PPL  1.2
Parma_Polyhedra_Library::Grid_Certificate Class Reference

The convergence certificate for the Grid widening operator. More...

#include <ppl.hh>

Classes

struct  Compare
 A total ordering on Grid certificates. More...
 

Public Member Functions

 Grid_Certificate ()
 Default constructor.
 
 Grid_Certificate (const Grid &gr)
 Constructor: computes the certificate for gr.
 
 Grid_Certificate (const Grid_Certificate &y)
 Copy constructor.
 
 ~Grid_Certificate ()
 Destructor.
 
int compare (const Grid_Certificate &y) const
 The comparison function for certificates. More...
 
int compare (const Grid &gr) const
 Compares *this with the certificate for grid gr.
 

Detailed Description

The convergence certificate for the Grid widening operator.

Convergence certificates are used to instantiate the BHZ03 framework so as to define widening operators for the finite powerset domain.

Note
Each convergence certificate has to be used together with a compatible widening operator. In particular, Grid_Certificate can certify the Grid widening.

Member Function Documentation

int Parma_Polyhedra_Library::Grid_Certificate::compare ( const Grid_Certificate y) const

The comparison function for certificates.

Returns
$-1$, $0$ or $1$ depending on whether *this is smaller than, equal to, or greater than y, respectively.

The documentation for this class was generated from the following file: