Math.BigMul Method

Reference

Definition

Namespace:: System

Assemblies:: netstandard.dll, System.Runtime.dll

Assembly:: System.Runtime.Extensions.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Overloads

BigMul(UInt64, UInt64, UInt64)	Produces the full product of two unsigned 64-bit numbers.
BigMul(Int64, Int64, Int64)	Produces the full product of two 64-bit numbers.
BigMul(UInt64, UInt64)	Produces the full product of two unsigned 64-bit numbers.
BigMul(Int32, Int32)	Produces the full product of two 32-bit numbers.
BigMul(Int64, Int64)	Produces the full product of two 64-bit numbers.
BigMul(UInt32, UInt32)	Produces the full product of two unsigned 32-bit numbers.

BigMul(UInt64, UInt64, UInt64)

Source:: Math.cs

Source:: Math.cs

Source:: Math.cs

Important

This API is not CLS-compliant.

Produces the full product of two unsigned 64-bit numbers.

public:
 static System::UInt64 BigMul(System::UInt64 a, System::UInt64 b, [Runtime::InteropServices::Out] System::UInt64 % low);

[System.CLSCompliant(false)]
public static ulong BigMul(ulong a, ulong b, out ulong low);

[<System.CLSCompliant(false)>]
static member BigMul : uint64 * uint64 * uint64 -> uint64

Public Shared Function BigMul (a As ULong, b As ULong, ByRef low As ULong) As ULong

Parameters

a: UInt64

The first number to multiply.

b: UInt64

The second number to multiply.

low: UInt64

When this method returns, contains the low 64-bit of the product of the specified numbers.

Returns

UInt64

The high 64-bit of the product of the specified numbers.

Attributes: CLSCompliantAttribute

Applies to

.NET 10 and other versions

Product	Versions
.NET	5, 6, 7, 8, 9, 10

BigMul(Int64, Int64, Int64)

Source:: Math.cs

Source:: Math.cs

Source:: Math.cs

Produces the full product of two 64-bit numbers.

public:
 static long BigMul(long a, long b, [Runtime::InteropServices::Out] long % low);

public static long BigMul(long a, long b, out long low);

static member BigMul : int64 * int64 * int64 -> int64

Public Shared Function BigMul (a As Long, b As Long, ByRef low As Long) As Long

Parameters

a: Int64

The first number to multiply.

b: Int64

The second number to multiply.

low: Int64

When this method returns, contains the low 64-bit of the product of the specified numbers.

Returns

Int64

The high 64-bit of the product of the specified numbers.

Applies to

.NET 10 and other versions

Product	Versions
.NET	5, 6, 7, 8, 9, 10

BigMul(UInt64, UInt64)

Important

This API is not CLS-compliant.

Produces the full product of two unsigned 64-bit numbers.

public:
 static UInt128 BigMul(System::UInt64 a, System::UInt64 b);

[System.CLSCompliant(false)]
public static UInt128 BigMul(ulong a, ulong b);

[<System.CLSCompliant(false)>]
static member BigMul : uint64 * uint64 -> UInt128

Public Shared Function BigMul (a As ULong, b As ULong) As UInt128

Parameters

a: UInt64

The first number to multiply.

b: UInt64

The second number to multiply.

Returns

UInt128

The full product of the specified numbers.

Attributes: CLSCompliantAttribute

Applies to

.NET 10 and .NET 9

Product	Versions
.NET	9, 10

BigMul(Int32, Int32)

Source:: Math.cs

Source:: Math.cs

Source:: Math.cs

Produces the full product of two 32-bit numbers.

public:
 static long BigMul(int a, int b);

public static long BigMul(int a, int b);

static member BigMul : int * int -> int64

Public Shared Function BigMul (a As Integer, b As Integer) As Long

Parameters

a: Int32

The first number to multiply.

b: Int32

The second number to multiply.

Returns

Int64

The number containing the product of the specified numbers.

Examples

The following example demonstrates the use of the BigMul method to calculate the product of two integer values.

// This example demonstrates Math.BigMul()
using namespace System;
int main()
{
   int int1 = Int32::MaxValue;
   int int2 = Int32::MaxValue;
   Int64 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
*/

// 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
*/

// This example demonstrates Math.BigMul()
open System

let int1 = Int32.MaxValue
let int2 = Int32.MaxValue

let longResult = Math.BigMul(int1, int2)
printfn "Calculate the product of two Int32 values:"
printfn $"{int1} * {int2} = {longResult}"

// This example produces the following results:
// Calculate the product of two Int32 values:
// 2147483647 * 2147483647 = 4611686014132420609

' This example demonstrates Math.BigMul()
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
End Class
'
'This example produces the following results:
'Calculate the product of two Int32 values:
'2147483647 * 2147483647 = 4611686014132420609
'

Applies to

.NET 10 and other versions

Product	Versions
.NET	Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	2.0, 2.1

BigMul(Int64, Int64)

Produces the full product of two 64-bit numbers.

public:
 static Int128 BigMul(long a, long b);

public static Int128 BigMul(long a, long b);

static member BigMul : int64 * int64 -> Int128

Public Shared Function BigMul (a As Long, b As Long) As Int128

Parameters

a: Int64

The first number to multiply.

b: Int64

The second number to multiply.

Returns

Int128

The full product of the specified numbers.

Applies to

.NET 10 and .NET 9

Product	Versions
.NET	9, 10

BigMul(UInt32, UInt32)

Important

This API is not CLS-compliant.

Produces the full product of two unsigned 32-bit numbers.

public:
 static System::UInt64 BigMul(System::UInt32 a, System::UInt32 b);

[System.CLSCompliant(false)]
public static ulong BigMul(uint a, uint b);

[<System.CLSCompliant(false)>]
static member BigMul : uint32 * uint32 -> uint64

Public Shared Function BigMul (a As UInteger, b As UInteger) As ULong

Parameters

a: UInt32

The first number to multiply.

b: UInt32

The second number to multiply.

Returns

UInt64

The number containing the product of the specified numbers.

Attributes: CLSCompliantAttribute

Applies to

.NET 10 and .NET 9

Product	Versions
.NET	9, 10

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Math.BigMul Method

Definition

Overloads

BigMul(UInt64, UInt64, UInt64)

Parameters

Returns

Applies to

BigMul(Int64, Int64, Int64)

Parameters

Returns

Applies to

BigMul(UInt64, UInt64)

Parameters

Returns

Applies to

BigMul(Int32, Int32)

Parameters

Returns

Examples

Applies to

BigMul(Int64, Int64)

Parameters

Returns

Applies to

BigMul(UInt32, UInt32)

Parameters

Returns

Applies to

Additional resources