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Math.BigMul Method

.NET Framework 1.1
Note: This namespace, class, or member is supported only in version 1.1 of the .NET Framework.

Produces the full product of two 32-bit numbers.

```[Visual Basic]
Public Shared Function BigMul( _
ByVal a As Integer, _
ByVal b As Integer _
) As Long
[C#]
public static long BigMul(
int a,
int b
);
[C++]
public: static __int64 BigMul(
int a,
int b
);
[JScript]
public static function BigMul(
a : int,
b : int
) : long;```

Parameters

a
The first Int32 to multiply.
b
The second Int32 to multiply.

Return Value

The Int64 containing the product of the specified numbers.

Example

```[Visual Basic]
' This example demonstrates Math.BigMul()
Imports System

Class Sample
Public Shared Sub Main()
Dim int1 As Integer = Int32.MaxValue
Dim int2 As Integer = Int32.MaxValue
Dim longResult As Long
'
longResult = Math.BigMul(int1, int2)
Console.WriteLine("Calculate the product of two Int32 values:")
Console.WriteLine("{0} * {1} = {2}", int1, int2, longResult)
End Sub 'Main
End Class 'Sample
'
'This example produces the following results:
'Calculate the product of two Int32 values:
'2147483647 * 2147483647 = 4611686014132420609
'

[C#]
// This example demonstrates Math.BigMul()
using System;

class Sample
{
public static void Main()
{
int int1 = Int32.MaxValue;
int int2 = Int32.MaxValue;
long longResult;
//
longResult = Math.BigMul(int1, int2);
Console.WriteLine("Calculate the product of two Int32 values:");
Console.WriteLine("{0} * {1} = {2}", int1, int2, longResult);
}
}
/*
This example produces the following results:
Calculate the product of two Int32 values:
2147483647 * 2147483647 = 4611686014132420609
*/

[C++]
// This example demonstrates Math.BigMul()
#using <mscorlib.dll>
using namespace System;

int main()
{
int int1 = Int32::MaxValue;
int int2 = Int32::MaxValue;
Int64 longResult;
//
longResult = Math::BigMul(int1, int2);
Console::WriteLine(S"Calculate the product of two Int32 values:");
Console::WriteLine(S"{0} * {1} = {2}", __box(int1), __box(int2), __box(longResult));
}
/*
This example produces the following results:
Calculate the product of two Int32 values:
2147483647 * 2147483647 = 4611686014132420609
*/
```

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button in the upper-left corner of the page.

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Common Language Infrastructure (CLI) Standard