delablexpr(3) deletes an expression.

SYNOPSYS

#include "abl101.h"
  void delablexpr( Expr )
   chain_list *Expr;

PARAMETERS

Expr
Expression to delete.

DESCRIPTION

delablexpr deletes the expression Expr.

RETURN VALUE

delablexpr returns nothing.

EXAMPLE

#include "abl101.h"
   chain_list *ExprA;
   chain_list *ExprB;
   chain_list *ExprAorB;
   ExprA = createablatom( "a" );
   ExprB = createablatom( "b" );
   ExprAorB  = createablbinexpr( ABL_OR, ExprA, ExprB );
   ...
   delablexpr( ExprAorB );
   ExprAorB = (chain_list *)0;
   ...