksheet();
# Write a formatted and unformatted string, row and column notation.
$col = $row = 0;
$worksheet->write($row, $col, 'Hi Excel!', $format);
copy("perl.xls","perl2.xls") or die "Copy failed: $!";
The excel workbook object has a destructor which calls the close function.
Can i assume that the close function of the workbook is called before the copy call, or do i have to close the workbook explicitely?
In c++ the destructor is called right when the object goes out of scope.
In java the destructor is called when the garbage collector wants and i can not rely on it.
What happens in perl ?