bionic (3) polarablexpr.3.gz

NAME

       polarablexpr - moves inverters to the atomic level.

SYNOPSYS

       #include "abl101.h"
       chain_list ∗polarablexpr( Expr, Polar )
         chain_list ∗Expr;
         int         Polar;

PARAMETERS

       Expr                Expression to modify.

       Polar               Expression polarity.

DESCRIPTION

       polarablexpr  modifies  Expr  by moving down the inverters to the atomic level.  polarablexpr applies the
       Morgan's laws. If Polar is equal to ABL_POLAR_NEGATIVE the function returns the modified expression after
       having complemented it.  The expression pointer Expr MUSTN'T be used after the call to this function.

RETURN VALUE

       polarablexpr returns the modified expression.

EXAMPLE

       #include "abl101.h"
         chain_list ∗Expr1;
         chain_list ∗Expr2;
         Expr1 = createabloper( ABL_NOT );
         Expr2 = createabloper( ABL_NOT );
         addablhexpr( Expr1, createablatom( "a" ) );
         addablhexpr( Expr2, Expr1 );
         Expr1 = polarablexpr( Expr2, ABL_POLAR_POSITIVE );
         /* displays  a */
         viewablexpr( Expr1, ABL_VIEW_VHDL );

SEE ALSO

       abl(1)