diff armadillo-3.900.4/include/armadillo_bits/fn_lu.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

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/armadillo-3.900.4/include/armadillo_bits/fn_lu.hpp	Thu Jun 13 10:25:24 2013 +0100
@@ -0,0 +1,78 @@
+// Copyright (C) 2008-2011 NICTA (www.nicta.com.au)
+// Copyright (C) 2008-2011 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_lu
+//! @{
+
+
+
+//! immediate lower upper decomposition, permutation info is embedded into L (similar to Matlab/Octave)
+template<typename T1>
+inline
+bool
+lu
+  (
+         Mat<typename T1::elem_type>&    L,
+         Mat<typename T1::elem_type>&    U,
+  const Base<typename T1::elem_type,T1>& X,
+  const typename arma_blas_type_only<typename T1::elem_type>::result* junk = 0
+  )
+  {
+  arma_extra_debug_sigprint();
+  arma_ignore(junk);
+  
+  arma_debug_check( (&L == &U), "lu(): L and U are the same object");
+  
+  const bool status = auxlib::lu(L, U, X);
+  
+  if(status == false)
+    {
+    L.reset();
+    U.reset();
+    arma_bad("lu(): failed to converge", false);
+    }
+  
+  return status;
+  }
+
+
+
+//! immediate lower upper decomposition, also providing the permutation matrix
+template<typename T1>
+inline
+bool
+lu
+  (
+         Mat<typename T1::elem_type>&    L,
+         Mat<typename T1::elem_type>&    U, 
+         Mat<typename T1::elem_type>&    P,
+  const Base<typename T1::elem_type,T1>& X,
+  const typename arma_blas_type_only<typename T1::elem_type>::result* junk = 0
+  )
+  {
+  arma_extra_debug_sigprint();
+  arma_ignore(junk);
+  
+  arma_debug_check( ( (&L == &U) || (&L == &P) || (&U == &P) ), "lu(): two or more output objects are the same object");
+  
+  const bool status = auxlib::lu(L, U, P, X);
+  
+  if(status == false)
+    {
+    L.reset();
+    U.reset();
+    P.reset();
+    arma_bad("lu(): failed to converge", false);
+    }
+  
+  return status;
+  }
+
+
+
+//! @}