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

# applybddnode(3)

applies an operator on two bdd nodes.

## NAME

applybddnode - applies an operator on two **bdd** nodes.

## SYNOPSYS

```
#include "bdd101.h"
bddnode ∗applybddnode( BddSystem, Oper, BddNode1, BddNode2 )
  bddsystem ∗BddSystem;
  long       Oper;
  bddnode   ∗BddNode1;
  bddnode   ∗BddNode2;
```

## PARAMETERS

- *BddSystem*

  The **bdd** system.

- *Oper*

  The binary operator.

- *BddNode1*

  The first **bdd** node.

- *BddNode2*

  The second **bdd** node.

## DESCRIPTION

**applybddnode** computes the boolean function *BddNode1* *Oper* *BddNode2* in the **bdd** system *BddSystem*. If a null pointer is given, the default **bdd** system is used.\

## RETURN VALUE

**applybddnode** returns a pointer to the resulting **bdd** node with its number of external reference incremented.

## ERRORS

**"bad operator xxx error !"**

The *Oper* parameter must be a valid binary operator.

## EXAMPLE

```
#include "bdd101.h"
   bddsystem  ∗BddSystem;
   bddcircuit ∗BddCircuit;
   bddnode    ∗BddNode;
   chain_list ∗Expr;
   BddSystem  = createbddsystem( 100, 1000, 100, 50000 );
   BddCircuit = createbddcircuit( "hello_world", 10, 10, BddSystem );
   addbddcircuitin( (bddcircuit ∗)0, "i0", 0, BDD_IN_MODE_FIRST );
   addbddcircuitin( (bddcircuit ∗)0, "i1", 0, BDD_IN_MODE_FIRST );
   BddNode = applybddnode( (bddsystem ∗)0,
                           ABL_AND,
                           searchbddcircuitin( (bddcircuit ∗)0, "i0" ),
                           searchbddcircuitin( (bddcircuit ∗)0, "i1" ) );
   Expr = convertbddcircuitabl( (bddcircuit ∗)0, BddNode );
   /* displays (i0 and i1) */
   viewablexpr( Expr, ABL_VIEW_VHDL );
   freeablexpr( Expr );
   destroybddsystem( (bddsystem ∗)0 );
   destroybddcircuit( (bddcircuit ∗)0 );
```

## SEE ALSO

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