Double.IsInfinity(Double) Metode

Definisi

Ruang nama:

System

Rakitan:

System.Runtime.dll

Sumber:

Double.cs

Mengembalikan nilai yang menunjukkan apakah angka yang ditentukan mengevaluasi ke infinitas negatif atau positif.

public:
 static bool IsInfinity(double d) = System::Numerics::INumberBase<double>::IsInfinity;

public static bool IsInfinity (double d);

static member IsInfinity : double -> bool

Public Shared Function IsInfinity (d As Double) As Boolean

Parameter

d

Double

Angka floating-point presisi ganda.

Mengembalikan

Boolean

true jika d mengevaluasi ke PositiveInfinity atau NegativeInfinity; jika tidak, false.

Penerapan

IsInfinity(TSelf)

Contoh

Contoh kode berikut mengilustrasikan penggunaan IsInfinity:

// This will return S"true".
Console::WriteLine( "IsInfinity(3.0 / 0) == {0}.", Double::IsInfinity( 3.0 / zero ) ? (String^)"true" : "false" );

// This will return "true".
Console.WriteLine("IsInfinity(3.0 / 0) == {0}.", Double.IsInfinity(3.0 / 0) ? "true" : "false");

// This will return "true".
printfn $"IsInfinity(3.0 / 0) = %b{Double.IsInfinity(3. / 0.)}."

' This will return "True".
Console.Write("IsInfinity(3.0 / 0) = ")
If Double.IsPositiveInfinity(3 / 0) Then
    Console.WriteLine("True.")
Else
    Console.WriteLine("False.")
End If

Keterangan

Operasi floating-point mengembalikan PositiveInfinity atau NegativeInfinity untuk memberi sinyal kondisi luapan.

Lihat juga

• IsPositiveInfinity(Double)
• IsNegativeInfinity(Double)
• PositiveInfinity
• NegativeInfinity