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## org.apache.poi.ss.formula.functions
Class Dec2Bin

    java.lang.Object
      org.apache.poi.ss.formula.functions.Dec2Bin

All Implemented Interfaces:
  FreeRefFunction, Function, Function1Arg, Function2Arg

    public class Dec2Bin

extends java.lang.Object
implements FreeRefFunction

Implementation for Excel Bin2Dec() function.

Syntax:
Bin2Dec (number,[places] )

Converts a decimal number to binary.

The DEC2BIN function syntax has the following arguments:

- Number Required. The decimal integer you want to convert. If number is negative, valid place values are ignored and DEC2BIN returns a 10-character (10-bit) binary number in which the most significant bit is the sign bit. The remaining 9 bits are magnitude bits. Negative numbers are represented using two's-complement notation.
- Places Optional. The number of characters to use. If places is omitted, DEC2BIN uses the minimum number of characters necessary. Places is useful for padding the return value with leading 0s (zeros).

Remarks

- If number < -512 or if number > 511, DEC2BIN returns the #NUM! error value.
- If number is nonnumeric, DEC2BIN returns the #VALUE! error value.
- If DEC2BIN requires more than places characters, it returns the #NUM! error value.
- If places is not an integer, it is truncated.
- If places is nonnumeric, DEC2BIN returns the #VALUE! error value.
- If places is zero or negative, DEC2BIN returns the #NUM! error value.

Author:
  cedric dot walter @ gmail dot com

Field Summary
`static FreeRefFunction` | `instance`

Constructor Summary
`Dec2Bin()`

Method Summary
`ValueEval` | `evaluate(int srcRowIndex, int srcColumnIndex, ValueEval numberVE)` see `Function.evaluate(ValueEval[], int, int)`
`ValueEval` | `evaluate(int srcRowIndex, int srcColumnIndex, ValueEval numberVE, ValueEval placesVE)` see `Function.evaluate(ValueEval[], int, int)`
`ValueEval` | `evaluate(ValueEval[] args, int srcRowIndex, int srcColumnIndex)`
`ValueEval` | `evaluate(ValueEval[] args, OperationEvaluationContext ec)`

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

### Dec2Bin

    public Dec2Bin()

Method Detail

### evaluate

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

  Description copied from interface: `Function2Arg`
  see `Function.evaluate(ValueEval[], int, int)`

  Specified by:
    `evaluate` in interface `Function2Arg`

### 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).

### evaluate

    public final ValueEval evaluate(ValueEval[] args,
                                    int srcRowIndex,
                                    int srcColumnIndex)

  Specified by:
    `evaluate` in interface `Function`
  Parameters:
    `args` - the evaluated function arguments. Empty values are represented with `BlankEval` or `MissingArgEval`, never `null`.
    `srcRowIndex` - row index of the cell containing the formula under evaluation
    `srcColumnIndex` - column index of the cell containing the formula under evaluation
  Returns:
    The evaluated result, possibly an `ErrorEval`, never `null`. Note - Excel uses the error code #NUM! instead of IEEE NaN, so when numeric functions evaluate to `Double.NaN` be sure to translate the result to `ErrorEval.NUM_ERROR`.

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Copyright 2017 The Apache Software Foundation or its licensors, as applicable.