comparison armadillo-2.4.4/include/armadillo_bits/GenCube_meat.hpp @ 0:8b6102e2a9b0

Armadillo Library

+// Copyright (C) 2011 NICTA (www.nicta.com.au)
+// Copyright (C) 2011 Conrad Sanderson
+// 
+// This file is part of the Armadillo C++ library.
+// It is provided without any warranty of fitness
+// for any purpose. You can redistribute this file
+// and/or modify it under the terms of the GNU
+// Lesser General Public License (LGPL) as published
+// by the Free Software Foundation, either version 3
+// of the License or (at your option) any later version.
+// (see http://www.opensource.org/licenses for more info)
+
+
+//! \addtogroup Gen
+//! @{
+
+
+
+template<typename eT, typename gen_type>
+arma_inline
+GenCube<eT, gen_type>::GenCube(const uword in_n_rows, const uword in_n_cols, const uword in_n_slices)
+  : n_rows  (in_n_rows  )
+  , n_cols  (in_n_cols  )
+  , n_slices(in_n_slices)
+  {
+  arma_extra_debug_sigprint();
+  }
+
+
+
+template<typename eT, typename gen_type>
+arma_inline
+GenCube<eT, gen_type>::~GenCube()
+  {
+  arma_extra_debug_sigprint();
+  }
+
+
+
+template<typename eT, typename gen_type>
+arma_inline
+eT
+GenCube<eT, gen_type>::generate()
+  {
+       if(is_same_type<gen_type, gen_ones_full>::value == true) { return eT(1);                   }
+  else if(is_same_type<gen_type, gen_zeros    >::value == true) { return eT(0);                   }
+  else if(is_same_type<gen_type, gen_randu    >::value == true) { return eT(eop_aux_randu<eT>()); }
+  else if(is_same_type<gen_type, gen_randn    >::value == true) { return eT(eop_aux_randn<eT>()); }
+  else                                                          { return eT();                    }
+  }
+
+
+
+template<typename eT, typename gen_type>
+arma_inline
+eT
+GenCube<eT, gen_type>::operator[](const uword) const
+  {
+  return GenCube<eT, gen_type>::generate();
+  }
+
+
+
+template<typename eT, typename gen_type>
+arma_inline
+eT
+GenCube<eT, gen_type>::at(const uword, const uword, const uword) const
+  {
+  return GenCube<eT, gen_type>::generate();
+  }
+
+
+
+template<typename eT, typename gen_type>
+inline
+void
+GenCube<eT, gen_type>::apply(Cube<eT>& out) const
+  {
+  arma_extra_debug_sigprint();
+  
+  // NOTE: we're assuming that the cube has already been set to the correct size;
+  // this is done by either the Cube contructor or operator=()
+  
+       if(is_same_type<gen_type, gen_ones_full>::value == true) { out.ones();  }
+  else if(is_same_type<gen_type, gen_zeros    >::value == true) { out.zeros(); }
+  else if(is_same_type<gen_type, gen_randu    >::value == true) { out.randu(); }
+  else if(is_same_type<gen_type, gen_randn    >::value == true) { out.randn(); }
+  }
+
+
+
+template<typename eT, typename gen_type>
+inline
+void
+GenCube<eT, gen_type>::apply_inplace_plus(Cube<eT>& out) const
+  {
+  arma_extra_debug_sigprint();
+  
+  arma_debug_assert_same_size(out.n_rows, out.n_cols, out.n_slices, n_rows, n_cols, n_slices, "addition");
+  
+  
+        eT*   out_mem = out.memptr();
+  const uword n_elem  = out.n_elem;
+  
+  uword i,j;
+  
+  for(i=0, j=1; j<n_elem; i+=2, j+=2)
+    {
+    const eT tmp_i = GenCube<eT, gen_type>::generate();
+    const eT tmp_j = GenCube<eT, gen_type>::generate();
+    
+    out_mem[i] += tmp_i;
+    out_mem[j] += tmp_j;
+    }
+  
+  if(i < n_elem)
+    {
+    out_mem[i] += GenCube<eT, gen_type>::generate();
+    }
+  }
+
+
+
+
+template<typename eT, typename gen_type>
+inline
+void
+GenCube<eT, gen_type>::apply_inplace_minus(Cube<eT>& out) const
+  {
+  arma_extra_debug_sigprint();
+  
+  arma_debug_assert_same_size(out.n_rows, out.n_cols, out.n_slices, n_rows, n_cols, n_slices, "subtraction");
+  
+  
+        eT*   out_mem = out.memptr();
+  const uword n_elem  = out.n_elem;
+  
+  uword i,j;
+  
+  for(i=0, j=1; j<n_elem; i+=2, j+=2)
+    {
+    const eT tmp_i = GenCube<eT, gen_type>::generate();
+    const eT tmp_j = GenCube<eT, gen_type>::generate();
+    
+    out_mem[i] -= tmp_i;
+    out_mem[j] -= tmp_j;
+    }
+  
+  if(i < n_elem)
+    {
+    out_mem[i] -= GenCube<eT, gen_type>::generate();
+    }
+  }
+
+
+
+
+template<typename eT, typename gen_type>
+inline
+void
+GenCube<eT, gen_type>::apply_inplace_schur(Cube<eT>& out) const
+  {
+  arma_extra_debug_sigprint();
+  
+  arma_debug_assert_same_size(out.n_rows, out.n_cols, out.n_slices, n_rows, n_cols, n_slices, "element-wise multiplication");
+  
+  
+        eT*   out_mem = out.memptr();
+  const uword n_elem  = out.n_elem;
+  
+  uword i,j;
+  
+  for(i=0, j=1; j<n_elem; i+=2, j+=2)
+    {
+    const eT tmp_i = GenCube<eT, gen_type>::generate();
+    const eT tmp_j = GenCube<eT, gen_type>::generate();
+    
+    out_mem[i] *= tmp_i;
+    out_mem[j] *= tmp_j;
+    }
+  
+  if(i < n_elem)
+    {
+    out_mem[i] *= GenCube<eT, gen_type>::generate();
+    }
+  }
+
+
+
+
+template<typename eT, typename gen_type>
+inline
+void
+GenCube<eT, gen_type>::apply_inplace_div(Cube<eT>& out) const
+  {
+  arma_extra_debug_sigprint();
+  
+  arma_debug_assert_same_size(out.n_rows, out.n_cols, out.n_slices, n_rows, n_cols, n_slices, "element-wise division");
+  
+  
+        eT*   out_mem = out.memptr();
+  const uword n_elem  = out.n_elem;
+  
+  uword i,j;
+  
+  for(i=0, j=1; j<n_elem; i+=2, j+=2)
+    {
+    const eT tmp_i = GenCube<eT, gen_type>::generate();
+    const eT tmp_j = GenCube<eT, gen_type>::generate();
+    
+    out_mem[i] /= tmp_i;
+    out_mem[j] /= tmp_j;
+    }
+  
+  if(i < n_elem)
+    {
+    out_mem[i] /= GenCube<eT, gen_type>::generate();
+    }
+  }
+
+
+
+
+//! @}