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-rw-r--r--unsupported/Eigen/src/NonLinearOptimization/fdjac1.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/unsupported/Eigen/src/NonLinearOptimization/fdjac1.h b/unsupported/Eigen/src/NonLinearOptimization/fdjac1.h
index 0a26c2061..1cabe69ae 100644
--- a/unsupported/Eigen/src/NonLinearOptimization/fdjac1.h
+++ b/unsupported/Eigen/src/NonLinearOptimization/fdjac1.h
@@ -1,3 +1,5 @@
+namespace Eigen {
+
namespace internal {
template<typename FunctorType, typename Scalar>
@@ -70,3 +72,5 @@ DenseIndex fdjac1(
}
} // end namespace internal
+
+} // end namespace Eigen