comparison armadillo-3.900.4/include/armadillo_bits/fn_spones.hpp @ 49:1ec0e2823891

Switch to using subrepo copies of qm-dsp, nnls-chroma, vamp-plugin-sdk; update Armadillo version; assume build without external BLAS/LAPACK

+// Copyright (C) 2012 Conrad Sanderson
+// 
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+
+//! \addtogroup fn_spones
+//! @{
+
+
+
+//! Generate a sparse matrix with the non-zero values in the same locations as in the given sparse matrix X,
+//! with the non-zero values set to one
+template<typename T1>
+inline
+SpMat<typename T1::elem_type>
+spones(const SpBase<typename T1::elem_type, T1>& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::elem_type eT;
+  
+  SpMat<eT> out( X.get_ref() );
+  
+  const uword nnz = out.n_nonzero;
+  
+  eT* values = access::rwp(out.values);
+  
+  for(uword i=0; i < nnz; ++i)
+    {
+    values[i] = eT(1);
+    }
+  
+  return out;
+  }
+
+
+
+//! @}