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# BigInteger Constructor (Int32)

Visual Studio 2010

Initializes a new instance of the BigInteger structure using a 32-bit signed integer value.

Namespace:  System.Numerics
Assembly:  System.Numerics (in System.Numerics.dll)

## Syntax

```'Declaration
Public Sub New ( _
value As Integer _
)
```

#### Parameters

value
Type: System.Int32
A 32-bit signed integer.

## Remarks

There is no loss of precision when instantiating a BigInteger object by using this constructor.

The BigInteger value that results from calling this constructor is identical to the value that results from assigning an Int32 value to a BigInteger.

The BigInteger structure does not include constructors with a parameter of type Byte, Int16, SByte, or UInt16. However, the Int32 type supports the implicit conversion of 8-bit and 16-bit signed and unsigned integers to signed 32-bit integers. As a result, this constructor is called if value is any one of these four integral types.

## Examples

The following example calls the BigInteger(Int32) constructor to instantiate BigInteger values from an array of 32-bit integers. It also uses implicit conversion to assign each 32-bit integer value to a BigInteger variable. It then compares the two values to establish that the resulting BigInteger values are the same.

```
Dim integers() As Integer = { Int32.MinValue, -10534, -189, 0, 17, 113439,
Int32.MaxValue }
Dim constructed, assigned As BigInteger

For Each number As Integer In integers
constructed = New BigInteger(number)
assigned = number
Console.WriteLine("{0} = {1}: {2}", constructed, assigned,
constructed.Equals(assigned))
Next
' The example displays the following output:
'       -2147483648 = -2147483648: True
'       -10534 = -10534: True
'       -189 = -189: True
'       0 = 0: True
'       17 = 17: True
'       113439 = 113439: True
'       2147483647 = 2147483647: True

```

Supported in: 4

Supported in: 4

## Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.