---
name: "simpbddnodedcoff"
section: "3"
platform: "linux"
package: "alliance"
version: "5.1.1-3"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/simpbddnodedcoff"
---

# simpbddnodedcoff(3)

simplifies a bdd with don't cares on its off-set part.

## NAME

simpbddnodedcoff - simplifies a **bdd** with don't cares on its off-set part.

## SYNOPSYS

```
#include "bdd101.h"
bddnode ∗simpbddnodedcoff( BddSystem, BddOff, BddDc )
  bddsystem ∗BddSystem;
  bddnode   ∗BddOff;
  bddnode   ∗BddDc;
```

## PARAMETERS

- *BddSystem*

  The **bdd** system.

- *BddOff*

  The first **bdd** node.

- *BddDc*

  The second **bdd** node.

## DESCRIPTION

**simpbddnodedcoff** simplifies the **bdd** node *BddOff* with *BddDc*, in the **bdd** system *BddSystem*. If a null pointer is given, the default **bdd** system is used. The **bdd** node *BddDc* must be included imperatively in the off-set part of the **bdd** node *BddOff*.\

## RETURN VALUE

**simpbddnodedcoff** returns the simplified **bdd** node.

## EXAMPLE

```
#include "bdd101.h"
   bddsystem  ∗BddSystem;
   bddcircuit ∗BddCircuit;
   bddnode    ∗BddOff;
   bddnode    ∗BddDc;
   bddnode    ∗BddNode;
   chain_list ∗Expr;
   BddSystem  = createbddsystem( 100, 1000, 100, 50000 );
   BddCircuit = createbddcircuit( "hello_world", 10, 10, BddSystem );
   Expr = createablbinexpr( ABL_OR,
                            createablatom( "i0" ),
                            createablatom( "i1" ) );
   BddOff = addbddcircuitabl( BddCircuit, Expr );
   freeablexpr( Expr );
   Expr = createablbinexpr( ABL_NOR,
                            createablatom( "i0" ),
                            createablatom( "i1" ) );
   BddDc = addbddcircuitabl( BddCircuit, Expr );
   freeablexpr( Expr );
   BddNode = simpbddnodedcoff( (bddsystem ∗)0, BddOff, BddDc );
   Expr = convertbddcircuitabl( BddCircuit, BddNode );
   /* displays '1' */
   viewablexpr( Expr, ABL_VIEW_VHDL );
   freeablexpr( Expr );
   destroybddsystem( (bddsystem ∗)0 );
   destroybddcircuit( (bddcircuit ∗)0 );
```

## SEE ALSO

[**bdd**(1)](/bdd/1.md)