createablbinexpr3

Synopsys

#include "abl101.h"
chain_list ∗createablbinexpr( Oper, Expr1, Expr2 )
  long        Oper;
  chain_list ∗Expr1;
  chain_list ∗Expr2;

Parameters

Overview

createablbinexpr creates the binary operator expression Expr1 Operator Expr2. If the operator of Expr1 and/or Expr2, and Operator are identicals createablbinexpr merges eventually the sub-expressions. The expression pointers Expr1 and Expr2 MUSTN'T be used after the call to this function.

Return value

createablbinexpr returns a pointer to the new operator expression.

Errors

"ablcreate: bad operator xx !",

Examples

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