2 issimple - whether a value is a simple type
13 Determine if x is a simple type. This function will return 1 if x
14 is a simple type, 0 otherwise. Simple types are real numbers,
15 complex numbers, strings and null values.
18 > print issimple(2.0), issimple(1), issimple("0")
21 > print issimple(2i), issimple(1e20), issimple(1/3), issimple(null())
27 > obj chongo {was, here} d;
28 > print issimple(a), issimple(b), issimple(c), issimple(d)
38 isassoc, isatty, isblk, isconfig, isdefined, iserror, iseven, isfile,
39 ishash, isident, isint, islist, ismat, ismult, isnull, isnum, isobj,
40 isobjtype, isodd, isprime, isrand, israndom, isreal, isrel,