/* -------------------------------------------------------------------------- */
  /* UMFPACK Copyright (c) Timothy A. Davis, CISE,                              */
  /* Univ. of Florida.  All Rights Reserved.  See ../Doc/License for License.   */
  /* web: http://www.cise.ufl.edu/research/sparse/umfpack                       */
  /* -------------------------------------------------------------------------- */
  
  GLOBAL Int UMF_singletons
  (
      Int n_row,
      Int n_col,
      const Int Ap [ ],
      const Int Ai [ ],
      const Int Quser [ ],
      Int strategy,
      Int Cdeg [ ],
      Int Cperm [ ],
      Int Rdeg [ ],
      Int Rperm [ ],
      Int InvRperm [ ],
      Int *n1,
      Int *n1c,
      Int *n1r,
      Int *nempty_col,
      Int *nempty_row,
      Int *is_sym,
      Int *max_rdeg,
      Int Rp [ ],
      Int Ri [ ],
      Int W [ ],
      Int Next [ ]
  ) ;