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/* Variables_Set class declaration.
Copyright (C) 2001-2010 Roberto Bagnara <bagnara@cs.unipr.it>
Copyright (C) 2010-2011 BUGSENG srl (http://bugseng.com)
This file is part of the Parma Polyhedra Library (PPL).
The PPL is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
The PPL is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307, USA.
For the most up-to-date information see the Parma Polyhedra Library
site: http://www.cs.unipr.it/ppl/ . */
#ifndef PPL_Variables_Set_defs_hh
#define PPL_Variables_Set_defs_hh 1
#include "Variables_Set.types.hh"
#include "Variable.defs.hh"
#include "globals.types.hh"
#include <iosfwd>
#include <set>
namespace Parma_Polyhedra_Library {
namespace IO_Operators {
//! Output operator.
/*! \relates Parma_Polyhedra_Library::Variables_Set */
std::ostream&
operator<<(std::ostream& s, const Variables_Set& v);
} // namespace IO_Operators
} // namespace Parma_Polyhedra_Library
//! An std::set of variables' indexes.
class Parma_Polyhedra_Library::Variables_Set
: public std::set<dimension_type> {
private:
typedef std::set<dimension_type> Base;
public:
//! Builds the empty set of variable indexes.
Variables_Set();
//! Builds the singleton set of indexes containing <CODE>v.id()</CODE>;
explicit Variables_Set(const Variable& v);
/*! \brief
Builds the set of variables's indexes in the range from
<CODE>v.id()</CODE> to <CODE>w.id()</CODE>.
If <CODE>v.id() <= w.id()</CODE>, this constructor builds the
set of variables' indexes
<CODE>v.id()</CODE>, <CODE>v.id()+1</CODE>, ..., <CODE>w.id()</CODE>.
The empty set is built otherwise.
*/
Variables_Set(const Variable& v, const Variable& w);
//! Returns the maximum space dimension a Variables_Set can handle.
static dimension_type max_space_dimension();
/*! \brief
Returns the dimension of the smallest vector space enclosing all
the variables whose indexes are in the set.
*/
dimension_type space_dimension() const;
//! Inserts the index of variable \p v into the set.
void insert(Variable v);
// The `insert' method above overloads (instead of hiding) the
// other `insert' method of std::set.
using Base::insert;
/*! \brief
Loads from \p s an ASCII representation (as produced by
ascii_dump(std::ostream&) const) and sets \p *this accordingly.
Returns <CODE>true</CODE> if successful, <CODE>false</CODE> otherwise.
*/
bool ascii_load(std::istream& s);
//! Returns the total size in bytes of the memory occupied by \p *this.
memory_size_type total_memory_in_bytes() const;
//! Returns the size in bytes of the memory managed by \p *this.
memory_size_type external_memory_in_bytes() const;
//! Checks if all the invariants are satisfied.
bool OK() const;
PPL_OUTPUT_DECLARATIONS
};
#include "Variables_Set.inlines.hh"
#endif // !defined(PPL_Variables_Set_defs_hh)
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