forwarddiff fixes

FluxML · Mar 29, 2019 · 7d930ab · 7d930ab
1 parent ac49b15
commit 7d930ab
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/src/lib/real.jl b/src/lib/real.jl
@@ -38,3 +38,10 @@ end
 @adjoint a // b = (a // b, c̄ -> (c̄ * 1//b, - c̄ * a // b // b))
 
 @nograd floor, ceil, trunc, round, hash
+
+# Hack for conversions
+
+using ForwardDiff: Dual
+
+(T::Type{<:Real})(x::Dual) = Dual(T(x.value), map(T, x.partials.values))
+(Dual{T,V,N})(x::Dual) where {T,V,N} = invoke(Dual{T,V,N}, Tuple{Number}, x)