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org.apache.poi.ss.formula.functions
Class Hex2Dec

java.lang.Object
  extended by org.apache.poi.ss.formula.functions.Fixed1ArgFunction
      extended by org.apache.poi.ss.formula.functions.Hex2Dec
All Implemented Interfaces:
FreeRefFunction, Function, Function1Arg
public class Hex2Dec
extends Fixed1ArgFunction
implements FreeRefFunction

Implementation for Excel HEX2DEC() function.

Syntax:
HEX2DEC (number)

Converts a hexadecimal number to decimal.

Number is the hexadecimal number you want to convert. Number cannot contain more than 10 characters (40 bits). The most significant bit of number is the sign bit. The remaining 39 bits are magnitude bits. Negative numbers are represented using two's-complement notation. Remark If number is not a valid hexadecimal number, HEX2DEC returns the #NUM! error value.

Field Summary
static FreeRefFunction instance
           
 
Constructor Summary
Hex2Dec()
           
 
Method Summary
 ValueEval evaluate(int srcRowIndex, int srcColumnIndex, ValueEval numberVE)
          see Function.evaluate(ValueEval[], int, int)
 ValueEval evaluate(ValueEval[] args, OperationEvaluationContext ec)
           
 
Methods inherited from class org.apache.poi.ss.formula.functions.Fixed1ArgFunction
evaluate
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

instance

public static final FreeRefFunction instance
Constructor Detail

Hex2Dec

public Hex2Dec()
Method Detail

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).
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