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

# viewbddnode(3)

displays a bdd node.

## NAME

viewbddnode - displays a **bdd** node.

## SYNOPSYS

```
#include "bdd101.h"
void viewbddnode( BddSystem, BddNode )
  bddsystem ∗BddSystem;
  bddnode   ∗BddNode;
```

## PARAMETERS

- *BddSystem*

  The **bdd** system.

- *BddNode*

  The **bdd** node to display.

## DESCRIPTION

**viewbddnode** displays the node *BddNode*, in the **bdd** system *BddSystem*. If a null pointer is given, the default **bdd** system is used.\

## RETURN VALUE

**viewbddnode** returns nothing.

## 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 );
   /* displays Node VAR: 0  INDEX: 2  MARK: 0  REF_EXT: 1  REF_INT: 0 */
   viewbddnode( (bddsystem ∗)0, BddNode );
   destroybddsystem( (bddsystem ∗)0 );
   destroybddcircuit( (bddcircuit ∗)0 );
```

## SEE ALSO

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