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

# addbddcircuitabl(3)

converts an abl expression to a bdd node.

## NAME

addbddcircuitabl - converts an **abl** expression to a **bdd** node.

## SYNOPSYS

```
#include "bdd101.h"
bddnode ∗addbddcircuitabl( BddCircuit, Expr )
  bddcircuit ∗BddCircuit;
  chain_list ∗Expr;
```

## PARAMETERS

- *BddCircuit*

  The **bdd** circuit.

- *Expr*

  The expression to convert.

## DESCRIPTION

**addbddcircuitabl** converts the **abl** expression *Expr* to a **bdd** node. The *BddCircuit* is used to translate the atomic expressions into variable nodes. If a null pointer is given, the default **bdd** circuit is used. If an atomic expression doesn't appear in the *BddCircuit*  input names hash table or output names hash table, then *addbddcircuitabl* adds a new input by calling the function  *addbddcircuitin* with the BDD\_IN\_MODE\_LAST mode.\

## RETURN VALUE

**addbddcircuitabl** returns a pointer to the **bdd** node translated.

## ERRORS

**"bad operator xxx error !"**

The *Expr* parameter must be a well defined **abl** expression.

## 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 );
   Expr = createablbinexpr( ABL_AND,
                            createablatom( "i0" ),
                            createablatom( "i1" ) );
   BddNode = addbddcircuitabl( BddCircuit, Expr );
   freeablexpr( Expr );
   Expr = convertbddcircuitabl( BddCircuit, 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), [**abl**(1)](/abl/1.md), **[convertbddcircuitabl(3)](/convertbddcircuitabl/3.md).**