UInt32.Equals メソッド

定義

名前空間:
System
アセンブリ:
mscorlib.dll, System.Runtime.dll
アセンブリ:
mscorlib.dll
アセンブリ:
System.Runtime.dll
アセンブリ:
netstandard.dll

このインスタンスが指定したオブジェクトと等しいか、 UInt32かを示す値を返します。

オーバーロード

名前 説明
Equals(Object)

このインスタンスが指定したオブジェクトと等しいかどうかを示す値を返します。
Equals(UInt32)

このインスタンスが指定した UInt32と等しいかどうかを示す値を返します。

Equals(Object)

このインスタンスが指定したオブジェクトと等しいかどうかを示す値を返します。

public:
 override bool Equals(System::Object ^ obj);
public override bool Equals(object obj);
override this.Equals : obj -> bool
Public Overrides Function Equals (obj As Object) As Boolean

パラメーター

obj
Object

このインスタンスと比較するオブジェクト。

返品

Boolean

true objがUInt32のインスタンスであり、このインスタンスの値と等しい場合は ɦ。それ以外の場合はfalse。

例

次のコード例は、 Equals メソッドを示しています。

UInt32 myVariable1 = 20;
UInt32 myVariable2 = 20;

// Display the declaring type.
Console.WriteLine("\nType of 'myVariable1' is '{0}' and"+
     " value is :{1}",myVariable1.GetType(), myVariable1);
Console.WriteLine("Type of 'myVariable2' is '{0}' and"+
     " value is :{1}",myVariable2.GetType(), myVariable2);

// Compare 'myVariable1' instance with 'myVariable2' Object.
if( myVariable1.Equals( myVariable2 ) )
   Console.WriteLine( "\nStructures 'myVariable1' and "+
         "'myVariable2' are equal");
else
   Console.WriteLine( "\nStructures 'myVariable1' and "+
         "'myVariable2' are not equal");

let myVariable1 = 20u
let myVariable2 = 20u

// Display the declaring type.
printfn $"\nType of 'myVariable1' is '{myVariable1.GetType()}' and value is :{myVariable1}"
printfn $"Type of 'myVariable2' is '{myVariable2.GetType()}' and value is :{myVariable2}"

// Compare 'myVariable1' instance with 'myVariable2' Object.
if myVariable1.Equals myVariable2 then
    printfn $"\nStructures 'myVariable1' and 'myVariable2' are equal"
else
    printfn $"\nStructures 'myVariable1' and 'myVariable2' are not equal"

Dim myVariable1 As UInt32 = UInt32.Parse(20)
Dim myVariable2 As UInt32 = UInt32.Parse(20)

' Display the declaring type.
Console.WriteLine(ControlChars.NewLine + "Type of 'myVariable1' is '{0}' and" +  _ 
         " value is :{1}", myVariable1.GetType().ToString(), myVariable1.ToString())
Console.WriteLine("Type of 'myVariable2' is '{0}' and" +  _
      " value is :{1}", myVariable2.GetType().ToString(), myVariable2.ToString())
' Compare 'myVariable1' instance with 'myVariable2' Object.
If myVariable1.Equals(myVariable2) Then
   Console.WriteLine(ControlChars.NewLine + "Structures 'myVariable1' and" +  _
      " 'myVariable2' are equal")
Else
   Console.WriteLine(ControlChars.NewLine + "Structures 'myVariable1' and" +  _
         " 'myVariable2' are not equal")
End If

注意 (呼び出し元)

コンパイラオーバーロードの解決は、2 つの Equals(UInt32) メソッドオーバーロードの動作の明らかな違いを考慮する可能性があります。 obj引数とUInt32の間の暗黙的な変換が定義されていて、引数がObjectとして型指定されていない場合、コンパイラは暗黙的な変換を実行し、Equals(UInt32) メソッドを呼び出します。 それ以外の場合は、Equals(Object) メソッドを呼び出します。obj引数がUInt32値でない場合は常にfalseを返します。 次の例は、2 つのメソッド オーバーロードの動作の違いを示しています。 Byte値とUInt16値の場合、コンパイラが自動的に拡大変換を実行し、Equals(UInt32) メソッドを呼び出すのに対し、2 番目の比較ではfalseが返されるため、最初の比較はtrueを返します。ただし、コンパイラはEquals(Object) メソッドを呼び出しているため、を返します。

using System;

public class Example
{
   static uint value = 112;
   
