max@0: // Copyright (C) 2008-2010 NICTA (www.nicta.com.au)
max@0: // Copyright (C) 2008-2010 Conrad Sanderson
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: //! \addtogroup operator_minus
max@0: //! @{
max@0: 
max@0: 
max@0: 
max@0: //! unary -
max@0: template<typename T1>
max@0: arma_inline
max@0: const eOp<T1, eop_neg>
max@0: operator-
max@0: (const Base<typename T1::elem_type,T1>& X)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   return eOp<T1,eop_neg>(X.get_ref());
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! cancellation of two consecutive negations: -(-T1)
max@0: template<typename T1>
max@0: arma_inline
max@0: const T1&
max@0: operator-
max@0: (const eOp<T1, eop_neg>& X)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   return X.m;
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! Base - scalar
max@0: template<typename T1>
max@0: arma_inline
max@0: const eOp<T1, eop_scalar_minus_post>
max@0: operator-
max@0:   (
max@0:   const Base<typename T1::elem_type,T1>& X,
max@0:   const typename T1::elem_type           k
max@0:   )
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   return eOp<T1, eop_scalar_minus_post>(X.get_ref(), k);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! scalar - Base
max@0: template<typename T1>
max@0: arma_inline
max@0: const eOp<T1, eop_scalar_minus_pre>
max@0: operator-
max@0:   (
max@0:   const typename T1::elem_type           k,
max@0:   const Base<typename T1::elem_type,T1>& X
max@0:   )
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   return eOp<T1, eop_scalar_minus_pre>(X.get_ref(), k);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! complex scalar - non-complex Base (experimental)
max@0: template<typename T1>
max@0: arma_inline
max@0: const mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_minus_pre>
max@0: operator-
max@0:   (
max@0:   const std::complex<typename T1::pod_type>& k,
max@0:   const Base<typename T1::pod_type, T1>&     X
max@0:   )
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   return mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_minus_pre>('j', X.get_ref(), k);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! non-complex Base - complex scalar (experimental)
max@0: template<typename T1>
max@0: arma_inline
max@0: const mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_minus_post>
max@0: operator-
max@0:   (
max@0:   const Base<typename T1::pod_type, T1>&     X,
max@0:   const std::complex<typename T1::pod_type>& k
max@0:   )
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   return mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_minus_post>('j', X.get_ref(), k);
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! subtraction of Base objects with same element type
max@0: template<typename T1, typename T2>
max@0: arma_inline
max@0: const eGlue<T1, T2, eglue_minus>
max@0: operator-
max@0:   (
max@0:   const Base<typename T1::elem_type,T1>& X,
max@0:   const Base<typename T1::elem_type,T2>& Y
max@0:   )
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   return eGlue<T1, T2, eglue_minus>(X.get_ref(), Y.get_ref());
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! subtraction of Base objects with different element types
max@0: template<typename T1, typename T2>
max@0: inline
max@0: const mtGlue<typename promote_type<typename T1::elem_type, typename T2::elem_type>::result, T1, T2, glue_mixed_minus>
max@0: operator-
max@0:   (
max@0:   const Base< typename force_different_type<typename T1::elem_type, typename T2::elem_type>::T1_result, T1>& X,
max@0:   const Base< typename force_different_type<typename T1::elem_type, typename T2::elem_type>::T2_result, T2>& Y
max@0:   )
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   typedef typename T1::elem_type eT1;
max@0:   typedef typename T2::elem_type eT2;
max@0:   
max@0:   typedef typename promote_type<eT1,eT2>::result out_eT;
max@0:   
max@0:   promote_type<eT1,eT2>::check();
max@0:   
max@0:   return mtGlue<out_eT, T1, T2, glue_mixed_minus>( X.get_ref(), Y.get_ref() );
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! @}