SIMPLE SOLUTIONS

RESTRICTBDDNODE(3) - Linux man page online | Library functions

Substitutes a variable by a zero or one, in a bdd.

Chapter
October 1, 1997
RESTRICTBDDNODE(3) BDD FUNCTIONS RESTRICTBDDNODE(3)

NAME

restrictbddnode - substitutes a variable by a zero or one, in a bdd.

SYNOPSYS

#include "bdd101.h" bddnode ∗restrictbddnode( BddSystem, BddNode, Variable, BddSubst ) bddsystem ∗BddSystem; bddnode ∗BddNode; bddvar Variable; bddnode ∗BddSubst;

PARAMETERS

BddSystem The bdd system. BddNode The bdd node. Variable The variable to find. BddSubst The bdd to substitute with.

DESCRIPTION

restrictbddnode substitutes all the occurency of the variable Variable in the bdd node BddNode by the bdd node BddSubst, in the bdd system BddSystem. If a null pointer is given, the default bdd system is used. The BddSubst must be a the node BddSystem->ONE or BddSystem->ZERO.

RETURN VALUE

restrictbddnode returns the resulting bdd node.

ERRORS

"variable xxx out of range, error !" The Variable parameter must be less or equal to the BddSystem->NUMBER_VAR field. "index xxx out of range, error !" The BddSubst parameter must have its index less than BDD_INDEX_MIN.

EXAMPLE

#include "bdd101.h" bddsystem ∗BddSystem; bddcircuit ∗BddCircuit; bddnode ∗BddVariable; bddnode ∗BddNode; bddnode ∗BddSubst; chain_list ∗Expr; bddvar Variable; BddSystem = createbddsystem( 100, 1000, 100, 50000 ); BddCircuit = createbddcircuit( "hello_world", 10, 10, BddSystem ); Expr = createablbinexpr( ABL_OR, createablatom( "i0" ), createablatom( "i1" ) ); BddNode = addbddcircuitabl( BddCircuit, Expr ); freeablexpr( Expr ); BddSubst = BddSystem->ONE; BddVariable = searchbddcircuitin( (bddcircuit ∗)0, "i0" ); Variable = getbddvarbyindex( (bddsystem ∗)0, BddVariable->INDEX ); BddNode = restrictbddnode( (bddsystem ∗)0, BddNode, Variable, BddSubst ); Expr = convertbddcircuitabl( BddCircuit, BddNode ); /* displays '1' */ viewablexpr( Expr, ABL_VIEW_VHDL ); freeablexpr( Expr ); destroybddsystem( (bddsystem ∗)0 ); destroybddcircuit( (bddcircuit ∗)0 );

SEE ALSO

bdd(1)
ASIM/LIP6 October 1, 1997 RESTRICTBDDNODE(3)
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refer to bdd(1)
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