   public static void Main()
   {
      byte byte1= 112;
      Console.WriteLine("value = byte1: {0,16}", value.Equals(byte1));
      TestObjectForEquality(byte1);

      short short1 = 112;
      Console.WriteLine("value = short1: {0,17}", value.Equals(short1));
      TestObjectForEquality(short1);

      long long1 = 112;
      Console.WriteLine("value = long1: {0,18}", value.Equals(long1));
      TestObjectForEquality(long1);

      sbyte sbyte1 = 112;
      Console.WriteLine("value = sbyte1: {0,17}", value.Equals(sbyte1));
      TestObjectForEquality(sbyte1);

      ushort ushort1 = 112;
      Console.WriteLine("value = ushort1: {0,16}", value.Equals(ushort1));
      TestObjectForEquality(ushort1);

      ulong ulong1 = 112;
      Console.WriteLine("value = ulong1: {0,18}", value.Equals(ulong1));
      TestObjectForEquality(ulong1);

      decimal dec1 = 112m;
      Console.WriteLine("value = dec1: {0,21}", value.Equals(dec1));
      TestObjectForEquality(dec1);

      double dbl1 = 112;
      Console.WriteLine("value = dbl1: {0,20}", value.Equals(dbl1));
      TestObjectForEquality(dbl1);
   }

   private static void TestObjectForEquality(Object obj)
   {
      Console.WriteLine("{0} ({1}) = {2} ({3}): {4}\n",
                        value, value.GetType().Name,
                        obj, obj.GetType().Name,
                        value.Equals(obj));
   }
}
// The example displays the following output:
//       value = byte1:             True
//       112 (UInt32) = 112 (Byte): False
//
//       value = short1:             False
//       112 (UInt32) = 112 (Int16): False
//
//       value = long1:              False
//       112 (UInt32) = 112 (Int64): False
//
//       value = sbyte1:             False
//       112 (UInt32) = 112 (SByte): False
//
//       value = ushort1:             True
//       112 (UInt32) = 112 (UInt16): False
//
//       value = ulong1:               False
//       112 (UInt32) = 112 (UInt64): False
//
//       value = dec1:                 False
//       112 (UInt32) = 112 (Decimal): False
//
//       value = dbl1:                False
//       112 (UInt32) = 112 (Double): False

let value = 112u

let testObjectForEquality (obj: obj) =
    printfn $"{value} ({value.GetType().Name}) = {obj} ({obj.GetType().Name}): {value.Equals obj}\n"

let byte1 = 112uy
printfn $"value = byte1: {value.Equals byte1,16}"
testObjectForEquality byte1

let short1 = 112s
printfn $"value = short1: {value.Equals short1,17}"
testObjectForEquality short1

let long1 = 112L
printfn $"value = long1: {value.Equals long1,18}"
testObjectForEquality long1

let sbyte1 = 112y
printfn $"value = sbyte1: {value.Equals sbyte1,17}"
testObjectForEquality sbyte1

let ushort1 = 112us
printfn $"value = ushort1: {value.Equals ushort1,16}"
testObjectForEquality ushort1

let ulong1 = 112uL
printfn $"value = ulong1: {value.Equals ulong1,18}"
testObjectForEquality ulong1

let dec1 = 112m
printfn $"value = dec1: {value.Equals dec1,21}"
testObjectForEquality dec1

let dbl1 = 112.
printfn $"value = dbl1: {value.Equals dbl1,20}"
testObjectForEquality dbl1

// The example displays the following output:
//       value = byte1:             True
//       112 (UInt32) = 112 (Byte): False
//
//       value = short1:             False
//       112 (UInt32) = 112 (Int16): False
//
//       value = long1:              False
//       112 (UInt32) = 112 (Int64): False
//
//       value = sbyte1:             False
//       112 (UInt32) = 112 (SByte): False
//
//       value = ushort1:             True
//       112 (UInt32) = 112 (UInt16): False
//
//       value = ulong1:               False
//       112 (UInt32) = 112 (UInt64): False
//
//       value = dec1:                 False
//       112 (UInt32) = 112 (Decimal): False
//
//       value = dbl1:                False
//       112 (UInt32) = 112 (Double): False

Module Example
   Dim value As UInt32 = 112
   
   Public Sub Main()
      Dim byte1 As Byte = 112
      Console.WriteLine("value = byte1: {0,16}", value.Equals(byte1))
      TestObjectForEquality(byte1)
      
      Dim short1 As Short = 112
      Console.WriteLine("value = short1: {0,17}", value.Equals(short1))
      TestObjectForEquality(short1)

