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val one = valOf (Real.fromString "1.0")
val zero = valOf (Real.fromString "0.0")
val posInf = one / zero
val negInf = ~one / zero
val nan1 = posInf + negInf
fun cmp f = print ((Bool.toString (f (nan1, nan1))) ^ "\n")
local
open Real
in
val _ = cmp (op <)
val _ = cmp (op <=)
val _ = cmp (op >)
val _ = cmp (op >=)
val _ = cmp (op ==)
val _ = cmp (op !=)
val _ = cmp (op ?=)
end
val nan2 = valOf (Real.fromString "nan")
fun cmp f = print ((Bool.toString (f (nan1, nan2))) ^ "\n")
local
open Real
in
val _ = cmp (op <)
val _ = cmp (op <=)
val _ = cmp (op >)
val _ = cmp (op >=)
val _ = cmp (op ==)
val _ = cmp (op !=)
val _ = cmp (op ?=)
end
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