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

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static FreeRefFunction` | `instance`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `Bin2Dec()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `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

    - #### Bin2Dec

          public Bin2Dec()

  - ### 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).

Copyright 2020 The Apache Software Foundation or its licensors, as applicable.