operator_plus.hpp

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// Copyright (C) 2008-2010 NICTA (www.nicta.com.au)
// Copyright (C) 2008-2010 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)





template<typename T1>
arma_inline
const Base<typename T1::elem_type,T1>&
operator+
(const Base<typename T1::elem_type,T1>& X)
  {
  arma_extra_debug_sigprint();
  
  return X;
  }



template<typename T1>
arma_inline
const eOp<T1, eop_scalar_plus>
operator+
(const Base<typename T1::elem_type,T1>& X, const typename T1::elem_type k)
  {
  arma_extra_debug_sigprint();
  
  return eOp<T1, eop_scalar_plus>(X.get_ref(), k);
  }



template<typename T1>
arma_inline
const eOp<T1, eop_scalar_plus>
operator+
(const typename T1::elem_type k, const Base<typename T1::elem_type,T1>& X)
  {
  arma_extra_debug_sigprint();
  
  return eOp<T1, eop_scalar_plus>(X.get_ref(), k);  // NOTE: order is swapped
  }



template<typename T1>
arma_inline
const mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_plus>
operator+
  (
  const Base<typename T1::pod_type, 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_plus>('j', X.get_ref(), k);
  }



template<typename T1>
arma_inline
const mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_plus>
operator+
  (
  const std::complex<typename T1::pod_type>& k,
  const Base<typename T1::pod_type, T1>&     X
  )
  {
  arma_extra_debug_sigprint();
  
  return mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_plus>('j', X.get_ref(), k);  // NOTE: order is swapped
  }



template<typename T1, typename T2>
arma_inline
const eGlue<T1, T2, eglue_plus>
operator+
  (
  const Base<typename T1::elem_type,T1>& X,
  const Base<typename T1::elem_type,T2>& Y
  )
  {
  arma_extra_debug_sigprint();
  
  return eGlue<T1, T2, eglue_plus>(X.get_ref(), Y.get_ref());
  }



template<typename T1, typename T2>
inline
const mtGlue<typename promote_type<typename T1::elem_type, typename T2::elem_type>::result, T1, T2, glue_mixed_plus>
operator+
  (
  const Base< typename force_different_type<typename T1::elem_type, typename T2::elem_type>::T1_result, T1>& X,
  const Base< typename force_different_type<typename T1::elem_type, typename T2::elem_type>::T2_result, 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_plus>( X.get_ref(), Y.get_ref() );
  }