From 006fc2e91fc83bcd91362d52d52eea645e60eba2 Mon Sep 17 00:00:00 2001
From: SimonDanisch <sdanisch@gmail.com>
Date: Mon, 3 Apr 2017 14:40:17 +0200
Subject: [PATCH] add similar for tracked array

---
 src/tracked.jl | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/tracked.jl b/src/tracked.jl
index d011910..5baf042 100644
--- a/src/tracked.jl
+++ b/src/tracked.jl
@@ -82,6 +82,9 @@ function TrackedArray{V,D,N}(value::AbstractArray{V,N},
     return TrackedArray{V,D,N,typeof(value),typeof(deriv)}(value, deriv, tape)
 end
 
+function Base.similar{T, N}(a::TrackedArray, ::Type{T}, dims::Base.Dims{N})
+    similar(value(a), T, dims)
+end
 ###########
 # getters #
 ###########