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-rw-r--r--unsupported/Eigen/src/NonLinearOptimization/covar.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/unsupported/Eigen/src/NonLinearOptimization/covar.h b/unsupported/Eigen/src/NonLinearOptimization/covar.h
index 6c77916f5..c73a09645 100644
--- a/unsupported/Eigen/src/NonLinearOptimization/covar.h
+++ b/unsupported/Eigen/src/NonLinearOptimization/covar.h
@@ -1,3 +1,5 @@
+namespace Eigen {
+
namespace internal {
template <typename Scalar>
@@ -63,3 +65,5 @@ void covar(
}
} // end namespace internal
+
+} // end namespace Eigen