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// Unsigned integer (cardinality) type class -*- c++ -*-
#ifndef CARDTYPE_H_
# define CARDTYPE_H_
# ifdef __GNUC__
# pragma interface
# endif // __GNUC__
# include "Type.h"
/** @file CardType.h
* Unsigned integer data type
*/
/* Copyright 2000-2003 Marko Mkel (msmakela@tcs.hut.fi).
This file is part of MARIA, a reachability analyzer and model checker
for high-level Petri nets.
MARIA 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, or (at your option)
any later version.
MARIA 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.
The GNU General Public License is often shipped with GNU software, and
is generally kept in a file called COPYING or LICENSE. If you do not
have a copy of the license, write to the Free Software Foundation,
59 Temple Place, Suite 330, Boston, MA 02111 USA. */
/** Unsigned integer (cardinality) type */
class CardType : public Type
{
public:
/** Constructor */
CardType () : Type (true) {}
/** Copy constructor */
CardType (const class CardType& old) : Type (old) {}
private:
/** Assignment operator */
class CardType& operator= (const class CardType& old);
public:
/** Destructor */
~CardType () {}
/** Copy the Type */
class Type* copy () const { return new class CardType (*this); }
/** Determine the kind of the type */
enum Kind getKind () const { return tCard; }
/** Get the first value of this type */
class Value& getFirstValue () const;
/** Get the last value of this type */
class Value& getLastValue () const;
/** Get the number of possible values for this type */
card_t do_getNumValues () const;
/** Convert a value of this type to a number
* @param value value to be converted
* @return number between 0 and getNumValues () - 1
*/
card_t convert (const class Value& value) const;
/** Convert a number to a value of this type
* @param number number between 0 and getNumValues () - 1
* @return the corresponding value
*/
class Value* convert (card_t number) const;
/** Convert a constrained unsigned integer value to a number
* @param number placeholder: number between 0 and getNumValues (c) - 1
* @param value value to be converted
* @param c the constraint
* @return true if the integer actually is constrained
*/
static bool convert (card_t& number, card_t value,
const class Constraint& c);
/** Convert a number to a value of this type
* @param number number between 0 and getNumValues (c) - 1
* @param c the constraint
* @return the corresponding unsigned integer value
*/
static card_t convert (card_t number, const class Constraint& c);
# ifdef EXPR_COMPILE
/** Generate a C type declaration
* @param out output stream for the declarations
* @param indent indentation level
*/
void compileDefinition (class StringBuffer& out,
unsigned indent) const;
/** Emit code for converting an unconstrained value to a number
* @param out output stream
* @param indent indentation level
* @param value value to be converted
* @param number number to be computed
* @param add flag: add to number instead of assigning
*/
void do_compileConversion (class StringBuffer& out,
unsigned indent,
const char* value,
const char* number,
bool add) const;
/** Emit code for converting a constrained cardinality to a number
* @param out output stream
* @param indent indentation level
* @param c the constraint
* @param value value to be converted
* @param number number to be computed
*/
static void compileConv (class StringBuffer& out,
unsigned indent,
const class Constraint& c,
const char* value,
const char* number);
/** Emit code for converting a number to a constrained cardinality
* @param out output stream
* @param indent indentation level
* @param c the constraint
* @param number number to be converted
* @param value value to be computed
*/
static void compileReverseConv (class StringBuffer& out,
unsigned indent,
const class Constraint& c,
const char* number,
const char* value);
# endif // EXPR_COMPILE
};
#endif // CARDTYPE_H_
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