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-rw-r--r--Eigen/src/Core/PermutationMatrix.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/Eigen/src/Core/PermutationMatrix.h b/Eigen/src/Core/PermutationMatrix.h
index 483b483a7..e0d618dfb 100644
--- a/Eigen/src/Core/PermutationMatrix.h
+++ b/Eigen/src/Core/PermutationMatrix.h
@@ -26,6 +26,8 @@
#ifndef EIGEN_PERMUTATIONMATRIX_H
#define EIGEN_PERMUTATIONMATRIX_H
+namespace Eigen {
+
template<int RowCol,typename IndicesType,typename MatrixType, typename StorageKind> class PermutedImpl;
/** \class PermutationBase
@@ -695,4 +697,6 @@ const PermutationWrapper<const Derived> MatrixBase<Derived>::asPermutation() con
return derived();
}
+} // end namespace Eigen
+
#endif // EIGEN_PERMUTATIONMATRIX_H