91 lines
1.6 KiB
C++
91 lines
1.6 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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//
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// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
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// Copyright 2008-2016 National ICT Australia (NICTA)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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//! \addtogroup span
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//! @{
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struct span_alt {};
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template<typename junk = 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 junk>
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const span_alt span_base<junk>::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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: a(0)
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, b(0)
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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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: a(0)
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, b(0)
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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 automatic conversion of {a,b}
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// 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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