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

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 );