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Origin

This software belongs to the ALLIANCE CAD system from the CAO-VLSI team at ASIM/LIP6/UPMC laboratory.
LIP6/ASIM
University P. et M. Curie 4, place Jussieu 75252 PARIS Cedex 05 FRANCE
Fax : {33/0} 1.44.27.62.86
E-mail support : alliance-support@asim.lip6.fr

Name

notExpr - complements an expressio and eventually does a simplification

Synopsys

#include logmmm.h"
chain_list *notExpr(expr)
chain_list *expr;

Parameter

expr
expression to complement

Description

notExpr() complements expr as follows : if expr has a NOT as head operator, notExpr removes it by simplification, if it doesn't, notExpr adds an inverter before expr. You mustn't free expr because notExpr() makes a physical modification on expr so that it becomes undefined after this function call.

Example

#include mutnnn.h
/* mbk utilities */ #include logmmm.h" chain_list *expr1,*expr2; expr1 = createExpr(NOT); addQExpr(expr1,createAtom("var1"));
expr2 = notExpr(expr1);
/* expr1 becomes undefined */ displayExpr(expr2);

/* it will display
var1
*/

freeExpr(expr2);
/* don't free expr1 ! */

See Also

log(1) , abl(1) , createAtom(3) , createExpr(3) , createBinExpr(3) , addQExpr(3) , addHExpr(3) , freeExpr(3) .

Bug Report

This tool is under development at the ASIM/LIP6/UPMC laboratory, cao-vlsi research team.

We need your feedbak to improve documentation and tools. If you find bugs, please fill-in the form at http://asim.lip6.fr/alliance/support/bug-report/ Thanks for doing this.


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