spot/src/evtgba/symbol.hh
Alexandre Duret-Lutz 73ff928b6f Preliminary support for Event-based GBA.
* src/evtgba/Makefile.am, src/evtgba/evtgba.cc,
src/evtgba/evtgba.hh, src/evtgba/evtgbaiter.hh,
src/evtgba/explicit.cc, src/evtgba/explicit.hh,
src/evtgba/product.cc, src/evtgba/product.hh,
src/evtgba/symbol.cc, src/evtgba/symbol.hh,
src/evtgbaalgos/Makefile.am, src/evtgbaalgos/dotty.cc,
src/evtgbaalgos/dotty.hh, src/evtgbaalgos/reachiter.cc,
src/evtgbaalgos/reachiter.hh, src/evtgbaalgos/save.cc,
src/evtgbaalgos/save.hh, src/evtgbaparse/Makefile.am,
src/evtgbaparse/evtgbaparse.yy, src/evtgbaparse/evtgbascan.ll,
src/evtgbaparse/fmterror.cc, src/evtgbaparse/parsedecl.hh,
src/evtgbaparse/public.hh, src/evtgbatest/Makefile.am,
src/evtgbatest/defs.in, src/evtgbatest/explicit.cc,
src/evtgbatest/explicit.test, src/evtgbatest/product.cc,
src/evtgbatest/product.test, src/evtgbatest/readsave.cc,
src/evtgbatest/readsave.test: New files.
* configure.ac: Create the Makefiles in these new subdirectories.
* src/Makefile.am: Recurse them.
2004-10-22 16:22:31 +00:00

126 lines
2.7 KiB
C++

// Copyright (C) 2004 Laboratoire d'Informatique de Paris 6 (LIP6),
// département Systèmes Répartis Coopératifs (SRC), Université Pierre
// et Marie Curie.
//
// This file is part of Spot, a model checking library.
//
// Spot 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 2 of the License, or
// (at your option) any later version.
//
// Spot 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 Spot; see the file COPYING. If not, write to the Free
// Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
// 02111-1307, USA.
#ifndef SPOT_EVTGBA_SYMBOL_HH
# define SPOT_EVTGBA_SYMBOL_HH
#include <string>
#include <iosfwd>
#include <map>
#include <set>
namespace spot
{
class symbol
{
public:
static const symbol* instance(const std::string& name);
const std::string& name() const;
/// Number of instantiated atomic propositions. For debugging.
static unsigned instance_count();
/// List all instances of atomic propositions. For debugging.
static std::ostream& dump_instances(std::ostream& os);
void ref() const;
void unref() const;
protected:
int ref_count_() const;
symbol(const std::string* name);
~symbol();
typedef std::map<const std::string, const symbol*> map;
static map instances_;
private:
symbol(const symbol&); /// Undefined.
const std::string* name_;
mutable int refs_;
};
class rsymbol
{
public:
rsymbol(const symbol* s): s_(s)
{
}
rsymbol(const std::string& s): s_(symbol::instance(s))
{
}
rsymbol(const char* s): s_(symbol::instance(s))
{
}
rsymbol(const rsymbol& rs): s_(rs.s_)
{
s_->ref();
}
~rsymbol()
{
s_->unref();
}
operator const symbol*() const
{
return s_;
}
const rsymbol&
operator=(const rsymbol& rs)
{
if (this != &rs)
{
this->~rsymbol();
new (this) rsymbol(rs);
}
return *this;
}
bool
operator==(const rsymbol& rs) const
{
return s_ == rs.s_;
}
bool
operator!=(const rsymbol& rs) const
{
return s_ != rs.s_;
}
bool
operator<(const rsymbol& rs) const
{
return s_ < rs.s_;
}
private:
const symbol* s_;
};
typedef std::set<const symbol*> symbol_set;
typedef std::set<rsymbol> rsymbol_set;
}
#endif // SPOT_EVTGBA_SYMBOL_HH