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+// Copyright (C) 2005, 2009 International Business Machines and others.
+// All Rights Reserved.
+// This code is published under the Eclipse Public License.
+//
+// $Id: IpLapack.hpp 2449 2013-12-16 00:25:42Z ghackebeil $
+//
+// Authors:  Andreas Waechter              IBM    2005-12-25
+
+#ifndef __IPLAPACK_HPP__
+#define __IPLAPACK_HPP__
+
+#include "IpUtils.hpp"
+#include "IpException.hpp"
+
+namespace Ipopt
+{
+  DECLARE_STD_EXCEPTION(LAPACK_NOT_INCLUDED);
+
+  /** Wrapper for LAPACK subroutine DPOTRS.  Solving a linear system
+   *  given a Cholesky factorization.  We assume that the Cholesky
+   *  factor is lower traiangular. */
+  void IpLapackDpotrs(Index ndim, Index nrhs, const Number *a, Index lda,
+                      Number *b, Index ldb);
+
+  /** Wrapper for LAPACK subroutine DPOTRF.  Compute Cholesky
+   *  factorization (lower triangular factor).  info is the return
+   *  value from the LAPACK routine. */
+  void IpLapackDpotrf(Index ndim, Number *a, Index lda, Index& info);
+
+  /** Wrapper for LAPACK subroutine DSYEV.  Compute the Eigenvalue
+   *  decomposition for a given matrix.  If compute_eigenvectors is
+   *  true, a will contain the eigenvectors in its columns on
+   *  return.  */
+  void IpLapackDsyev(bool compute_eigenvectors, Index ndim, Number *a,
+                     Index lda, Number *w, Index& info);
+
+  /** Wrapper for LAPACK subroutine DGETRF.  Compute LU factorization.
+   *  info is the return value from the LAPACK routine. */
+  void IpLapackDgetrf(Index ndim, Number *a, Index* pivot, Index lda,
+                      Index& info);
+
+  /** Wrapper for LAPACK subroutine DGETRS.  Solving a linear system
+   *  given a LU factorization. */
+  void IpLapackDgetrs(Index ndim, Index nrhs, const Number *a, Index lda,
+                      Index* ipiv, Number *b, Index ldb);
+
+  /** Wrapper for LAPACK subroutine DPPSV.  Solves a symmetric positive
+   *  definite linear system in packed storage format (upper triangular).
+   *  info is the return value from the LAPACK routine. */
+  void IpLapackDppsv(Index ndim, Index nrhs, const Number *a,
+                     Number *b, Index ldb, Index& info);
+
+} // namespace Ipopt
+
+#endif