80 lines
1.3 KiB
C++
80 lines
1.3 KiB
C++
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// Copyright (C) 2010-2012 National ICT Australia (NICTA)
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// -------------------------------------------------------------------
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//
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// Written by Conrad Sanderson - http://conradsanderson.id.au
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// Written by Stanislav Funiak
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//! \addtogroup span
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//! @{
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struct span_alt {};
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template<typename Dummy = int>
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class span_base
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{
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public:
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static const span_alt all;
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};
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template<typename Dummy>
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const span_alt span_base<Dummy>::all = span_alt();
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class span : public span_base<>
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{
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public:
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uword a;
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uword b;
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bool whole;
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inline
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span()
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: whole(true)
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{
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}
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inline
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span(const span_alt&)
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: whole(true)
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{
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}
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inline
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explicit
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span(const uword in_a)
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: a(in_a)
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, b(in_a)
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, whole(false)
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{
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}
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// the "explicit" keyword is required here to prevent a C++11 compiler
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// automatically converting {a,b} into an instance of span() when submatrices are specified
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inline
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explicit
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span(const uword in_a, const uword in_b)
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: a(in_a)
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, b(in_b)
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, whole(false)
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{
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}
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};
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//! @}
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