Chris@49: // Copyright (C) 2010-2012 NICTA (www.nicta.com.au)
Chris@49: // Copyright (C) 2010-2012 Conrad Sanderson
Chris@49: // Copyright (C) 2011 Stanislav Funiak
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: 
Chris@49: //! \addtogroup span
Chris@49: //! @{
Chris@49: 
Chris@49: 
Chris@49: struct span_alt {};
Chris@49: 
Chris@49: 
Chris@49: template<typename Dummy = int>
Chris@49: class span_base
Chris@49:   {
Chris@49:   public:
Chris@49:   static const span_alt all;
Chris@49:   };
Chris@49: 
Chris@49: 
Chris@49: template<typename Dummy>
Chris@49: const span_alt span_base<Dummy>::all = span_alt();
Chris@49: 
Chris@49: 
Chris@49: class span : public span_base<>
Chris@49:   {
Chris@49:   public:
Chris@49: 
Chris@49:   uword a;
Chris@49:   uword b;
Chris@49:   bool  whole;
Chris@49:   
Chris@49:   inline
Chris@49:   span()
Chris@49:     : whole(true)
Chris@49:     {
Chris@49:     }
Chris@49:   
Chris@49:   
Chris@49:   inline
Chris@49:   span(const span_alt&)
Chris@49:     : whole(true)
Chris@49:     {
Chris@49:     }
Chris@49:   
Chris@49:   // TODO:
Chris@49:   // if the "explicit" keyword is removed or commented out,
Chris@49:   // the compiler will be able to automatically convert integers to an instance of the span class.
Chris@49:   // this is useful for Cube::operator()(span&, span&, span&),
Chris@49:   // but it might have unintended consequences or interactions elsewhere.
Chris@49:   // as such, removal of "explicit" needs thorough testing.
Chris@49:   inline
Chris@49:   explicit
Chris@49:   span(const uword in_a)
Chris@49:     : a(in_a)
Chris@49:     , b(in_a)
Chris@49:     , whole(false)
Chris@49:     {
Chris@49:     }
Chris@49:   
Chris@49:   
Chris@49:   #if defined(ARMA_USE_CXX11)
Chris@49:     span(const double in_a) = delete;
Chris@49:   #endif
Chris@49:   
Chris@49:   
Chris@49:   inline
Chris@49:   span(const uword in_a, const uword in_b)
Chris@49:     : a(in_a)
Chris@49:     , b(in_b)
Chris@49:     , whole(false)
Chris@49:     {
Chris@49:     }
Chris@49: 
Chris@49:   };
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: //! @}