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32.32. Math::BigInt
use Math::BigInt;
$i = Math::BigInt->new($string);
use Math::BigInt ':constant';
print 2**200;
This prints:
+1606938044258990275541962092341162602522202993782792835301376
The Math::BigInt module provides objects that represent integers with
arbitrary precision and overloaded arithmetical operators.
Create these objects using the new constructor, or, within a
lexical scope, by importing the special value ":constant", after
which all numeric literals through the end of that lexical scope
are treated as Math::BigInt objects. All standard integer
operators are implemented, including (as of the 5.6 release
of Perl) the bitwise logical operators. Under the current
implementation, this module is not what you'd call blazingly fast,
but this may be addressed in the future. (We'd like to see you
how fast you are at calculating 2**200 in your head.)