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-rw-r--r--unsupported/doc/examples/BVH_Example.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/unsupported/doc/examples/BVH_Example.cpp b/unsupported/doc/examples/BVH_Example.cpp
index 0fbab5fdb..d135fd990 100644
--- a/unsupported/doc/examples/BVH_Example.cpp
+++ b/unsupported/doc/examples/BVH_Example.cpp
@@ -1,5 +1,6 @@
#include <Eigen/StdVector>
#include <unsupported/Eigen/BVH>
+#include <iostream>
using namespace Eigen;
typedef AlignedBox<double, 2> Box2d;