Agreed. However, here is the first part of new: 
sub new 
  {
  # create a new BigInt object from a string or another BigInt object.
+ 
  # see hash keys documented at top

  # the argument could be an object, so avoid ||, && etc on it, this w
+ould
  # cause costly overloaded code to be called. The only allowed ops ar
+e
  # ref() and defined.

  my ($class,$wanted,$a,$p,$r) = @_;
 
  # avoid numify-calls by not using || on $wanted!
  return $class->bzero($a,$p) if !defined $wanted;    # default to 0
  return $class->copy($wanted,$a,$p,$r)
   if ref($wanted) && $wanted->isa($class);        # MBI or subclass

  $class->import() if $IMPORT == 0;        # make require work
  
  my $self = bless {}, $class;

[download]
If it gets to the last line, and $class == 27, then $class must have been changed somewhere?

And generally speaking, if I want a new object from an existing object, shouldn't the existing object be able to create one for me? Or do I have to go around doing this? 

my $y = {ref $x}->new();

[download]

(or whatever the syntax is for that)

-QM
--
Quantum Mechanics: The dreams stuff is made of

In reply to Re^2: Math::BigInt new by QM
in thread Math::BigInt new by QM

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