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-rw-r--r--Eigen/src/misc/SparseSolve.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/Eigen/src/misc/SparseSolve.h b/Eigen/src/misc/SparseSolve.h
index 7a8d98009..aca34b2d1 100644
--- a/Eigen/src/misc/SparseSolve.h
+++ b/Eigen/src/misc/SparseSolve.h
@@ -25,6 +25,8 @@
#ifndef EIGEN_SPARSE_SOLVE_H
#define EIGEN_SPARSE_SOLVE_H
+namespace Eigen {
+
namespace internal {
template<typename _DecompositionType, typename Rhs> struct sparse_solve_retval_base;
@@ -119,4 +121,6 @@ template<typename DecompositionType, typename Rhs, typename Guess> struct solve_
} // namepsace internal
+} // end namespace Eigen
+
#endif // EIGEN_SPARSE_SOLVE_H