From e5dceb3ab0c32e3682c0effb2d856c78f52bf8a9 Mon Sep 17 00:00:00 2001
From: Julien Pilet <julien.pilet@gmail.com>
Date: Tue, 28 Feb 2017 10:34:26 +0100
Subject: [PATCH] Fix Jet/Eigen compatibility for Eigen > 3.3

Honour the digits10 NumTraits member introduced in Eigen 3.3.

Change-Id: If20183332beef8335b7758cdb58859a43fc59970
---
 include/ceres/jet.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/ceres/jet.h b/include/ceres/jet.h
index 93cdd7238..27c39d332 100644
--- a/include/ceres/jet.h
+++ b/include/ceres/jet.h
@@ -850,6 +850,8 @@ struct NumTraits<ceres::Jet<T, N> > {
     return Real(std::numeric_limits<T>::epsilon());
   }
 
+  static inline int digits10() { return NumTraits<T>::digits10(); }
+
   enum {
     IsComplex = 0,
     IsInteger = 0,