SYNOPSYS

#include "abl101.h"
chain_list *getablexprmin( Function, Expr )
  int       (*Function)();
  chain_list *Expr;

PARAMETERS

Function

Cost function.

Expr

Expression to scan.

DESCRIPTION

getablexprmin applies the cost function Function to all operands of Expr.

RETURN VALUE

getablexprmin returns the operand for which unction gives the minimum cost. The expression pointer returned MUSTN'T be modified after the call to this function.

EXAMPLE

#include "abl101.h"
    int MapFunction( MapExpr )
      chain_list *MapExpr;
    {
      return( getabldepthexpr( MapExpr ) );
    }
    ...
    chain_list *Expr;
    chain_list *Expr1;
    Expr = createablbinexpr( ABL_AND, 
                             createablatom( "a" ),
                             createablatom( "b" ) );
   Expr1 = getablexprmin( MapFunction, Expr );