Merge pull request #247 from araujoms/iseven

add back iseven for julia 1.6

Author: JeffreySarnoff

src/type/predicates.jl

@@ -133,3 +133,8 @@ iseven(x::DoubleFloat{T}) where {T<:IEEEFloat} =
     else
        false
     end
+
+if VERSION < v"1.7"
+    iseven(x::AbstractFloat) = isinteger(x) && (abs(x) > maxintfloat(x) || iseven(Integer(x)))
+    isodd(x::AbstractFloat) = isinteger(x) && abs(x) ≤ maxintfloat(x) && isodd(Integer(x))
+end