96 lines
1.7 KiB
C++
96 lines
1.7 KiB
C++
/*******************************************************************\
|
|
|
|
Module: A minimalistic BDD library, following Bryant's original paper
|
|
and Andersen's lecture notes
|
|
|
|
Author: Daniel Kroening, kroening@kroening.com
|
|
|
|
\*******************************************************************/
|
|
|
|
#include <iostream>
|
|
|
|
#include <solvers/miniBDD/miniBDD.h>
|
|
|
|
void test1()
|
|
{
|
|
mini_bdd_mgrt mgr;
|
|
|
|
mini_bddt x=mgr.Var("x");
|
|
mini_bddt y=mgr.Var("y");
|
|
mini_bddt z=mgr.Var("z");
|
|
mini_bddt f=(x&y&z)|(!x&!y&z);
|
|
y.clear();
|
|
x.clear();
|
|
z.clear();
|
|
|
|
// mgr.DumpDot(std::cout);
|
|
mgr.DumpTikZ(std::cout);
|
|
}
|
|
|
|
void test2()
|
|
{
|
|
mini_bdd_mgrt mgr;
|
|
|
|
mini_bddt a=mgr.Var("a");
|
|
mini_bddt b=mgr.Var("b");
|
|
mini_bddt c=mgr.Var("c");
|
|
mini_bddt d=mgr.Var("d");
|
|
|
|
mini_bddt final=(a==b)&(c==d);
|
|
|
|
a.clear();
|
|
b.clear();
|
|
c.clear();
|
|
d.clear();
|
|
|
|
mgr.DumpTikZ(std::cout, true);
|
|
}
|
|
|
|
void test3()
|
|
{
|
|
mini_bdd_mgrt mgr;
|
|
|
|
mini_bddt final=mgr.Var("x")&mgr.Var("y");
|
|
|
|
mgr.DumpDot(std::cout);
|
|
#if 0
|
|
mgr.DumpTikZ(std::cout);
|
|
mgr.DumpTable(std::cout);
|
|
#endif
|
|
}
|
|
|
|
#include <langapi/language_util.h>
|
|
#include <langapi/mode.h>
|
|
#include <ansi-c/ansi_c_language.h>
|
|
|
|
#include <util/std_expr.h>
|
|
#include <util/symbol_table.h>
|
|
#include <util/namespace.h>
|
|
|
|
#include <solvers/prop/bdd_expr.h>
|
|
|
|
void test4()
|
|
{
|
|
register_language(new_ansi_c_language);
|
|
|
|
symbol_exprt a("a", bool_typet());
|
|
symbol_exprt b("b", bool_typet());
|
|
|
|
or_exprt o(and_exprt(a, b), not_exprt(a));
|
|
|
|
symbol_tablet symbol_table;
|
|
namespacet ns(symbol_table);
|
|
|
|
std::cout << from_expr(ns, "", o) << std::endl;
|
|
|
|
bdd_exprt t(ns);
|
|
t.from_expr(o);
|
|
|
|
std::cout << from_expr(ns, "", t.as_expr()) << std::endl;
|
|
}
|
|
|
|
int main()
|
|
{
|
|
test3();
|
|
}
|