comparison armadillo-3.900.4/include/armadillo_bits/operator_times.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) 2008-2012 NICTA (www.nicta.com.au)
+// Copyright (C) 2008-2012 Conrad Sanderson
+// Copyright (C) 2012 Ryan Curtin
+// 
+// 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 operator_times
+//! @{
+
+
+
+//! Base * scalar
+template<typename T1>
+arma_inline
+typename enable_if2< is_arma_type<T1>::value, const eOp<T1, eop_scalar_times> >::result
+operator*
+(const T1& X, const typename T1::elem_type k)
+  {
+  arma_extra_debug_sigprint();
+  
+  return eOp<T1, eop_scalar_times>(X,k);
+  }
+
+
+
+//! scalar * Base
+template<typename T1>
+arma_inline
+typename enable_if2< is_arma_type<T1>::value, const eOp<T1, eop_scalar_times> >::result
+operator*
+(const typename T1::elem_type k, const T1& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  return eOp<T1, eop_scalar_times>(X,k);  // NOTE: order is swapped
+  }
+
+
+
+//! non-complex Base * complex scalar
+template<typename T1>
+arma_inline
+typename
+enable_if2
+  <
+  (is_arma_type<T1>::value && is_complex<typename T1::elem_type>::value == false),
+  const mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_times>
+  >::result
+operator*
+  (
+  const T1&                                  X,
+  const std::complex<typename T1::pod_type>& k
+  )
+  {
+  arma_extra_debug_sigprint();
+  
+  return mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_times>('j', X, k);
+  }
+
+
+
+//! complex scalar * non-complex Base
+template<typename T1>
+arma_inline
+typename
+enable_if2
+  <
+  (is_arma_type<T1>::value && is_complex<typename T1::elem_type>::value == false),
+  const mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_times>
+  >::result
+operator*
+  (
+  const std::complex<typename T1::pod_type>& k,
+  const T1&                                  X
+  )
+  {
+  arma_extra_debug_sigprint();
+  
+  return mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_times>('j', X, k);
+  }
+
+
+
+//! scalar * trans(T1)
+template<typename T1>
+arma_inline
+const Op<T1, op_htrans2>
+operator*
+(const typename T1::elem_type k, const Op<T1, op_htrans>& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  return Op<T1, op_htrans2>(X.m, k);
+  }
+
+
+
+//! trans(T1) * scalar
+template<typename T1>
+arma_inline
+const Op<T1, op_htrans2>
+operator*
+(const Op<T1, op_htrans>& X, const typename T1::elem_type k)
+  {
+  arma_extra_debug_sigprint();
+  
+  return Op<T1, op_htrans2>(X.m, k);
+  }
+
+
+
+//! Base * diagmat
+template<typename T1, typename T2>
+arma_inline
+typename
+enable_if2
+  <
+  (is_arma_type<T1>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value),
+  const Glue<T1, Op<T2, op_diagmat>, glue_times_diag>
+  >::result
+operator*
+(const T1& X, const Op<T2, op_diagmat>& Y)
+  {
+  arma_extra_debug_sigprint();
+  
+  return Glue<T1, Op<T2, op_diagmat>, glue_times_diag>(X, Y);
+  }
+
+
+
+//! diagmat * Base
+template<typename T1, typename T2>
+arma_inline
+typename
+enable_if2
+  <
+  (is_arma_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value),
+  const Glue<Op<T1, op_diagmat>, T2, glue_times_diag>
+  >::result
+operator*
+(const Op<T1, op_diagmat>& X, const T2& Y)
+  {
+  arma_extra_debug_sigprint();
+  
+  return Glue<Op<T1, op_diagmat>, T2, glue_times_diag>(X, Y);
+  }
+
+
+
+//! diagmat * diagmat
+template<typename T1, typename T2>
+inline
+Mat< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result >
+operator*
+(const Op<T1, op_diagmat>& X, const Op<T2, op_diagmat>& Y)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::elem_type eT1;
+  typedef typename T2::elem_type eT2;
+  
+  typedef typename promote_type<eT1,eT2>::result out_eT;
+  
+  promote_type<eT1,eT2>::check();
+  
+  const diagmat_proxy<T1> A(X.m);
+  const diagmat_proxy<T2> B(Y.m);
+  
+  arma_debug_assert_mul_size(A.n_elem, A.n_elem, B.n_elem, B.n_elem, "matrix multiplication");
+  
+  const uword N = A.n_elem;
+  
+  Mat<out_eT> out(N,N);
+  
+  out.zeros();
+  
+  for(uword i=0; i<N; ++i)
+    {
+    out.at(i,i) = upgrade_val<eT1,eT2>::apply( A[i] ) * upgrade_val<eT1,eT2>::apply( B[i] );
+    }
+  
+  return out;
+  }
+
+
+
+//! multiplication of Base objects with same element type
+template<typename T1, typename T2>
+arma_inline
+typename
+enable_if2
+  <
+  is_arma_type<T1>::value && is_arma_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value,
+  const Glue<T1, T2, glue_times>
+  >::result
+operator*
+(const T1& X, const T2& Y)
+  {
+  arma_extra_debug_sigprint();
+  
+  return Glue<T1, T2, glue_times>(X, Y);
+  }
+
+
+
+//! multiplication of Base objects with different element types
+template<typename T1, typename T2>
+inline
+typename
+enable_if2
+  <
+  (is_arma_type<T1>::value && is_arma_type<T2>::value && (is_same_type<typename T1::elem_type, typename T2::elem_type>::value == false)),
+  const mtGlue< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result, T1, T2, glue_mixed_times >
+  >::result
+operator*
+  (
+  const T1& X,
+  const T2& Y
+  )
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::elem_type eT1;
+  typedef typename T2::elem_type eT2;
+  
+  typedef typename promote_type<eT1,eT2>::result out_eT;
+  
+  promote_type<eT1,eT2>::check();
+  
+  return mtGlue<out_eT, T1, T2, glue_mixed_times>( X, Y );
+  }
+
+
+
+//! sparse multiplied by scalar
+template<typename T1>
+inline
+typename
+enable_if2
+  <
+  is_arma_sparse_type<T1>::value,
+  SpOp<T1,spop_scalar_times>
+  >::result
+operator*
+  (
+  const T1& X,
+  const typename T1::elem_type k
+  )
+  {
+  arma_extra_debug_sigprint();
+  
+  return SpOp<T1,spop_scalar_times>(X, k);
+  }
+
+
+
+template<typename T1>
+inline
+typename
+enable_if2
+  <
+  is_arma_sparse_type<T1>::value,
+  SpOp<T1,spop_scalar_times>
+  >::result
+operator*
+  (
+  const typename T1::elem_type k,
+  const T1& X
+  )
+  {
+  arma_extra_debug_sigprint();
+  
+  return SpOp<T1,spop_scalar_times>(X, k);
+  }
+
+
+
+//! multiplication of two sparse objects
+template<typename T1, typename T2>
+inline
+arma_hot
+typename
+enable_if2
+  <
+  (is_arma_sparse_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value),
+  const SpGlue<T1,T2,spglue_times>
+  >::result
+operator*
+  (
+  const T1& x,
+  const T2& y
+  )
+  {
+  arma_extra_debug_sigprint();
+
+  return SpGlue<T1,T2,spglue_times>(x, y);
+  }
+
+
+
+//! convert "(sparse + sparse) * scalar" to specialised operation "scalar * (sparse + sparse)"
+template<typename T1, typename T2>
+inline
+const SpGlue<T1,T2,spglue_plus2>
+operator*
+  (
+  const SpGlue<T1,T2,spglue_plus>& X,
+  const typename T1::elem_type k
+  )
+  {
+  arma_extra_debug_sigprint();
+  
+  return SpGlue<T1,T2,spglue_plus2>(X.A, X.B, k);
+  }
+
+
+
+//! convert "scalar * (sparse + sparse)" to specialised operation 
+template<typename T1, typename T2>
+inline
+const SpGlue<T1,T2,spglue_plus2>
+operator*
+  (
+  const typename T1::elem_type k,
+  const SpGlue<T1,T2,spglue_plus>& X
+  )
+  {
+  arma_extra_debug_sigprint();
+  
+  return SpGlue<T1,T2,spglue_plus2>(X.A, X.B, k);
+  }
+
+
+
+//! convert "(sparse - sparse) * scalar" to specialised operation "scalar * (sparse - sparse)"
+template<typename T1, typename T2>
+inline
+const SpGlue<T1,T2,spglue_minus2>
+operator*
+  (
+  const SpGlue<T1,T2,spglue_minus>& X,
+  const typename T1::elem_type k
+  )
+  {
+  arma_extra_debug_sigprint();
+  
+  return SpGlue<T1,T2,spglue_minus2>(X.A, X.B, k);
+  }
+
+
+
+//! convert "scalar * (sparse - sparse)" to specialised operation 
+template<typename T1, typename T2>
+inline
+const SpGlue<T1,T2,spglue_minus2>
+operator*
+  (
+  const typename T1::elem_type k,
+  const SpGlue<T1,T2,spglue_minus>& X
+  )
+  {
+  arma_extra_debug_sigprint();
+  
+  return SpGlue<T1,T2,spglue_minus2>(X.A, X.B, k);
+  }
+
+
+
