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An Image Processing Platform
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concept/scalar.hh
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// Copyright (C) 2007, 2008, 2009 EPITA Research and Development Laboratory (LRDE)
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//
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// This file is part of Olena.
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//
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// Olena is free software: you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation, version 2 of the License.
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//
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// Olena is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Olena. If not, see <http://www.gnu.org/licenses/>.
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//
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// As a special exception, you may use this file as part of a free
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// software project without restriction. Specifically, if other files
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// instantiate templates or use macros or inline functions from this
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// file, or you compile this file and link it with other files to produce
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// an executable, this file does not by itself cause the resulting
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// executable to be covered by the GNU General Public License. This
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// exception does not however invalidate any other reasons why the
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// executable file might be covered by the GNU General Public License.
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#ifndef MLN_VALUE_CONCEPT_SCALAR_HH
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# define MLN_VALUE_CONCEPT_SCALAR_HH
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# include <mln/core/concept/value.hh>
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# include <mln/literal/one.hh>
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namespace
mln
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{
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namespace
value
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{
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// Fwd decl.
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template
<
typename
E>
struct
Scalar;
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// Category flag type.
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template
<>
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struct
Scalar
<void>
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{
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typedef
Value<void>
super
;
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};
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template
<
typename
E>
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struct
Scalar
:
public
Value
<E>
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{
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typedef
Scalar<void>
category
;
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};
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}
// end of namespace mln::value
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template
<
typename
S>
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S&
operator++
(
value::Scalar<S>
&
rhs
);
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template
<
typename
S>
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S&
operator--
(
value::Scalar<S>
&
rhs
);
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# ifndef MLN_INCLUDE_ONLY
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template
<
typename
S>
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inline
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S&
operator++
(
value::Scalar<S>
&
rhs
)
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{
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mlc_converts_to(
literal::one_t
, S)::check();
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return
exact
(rhs) += S(
literal::one
);
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}
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template
<
typename
S>
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inline
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S&
operator--
(value::Scalar<S>& rhs)
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{
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mlc_converts_to(literal::one_t, S)::check();
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return
exact
(rhs) -= S(
literal::one
);
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}
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# endif // ! MLN_INCLUDE_ONLY
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}
// end of namespace mln
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#endif // ! MLN_VALUE_CONCEPT_SCALAR_HH
mln
value
concept
scalar.hh
Copyright (C) 2012 EPITA Research and Development Laboratory (LRDE)