createablbinexpr.3alc man page

createablbinexpr — creates a binary operator expression.

Synopsis

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

Parameters

Oper

The operator number.

Expr1

The first expression.

Expr2

The second expression.

Description

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 !",

Operator must be defined and must be a binary operator.

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 );

See Also

abl(1) createablatom(3), createabloper(3), createablxorbinexpr(3), createablunaryexpr(3), createablnotexpr(3), addablhexpr(3), addablqexpr(3).

Referenced By

addablhexpr.3alc(3), addablqexpr.3alc(3), createablatom.3alc(3), createablnotexpr.3alc(3), createabloper.3alc(3), createablunaryexpr.3alc(3), createablxorbinexpr.3alc(3).

October 1, 1997 ASIM/LIP6 ABL FUNCTIONS