+//! convert "(sparse*sparse) * scalar" to specialised operation "scalar * (sparse*sparse)"
+template<typename T1, typename T2>
+inline
+const SpGlue<T1,T2,spglue_times2>
+operator*
+  (
+  const SpGlue<T1,T2,spglue_times>& X,
+  const typename T1::elem_type k
+  )
+  {
+  arma_extra_debug_sigprint();
+  
+  return SpGlue<T1,T2,spglue_times2>(X.A, X.B, k);
+  }
+
+
+
+//! convert "scalar * (sparse*sparse)" to specialised operation
+template<typename T1, typename T2>
+inline
+const SpGlue<T1,T2,spglue_times2>
+operator*
+  (
+  const typename T1::elem_type k,
+  const SpGlue<T1,T2,spglue_times>& X
+  )
+  {
+  arma_extra_debug_sigprint();
+  
+  return SpGlue<T1,T2,spglue_times2>(X.A, X.B, k);
+  }
+
+
+
+//! convert "(scalar*sparse) * sparse" to specialised operation "scalar * (sparse*sparse)"
+template<typename T1, typename T2>
+inline
+typename
+enable_if2
+  <
+  is_arma_sparse_type<T2>::value,
+  const SpGlue<T1,T2,spglue_times2>
+  >::result
+operator*
+  (
+  const SpOp<T1,spop_scalar_times>& X,
+  const T2& Y
+  )
+  {
+  arma_extra_debug_sigprint();
+  
+  return SpGlue<T1,T2,spglue_times2>(X.m, Y, X.aux);
+  }
+
+
+
+//! convert "sparse * (scalar*sparse)" to specialised operation "scalar * (sparse*sparse)"
+template<typename T1, typename T2>
+inline
+typename
+enable_if2
+  <
+  is_arma_sparse_type<T1>::value,
+  const SpGlue<T1,T2,spglue_times2>
+  >::result
+operator*
+  (
+  const T1& X,
+  const SpOp<T2,spop_scalar_times>& Y
+  )
+  {
+  arma_extra_debug_sigprint();
+  
+  return SpGlue<T1,T2,spglue_times2>(X, Y.m, Y.aux);
+  }
+
+
+
+//! multiplication of one sparse and one dense object
+template<typename T1, typename T2>
+inline
+typename
+enable_if2
+  <
+  (is_arma_sparse_type<T1>::value && is_arma_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value),
+  Mat<typename T1::elem_type>
+  >::result
+operator*
+  (
+  const T1& x,
+  const T2& y
+  )
+  {
+  arma_extra_debug_sigprint();
+  
+  const SpProxy<T1> pa(x);
+  const   Proxy<T2> pb(y);
+  
+  arma_debug_assert_mul_size(pa.get_n_rows(), pa.get_n_cols(), pb.get_n_rows(), pb.get_n_cols(), "matrix multiplication");
+  
+  Mat<typename T1::elem_type> result(pa.get_n_rows(), pb.get_n_cols());
+  result.zeros();
+  
+  if( (pa.get_n_nonzero() > 0) && (pb.get_n_elem() > 0) )
+    {
+    typename SpProxy<T1>::const_iterator_type x_it     = pa.begin();
+    typename SpProxy<T1>::const_iterator_type x_it_end = pa.end();
+    
+    const uword result_n_cols = result.n_cols;
+      
+    while(x_it != x_it_end)
+      {
+      for(uword col = 0; col < result_n_cols; ++col)
+        {
+        result.at(x_it.row(), col) += (*x_it) * pb.at(x_it.col(), col);
+        }
+      
+      ++x_it;
+      }
+    }
+  
+  return result;
+  }
+
+
+
+//! multiplication of one dense and one sparse object
+template<typename T1, typename T2>
+inline
+typename
+enable_if2
+  <
+  (is_arma_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value),
+  Mat<typename T1::elem_type>
+  >::result
+operator*
+  (
+  const T1& x,
+  const T2& y
+  )
+  {
+  arma_extra_debug_sigprint();
+  
+  const   Proxy<T1> pa(x);
+  const SpProxy<T2> pb(y);
+  
+  arma_debug_assert_mul_size(pa.get_n_rows(), pa.get_n_cols(), pb.get_n_rows(), pb.get_n_cols(), "matrix multiplication");
+  
+  Mat<typename T1::elem_type> result(pa.get_n_rows(), pb.get_n_cols());
+  result.zeros();
+  
+  if( (pa.get_n_elem() > 0) && (pb.get_n_nonzero() > 0) )
+    {
+    typename SpProxy<T2>::const_iterator_type y_col_it     = pb.begin();
+    typename SpProxy<T2>::const_iterator_type y_col_it_end = pb.end();
+    
+    const uword result_n_rows = result.n_rows;
+    
+    while(y_col_it != y_col_it_end)
+      {
+      for(uword row = 0; row < result_n_rows; ++row)
+        {
+        result.at(row, y_col_it.col()) += pa.at(row, y_col_it.row()) * (*y_col_it);
+        }
+      
+      ++y_col_it;
+      }
+    }
+  
+  return result;
+  }
+
+
+
+//! @}