2 ishash - whether a value is a hash state
13 The value returned by ishash(x) is:
15 0 if x is not a hash state,
16 1 if x is a sha hash state,
17 2 if x is a sha1 hash state,
18 3 if x is a md5 hash state.
21 > a = shs(0), b = shs1(0), c = md5(0)
22 > print ishash(0), ishash(a), ishash(b), ishash(c);
33 isassoc, isatty, isblk, isconfig, isdefined, iserror, iseven, isfile,
34 isident, isint, islist, ismat, ismult, isnull, isnum, isobj,
35 isobjtype, isodd, isprime, isrand, israndom, isreal, isrel,
36 issimple, issq, isstr, istype