max@0: // Copyright (C) 2009-2010 NICTA (www.nicta.com.au)
max@0: // Copyright (C) 2009-2010 Conrad Sanderson
max@0: // Copyright (C) 2009-2010 Dimitrios Bouzas
max@0: // 
max@0: // This file is part of the Armadillo C++ library.
max@0: // It is provided without any warranty of fitness
max@0: // for any purpose. You can redistribute this file
max@0: // and/or modify it under the terms of the GNU
max@0: // Lesser General Public License (LGPL) as published
max@0: // by the Free Software Foundation, either version 3
max@0: // of the License or (at your option) any later version.
max@0: // (see http://www.opensource.org/licenses for more info)
max@0: 
max@0: 
max@0: 
max@0: //! \addtogroup fn_eps
max@0: //! @{
max@0: 
max@0: 
max@0: 
max@0: //! \brief
max@0: //! eps version for non-complex matrices and vectors
max@0: template<typename T1>
max@0: inline
max@0: const eOp<T1, eop_eps>
max@0: eps(const Base<typename T1::elem_type, T1>& X, const typename arma_not_cx<typename T1::elem_type>::result* junk = 0)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   arma_ignore(junk);
max@0:   
max@0:   typedef typename T1::elem_type eT;
max@0:   
max@0:   return eOp<T1, eop_eps>(X.get_ref());
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! \brief
max@0: //! eps version for complex matrices and vectors
max@0: template<typename T1>
max@0: inline
max@0: Mat< typename T1::pod_type >
max@0: eps(const Base< std::complex<typename T1::pod_type>, T1>& X, const typename arma_cx_only<typename T1::elem_type>::result* junk = 0)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   arma_ignore(junk);
max@0:   
max@0:   typedef typename T1::pod_type   T;
max@0:   typedef typename T1::elem_type eT;
max@0:   
max@0:   const unwrap<T1>   tmp(X.get_ref());
max@0:   const Mat<eT>& A = tmp.M;
max@0:   
max@0:   Mat<T> out(A.n_rows, A.n_cols);
max@0:   
max@0:          T* out_mem = out.memptr();
max@0:   const eT* A_mem   = A.memptr();
max@0:   const uword n_elem  = A.n_elem;
max@0:   
max@0:   for(uword i=0; i<n_elem; ++i)
max@0:     {
max@0:     out_mem[i] = eop_aux::direct_eps( A_mem[i] );
max@0:     }
max@0:   
max@0:   
max@0:   return out;
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: arma_inline
max@0: arma_warn_unused
max@0: typename arma_integral_only<eT>::result
max@0: eps(const eT& x)
max@0:   {
max@0:   arma_ignore(x);
max@0:   
max@0:   return eT(0);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename eT>
max@0: arma_inline
max@0: arma_warn_unused
max@0: typename arma_float_only<eT>::result
max@0: eps(const eT& x)
max@0:   {
max@0:   return eop_aux::direct_eps(x);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: template<typename T>
max@0: arma_inline
max@0: arma_warn_unused
max@0: typename arma_float_only<T>::result
max@0: eps(const std::complex<T>& x)
max@0:   {
max@0:   return eop_aux::direct_eps(x);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! @}