NAME
    isrand - whether a value is an additive 55 state

SYNOPSIS
    isrand(x)

TYPES
    x		any, &any

    return	int

DESCRIPTION
    Determine if x is an additive 55 pseudo-random number generator state.
    This function will return 1 if x is a file, 0 otherwise.

EXAMPLE
    > a = srand(0)
    > print isrand(a), isrand(0);
    1 0

LIMITS
    none

LIBRARY
    none

SEE ALSO
    seed, rand, srand, randbit,
    isassoc, isatty, isblk, isconfig, isdefined, iserror, iseven, isfile,
    ishash, isident, isint, islist, ismat, ismult, isnull, isnum, isobj,
    isobjtype, isodd, isprime, israndom, isreal, isrel,
    issimple, issq, isstr, istype