comparison armadillo-2.4.4/include/armadillo_bits/operator_minus.hpp @ 0:8b6102e2a9b0

Armadillo Library

+// 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)
+
+
+//! \addtogroup operator_minus
+//! @{
+
+
+
+//! unary -
+template<typename T1>
+arma_inline
+const eOp<T1, eop_neg>
+operator-
+(const Base<typename T1::elem_type,T1>& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  return eOp<T1,eop_neg>(X.get_ref());
+  }
+
+
+
+//! cancellation of two consecutive negations: -(-T1)
+template<typename T1>
+arma_inline
+const T1&
+operator-
+(const eOp<T1, eop_neg>& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  return X.m;
+  }
+
+
+
+//! Base - scalar
+template<typename T1>
+arma_inline
+const eOp<T1, eop_scalar_minus_post>
+operator-
+  (
+  const Base<typename T1::elem_type,T1>& X,
+  const typename T1::elem_type           k
+  )
+  {
+  arma_extra_debug_sigprint();
+  
+  return eOp<T1, eop_scalar_minus_post>(X.get_ref(), k);
+  }
+
+
+
+//! scalar - Base
+template<typename T1>
+arma_inline
+const eOp<T1, eop_scalar_minus_pre>
+operator-
+  (
+  const typename T1::elem_type           k,
+  const Base<typename T1::elem_type,T1>& X
+  )
+  {
+  arma_extra_debug_sigprint();
+  
+  return eOp<T1, eop_scalar_minus_pre>(X.get_ref(), k);
+  }
+
+
+
+//! complex scalar - non-complex Base (experimental)
+template<typename T1>
+arma_inline
+const mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_minus_pre>
+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_minus_pre>('j', X.get_ref(), k);
+  }
+
+
+
+//! non-complex Base - complex scalar (experimental)
+template<typename T1>
+arma_inline
+const mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_minus_post>
+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_minus_post>('j', X.get_ref(), k);
+  }
+
+
+
+//! subtraction of Base objects with same element type
+template<typename T1, typename T2>
+arma_inline
+const eGlue<T1, T2, eglue_minus>
+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_minus>(X.get_ref(), Y.get_ref());
+  }
+
+
+
+//! subtraction of Base objects with different element types
+template<typename T1, typename T2>
+inline
+const mtGlue<typename promote_type<typename T1::elem_type, typename T2::elem_type>::result, T1, T2, glue_mixed_minus>
+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_minus>( X.get_ref(), Y.get_ref() );
+  }
+
+
+
+//! @}