org.apache.poi.ss.formula.functions
Class Bin2Dec

java.lang.Object
  org.apache.poi.ss.formula.functions.Fixed1ArgFunction
      org.apache.poi.ss.formula.functions.Bin2Dec

All Implemented Interfaces:

FreeRefFunction, Function, Function1Arg

public class Bin2Dec
extends Fixed1ArgFunction
implements FreeRefFunction

Implementation for Excel Bin2Dec() function.

Syntax:
Bin2Dec (number)

Converts a binary number to decimal.

Number is the binary number you want to convert. Number cannot contain more than 10 characters (10 bits). The most significant bit of number is the sign bit. The remaining 9 bits are magnitude bits. Negative numbers are represented using two's-complement notation.

Remark If number is not a valid binary number, or if number contains more than 10 characters (10 bits), BIN2DEC returns the #NUM! error value.

Author:

cedric dot walter @ gmail dot com

instance

public static final FreeRefFunction instance

Bin2Dec

public Bin2Dec()

evaluate

public ValueEval evaluate(int srcRowIndex,
                          int srcColumnIndex,
                          ValueEval numberVE)

Description copied from interface: Function1Arg

see Function.evaluate(ValueEval[], int, int)

Specified by:

evaluate in interface Function1Arg

evaluate

public ValueEval evaluate(ValueEval[] args,
                          OperationEvaluationContext ec)

Specified by:

evaluate in interface FreeRefFunction

Parameters:

args - the pre-evaluated arguments for this function. args is never null, nor are any of its elements.

ec - primarily used to identify the source cell containing the formula being evaluated. may also be used to dynamically create reference evals.

Returns:

never null. Possibly an instance of ErrorEval in the case of a specified Excel error (Exceptions are never thrown to represent Excel errors).