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yes.hh
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// Copyright (C) 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_UTIL_YES_HH
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# define MLN_UTIL_YES_HH
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# include <mln/core/concept/object.hh>
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# include <mln/core/routine/ops.hh>
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namespace
mln
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{
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// Forward declaration.
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namespace
util {
struct
yes; }
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namespace
trait
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{
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template
<>
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struct
set_precise_unary_< op::
not_
, util::yes >
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{
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typedef
util::yes
ret
;
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};
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template
<
template
<
class
,
class
>
class
Op>
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struct
set_precise_binary_< Op, util::yes,
bool
>
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{
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typedef
util::yes
ret
;
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};
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template
<
template
<
class
,
class
>
class
Op>
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struct
set_precise_binary_< Op, util::yes, util::yes >
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{
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typedef
util::yes
ret
;
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};
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}
// end of namespace mln::trait
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namespace
util
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{
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//
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struct
yes
:
public
Object
< yes >
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{
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yes
();
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explicit
yes
(
bool
);
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operator
bool
()
const
;
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};
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}
// end of namespace mln::util
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// Negate.
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util::yes
operator !
(
const
util::yes
& y);
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// Equal.
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util::yes
operator ==
(
const
util::yes
&,
bool
);
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util::yes
operator ==
(
const
util::yes
&,
const
util::yes
&);
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// Not equal.
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util::yes
operator !=
(
const
util::yes
&,
bool
);
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util::yes
operator !=
(
const
util::yes
&,
const
util::yes
&);
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// And.
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util::yes
operator &&
(
const
util::yes
&,
bool
);
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// Or.
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util::yes
operator ||
(
const
util::yes
&,
bool
);
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// FIXME: Is-it suffisiant?
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# ifndef MLN_INCLUDE_ONLY
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namespace
util
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{
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// yes
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inline
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yes::yes
()
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{
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}
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inline
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yes::yes
(
bool
)
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{
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}
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inline
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yes::operator
bool
()
const
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{
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return
true
;
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}
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}
// end of namespace mln::util
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inline
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util::yes
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operator !
(
const
util::yes& y)
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{
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return
y;
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}
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inline
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util::yes
operator ==
(
const
util::yes&,
bool
)
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{
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return
util::yes(
true
);
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}
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inline
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util::yes
operator ==
(
const
util::yes&,
const
util::yes&)
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{
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return
util::yes(
true
);
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}
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inline
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util::yes
operator !=
(
const
util::yes&,
bool
)
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{
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return
util::yes(
true
);
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}
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inline
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util::yes
operator !=
(
const
util::yes&,
const
util::yes&)
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{
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return
util::yes(
true
);
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}
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inline
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util::yes
operator &&
(
const
util::yes&,
bool
)
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{
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return
util::yes(
true
);
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}
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inline
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util::yes
operator ||
(
const
util::yes&,
bool
)
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{
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return
util::yes(
true
);
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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_UTIL_YES_HH
mln
util
yes.hh
Copyright (C) 2012 EPITA Research and Development Laboratory (LRDE)