Chris@49: // Copyright (C) 2008-2010 NICTA (www.nicta.com.au)
Chris@49: // Copyright (C) 2008-2010 Conrad Sanderson
Chris@49: // 
Chris@49: // This Source Code Form is subject to the terms of the Mozilla Public
Chris@49: // License, v. 2.0. If a copy of the MPL was not distributed with this
Chris@49: // file, You can obtain one at http://mozilla.org/MPL/2.0/.
Chris@49: 
Chris@49: 
Chris@49: //! \addtogroup operator_cube_minus
Chris@49: //! @{
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: //! unary -
Chris@49: template<typename T1>
Chris@49: arma_inline
Chris@49: const eOpCube<T1, eop_neg>
Chris@49: operator-
Chris@49:   (
Chris@49:   const BaseCube<typename T1::elem_type,T1>& X
Chris@49:   )
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   
Chris@49:   return eOpCube<T1, eop_neg>(X.get_ref());
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: //! cancellation of two consecutive negations: -(-T1)
Chris@49: template<typename T1>
Chris@49: arma_inline
Chris@49: const T1&
Chris@49: operator-
Chris@49:   (
Chris@49:   const eOpCube<T1, eop_neg>& X
Chris@49:   )
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   
Chris@49:   return X.m;
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: //! BaseCube - scalar
Chris@49: template<typename T1>
Chris@49: arma_inline
Chris@49: const eOpCube<T1, eop_scalar_minus_post>
Chris@49: operator-
Chris@49:   (
Chris@49:   const BaseCube<typename T1::elem_type,T1>& X,
Chris@49:   const typename T1::elem_type               k
Chris@49:   )
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   
Chris@49:   return eOpCube<T1, eop_scalar_minus_post>(X.get_ref(), k);
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: //! scalar - BaseCube
Chris@49: template<typename T1>
Chris@49: arma_inline
Chris@49: const eOpCube<T1, eop_scalar_minus_pre>
Chris@49: operator-
Chris@49:   (
Chris@49:   const typename T1::elem_type               k,
Chris@49:   const BaseCube<typename T1::elem_type,T1>& X
Chris@49:   )
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   
Chris@49:   return eOpCube<T1, eop_scalar_minus_pre>(X.get_ref(), k);
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: //! complex scalar - non-complex BaseCube (experimental)
Chris@49: template<typename T1>
Chris@49: arma_inline
Chris@49: const mtOpCube<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_minus_pre>
Chris@49: operator-
Chris@49:   (
Chris@49:   const std::complex<typename T1::pod_type>& k,
Chris@49:   const BaseCube<typename T1::pod_type, T1>& X
Chris@49:   )
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   
Chris@49:   return mtOpCube<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_minus_pre>('j', X.get_ref(), k);
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: //! non-complex BaseCube - complex scalar (experimental)
Chris@49: template<typename T1>
Chris@49: arma_inline
Chris@49: const mtOpCube<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_minus_post>
Chris@49: operator-
Chris@49:   (
Chris@49:   const BaseCube<typename T1::pod_type, T1>& X,
Chris@49:   const std::complex<typename T1::pod_type>& k
Chris@49:   )
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   
Chris@49:   return mtOpCube<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_minus_post>('j', X.get_ref(), k);
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: //! subtraction of BaseCube objects with same element type
Chris@49: template<typename T1, typename T2>
Chris@49: arma_inline
Chris@49: const eGlueCube<T1, T2, eglue_minus>
Chris@49: operator-
Chris@49:   (
Chris@49:   const BaseCube<typename T1::elem_type,T1>& X,
Chris@49:   const BaseCube<typename T1::elem_type,T2>& Y
Chris@49:   )
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   
Chris@49:   return eGlueCube<T1, T2, eglue_minus>(X.get_ref(), Y.get_ref());
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: //! subtraction of BaseCube objects with different element types
Chris@49: template<typename T1, typename T2>
Chris@49: inline
Chris@49: const mtGlueCube<typename promote_type<typename T1::elem_type, typename T2::elem_type>::result, T1, T2, glue_mixed_minus>
Chris@49: operator-
Chris@49:   (
Chris@49:   const BaseCube< typename force_different_type<typename T1::elem_type, typename T2::elem_type>::T1_result, T1>& X,
Chris@49:   const BaseCube< typename force_different_type<typename T1::elem_type, typename T2::elem_type>::T2_result, T2>& Y
Chris@49:   )
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   
Chris@49:   typedef typename T1::elem_type eT1;
Chris@49:   typedef typename T2::elem_type eT2;
Chris@49:   
Chris@49:   typedef typename promote_type<eT1,eT2>::result out_eT;
Chris@49:   
Chris@49:   promote_type<eT1,eT2>::check();
Chris@49:   
Chris@49:   return mtGlueCube<out_eT, T1, T2, glue_mixed_minus>( X.get_ref(), Y.get_ref() );
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: //! @}