// Copyright (C) 2008-2012 NICTA (www.nicta.com.au)
// Copyright (C) 2008-2012 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 op_misc
//! @{



template<typename T1>
inline
void
op_real::apply( Mat<typename T1::pod_type>& out, const mtOp<typename T1::pod_type, T1, op_real>& X )
  {
  arma_extra_debug_sigprint();
  
  typedef typename T1::pod_type T;
  
  const Proxy<T1> P(X.m);
  
  const uword n_rows = P.get_n_rows();
  const uword n_cols = P.get_n_cols();
    
  out.set_size(n_rows, n_cols);
  
  T* out_mem = out.memptr();
  
  if(Proxy<T1>::prefer_at_accessor == false)
    {
    typedef typename Proxy<T1>::ea_type ea_type;
    
    const uword   n_elem  = P.get_n_elem();
          ea_type A       = P.get_ea();
    
    for(uword i=0; i < n_elem; ++i)
      {
      out_mem[i] = std::real( A[i] );
      }
    }
  else
    {
    for(uword col=0; col < n_cols; ++col)
    for(uword row=0; row < n_rows; ++row)
      {
      *out_mem = std::real( P.at(row,col) );
      out_mem++;
      }
    }
  }



template<typename T1>
inline
void
op_real::apply( Cube<typename T1::pod_type>& out, const mtOpCube<typename T1::pod_type, T1, op_real>& X )
  {
  arma_extra_debug_sigprint();
  
  typedef typename T1::pod_type T;
  
  const ProxyCube<T1> P(X.m);
  
  const uword n_rows   = P.get_n_rows();
  const uword n_cols   = P.get_n_cols();
  const uword n_slices = P.get_n_slices();
    
  out.set_size(n_rows, n_cols, n_slices);
  
  T* out_mem = out.memptr();

  if(ProxyCube<T1>::prefer_at_accessor == false)
    {
    typedef typename ProxyCube<T1>::ea_type ea_type;
    
    const uword   n_elem  = P.get_n_elem();
          ea_type A       = P.get_ea();
    
    for(uword i=0; i < n_elem; ++i)
      {
      out_mem[i] = std::real( A[i] );
      }
    }
  else
    {
    for(uword slice=0; slice < n_slices; ++slice)
    for(uword col=0;   col   < n_cols;   ++col  )
    for(uword row=0;   row   < n_rows;   ++row  )
      {
      *out_mem = std::real( P.at(row,col,slice) );
      out_mem++;
      }
    }
  }



template<typename T1>
inline
void
op_imag::apply( Mat<typename T1::pod_type>& out, const mtOp<typename T1::pod_type, T1, op_imag>& X )
  {
  arma_extra_debug_sigprint();
  
  typedef typename T1::pod_type T;
  
  const Proxy<T1> P(X.m);
  
  const uword n_rows = P.get_n_rows();
  const uword n_cols = P.get_n_cols();
    
  out.set_size(n_rows, n_cols);
  
  T* out_mem = out.memptr();
  
  if(Proxy<T1>::prefer_at_accessor == false)
    {
    typedef typename Proxy<T1>::ea_type ea_type;
    
    const uword   n_elem  = P.get_n_elem();
          ea_type A       = P.get_ea();
    
    for(uword i=0; i < n_elem; ++i)
      {
      out_mem[i] = std::imag( A[i] );
      }
    }
  else
    {
    for(uword col=0; col < n_cols; ++col)
    for(uword row=0; row < n_rows; ++row)
      {
      *out_mem = std::imag( P.at(row,col) );
      out_mem++;
      }
    }
  }



template<typename T1>
inline
void
op_imag::apply( Cube<typename T1::pod_type>& out, const mtOpCube<typename T1::pod_type, T1, op_imag>& X )
  {
  arma_extra_debug_sigprint();
  
  typedef typename T1::pod_type T;
  
  const ProxyCube<T1> P(X.m);
  
  const uword n_rows   = P.get_n_rows();
  const uword n_cols   = P.get_n_cols();
  const uword n_slices = P.get_n_slices();
    
  out.set_size(n_rows, n_cols, n_slices);
  
  T* out_mem = out.memptr();

  if(ProxyCube<T1>::prefer_at_accessor == false)
    {
    typedef typename ProxyCube<T1>::ea_type ea_type;
    
    const uword   n_elem  = P.get_n_elem();
          ea_type A       = P.get_ea();
    
    for(uword i=0; i < n_elem; ++i)
      {
      out_mem[i] = std::imag( A[i] );
      }
    }
  else
    {
    for(uword slice=0; slice < n_slices; ++slice)
    for(uword col=0;   col   < n_cols;   ++col  )
    for(uword row=0;   row   < n_rows;   ++row  )
      {
      *out_mem = std::imag( P.at(row,col,slice) );
      out_mem++;
      }
    }
  }



template<typename T1>
inline
void
op_abs::apply( Mat<typename T1::pod_type>& out, const mtOp<typename T1::pod_type, T1, op_abs>& X )
  {
  arma_extra_debug_sigprint();
  
  typedef typename T1::pod_type T;
  
  const Proxy<T1> P(X.m);
  
  const uword n_rows = P.get_n_rows();
  const uword n_cols = P.get_n_cols();
    
  out.set_size(n_rows, n_cols);
  
  T* out_mem = out.memptr();
  
  if(Proxy<T1>::prefer_at_accessor == false)
    {
    typedef typename Proxy<T1>::ea_type ea_type;
    
    const uword   n_elem  = P.get_n_elem();
          ea_type A       = P.get_ea();
    
    for(uword i=0; i < n_elem; ++i)
      {
      out_mem[i] = std::abs( A[i] );
      }
    }
  else
    {
    for(uword col=0; col < n_cols; ++col)
    for(uword row=0; row < n_rows; ++row)
      {
      *out_mem = std::abs( P.at(row,col) );
      out_mem++;
      }
    }
  }



template<typename T1>
inline
void
op_abs::apply( Cube<typename T1::pod_type>& out, const mtOpCube<typename T1::pod_type, T1, op_abs>& X )
  {
  arma_extra_debug_sigprint();
  
  typedef typename T1::pod_type T;
  
  const ProxyCube<T1> P(X.m);
  
  const uword n_rows   = P.get_n_rows();
  const uword n_cols   = P.get_n_cols();
  const uword n_slices = P.get_n_slices();
    
  out.set_size(n_rows, n_cols, n_slices);
  
  T* out_mem = out.memptr();

  if(ProxyCube<T1>::prefer_at_accessor == false)
    {
    typedef typename ProxyCube<T1>::ea_type ea_type;
    
    const uword   n_elem  = P.get_n_elem();
          ea_type A       = P.get_ea();
    
    for(uword i=0; i < n_elem; ++i)
      {
      out_mem[i] = std::abs( A[i] );
      }
    }
  else
    {
    for(uword slice=0; slice < n_slices; ++slice)
    for(uword col=0;   col   < n_cols;   ++col  )
    for(uword row=0;   row   < n_rows;   ++row  )
      {
      *out_mem = std::abs( P.at(row,col,slice) );
      out_mem++;
      }
    }
  }



template<typename T1>
inline
void
op_sympd::apply( Mat<typename T1::elem_type>& out, const Op<T1, op_sympd>& X )
  {
  arma_extra_debug_sigprint();
  
  out = X.m;
  }



//! @}
