addablhexpr(3) adds a new argument in head of an expression.

SYNOPSYS

#include "abl101.h"
void addablhexpr( Expr1, Expr2 )
  chain_list *Expr1;
  chain_list *Expr2;

PARAMETERS

Expr1
First expression.
Expr2
Second expression.

DESCRIPTION

addablhexpr adds Expr2 in head of Expr1. The expression pointers Expr2 MUSTN'T be used after the call to this function

RETURN VALUE

addablhexpr returns nothing.

EXAMPLE

#include "abl101.h"
  chain_list *Expr;
  Expr = createabloper( ABL_OR );
  addablhexpr( Expr, createablatom( "a" ) );
  addablhexpr( Expr, createablatom( "b" ) );
  /* displays (a or b) */
  viewablexpr( Expr, ABL_VIEW_VHDL );