commit 056140e3a005a88300c2e8bec19013111f84ec34
author Sameer Agarwal <sameeragarwal@google.com> Fri Apr 20 14:05:14 2018 -0700
committer Sameer Agarwal <sameeragarwal@google.com> Fri Apr 20 14:05:14 2018 -0700
tree 59cd8d4da7a0bde8e3153a7869627a8bc55e912b
parent 865952821fc2af7afd35bc1dbb3ca2f2806ea620

Add a typedef to expose the scalar type used in a Jet.

Change-Id: I4232d76619f4f9c48a0c716150b8c5ffc8b74462

include/ceres/jet.h

diff --git a/include/ceres/jet.h b/include/ceres/jet.h
index 0d5c780..7eb199a 100644
--- a/include/ceres/jet.h
+++ b/include/ceres/jet.h
@@ -170,6 +170,7 @@
 template <typename T, int N>
 struct Jet {
   enum { DIMENSION = N };
+  typedef T Scalar;
 
   // Default-construct "a" because otherwise this can lead to false errors about
   // uninitialized uses when other classes relying on default constructed T