longinteger module: (C) 1999 Jochen Suckfuell, 2001 Sebastian Ritterbusch

This module includes integers of arbitrary length into Rascal. The new data
type replaces the integer data type whenever possible. With this data type
you may compute the factorial of 1000 or the result of 2^278.

The function 'longrandom(n)' returns a pseudo random number with about 7n to
8n digits.