      Dim long1 As Long = 112
      Console.WriteLine("value = long1: {0,18}", value.Equals(long1))
      TestObjectForEquality(long1)

      Dim sbyte1 As SByte = 112
      Console.WriteLine("value = sbyte1: {0,17}", value.Equals(sbyte1))
      TestObjectForEquality(sbyte1)
      
      Dim ushort1 As UShort = 112
      Console.WriteLine("value = ushort1: {0,16}", value.Equals(ushort1))
      TestObjectForEquality(ushort1)

      Dim ulong1 As ULong = 112
      Console.WriteLine("value = ulong1: {0,19}", value.Equals(ulong1))
      TestObjectForEquality(ulong1)

      Dim dec1 As Decimal = 112d
      Console.WriteLine("value = dec1: {0,21}", value.Equals(dec1))
      TestObjectForEquality(dec1)

      Dim dbl1 As Double = 112
      Console.WriteLine("value = dbl1: {0,20}", value.Equals(dbl1))
      TestObjectForEquality(dbl1)
   End Sub
   
   Private Sub TestObjectForEquality(obj As Object)
      Console.WriteLine("{0} ({1}) = {2} ({3}): {4}",
                        value, value.GetType().Name,
                        obj, obj.GetType().Name,
                        value.Equals(obj))
      Console.WriteLine()
   End Sub
End Module
' The example displays the following output:
'       value = byte1:             True
'       112 (UInt32) = 112 (Byte): False
'
'       value = short1:             False
'       112 (UInt32) = 112 (Int16): False
'
'       value = long1:              False
'       112 (UInt32) = 112 (Int64): False
'
'       value = sbyte1:             False
'       112 (UInt32) = 112 (SByte): False
'
'       value = ushort1:             True
'       112 (UInt32) = 112 (UInt16): False
'
'       value = ulong1:               False
'       112 (UInt32) = 112 (UInt64): False
'
'       value = dec1:                 False
'       112 (UInt32) = 112 (Decimal): False
'
'       value = dbl1:                False
'       112 (UInt32) = 112 (Double): False

こちらもご覧ください

適用対象

Equals(UInt32)

このインスタンスが指定した UInt32と等しいかどうかを示す値を返します。

public:
 virtual bool Equals(System::UInt32 obj);
public bool Equals(uint obj);
override this.Equals : uint32 -> bool
Public Function Equals (obj As UInteger) As Boolean

パラメーター

obj
UInt32

このインスタンスと比較する値。

返品

Boolean

true objがこのインスタンスと同じ値を持つ場合は。それ以外の場合はfalse。

実装

Equals(T)

注釈

このメソッドは、System.IEquatable<T> インターフェイスを実装し、obj パラメーターをオブジェクトに変換する必要がないため、Equals(Object) メソッドよりも若干優れたパフォーマンスを発揮します。

注意 (呼び出し元)

コンパイラオーバーロードの解決は、2 つの Equals(UInt32) メソッドオーバーロードの動作の明らかな違いを考慮する可能性があります。 obj引数とUInt32の間の暗黙的な変換が定義されていて、引数がObjectとして型指定されていない場合、コンパイラは暗黙的な変換を実行し、Equals(UInt32) メソッドを呼び出します。 それ以外の場合は、Equals(Object) メソッドを呼び出します。obj引数がUInt32値でない場合は常にfalseを返します。 次の例は、2 つのメソッド オーバーロードの動作の違いを示しています。 Byte値とUInt16値の場合、コンパイラが自動的に拡大変換を実行し、Equals(UInt32) メソッドを呼び出すのに対し、2 番目の比較ではfalseが返されるため、最初の比較はtrueを返します。ただし、コンパイラはEquals(Object) メソッドを呼び出しているため、を返します。

using System;

public class Example
{
   static uint value = 112;
   
   public static void Main()
   {
      byte byte1= 112;
      Console.WriteLine("value = byte1: {0,16}", value.Equals(byte1));
      TestObjectForEquality(byte1);

      short short1 = 112;
      Console.WriteLine("value = short1: {0,17}", value.Equals(short1));
      TestObjectForEquality(short1);

      long long1 = 112;
      Console.WriteLine("value = long1: {0,18}", value.Equals(long1));
      TestObjectForEquality(long1);

      sbyte sbyte1 = 112;
      Console.WriteLine("value = sbyte1: {0,17}", value.Equals(sbyte1));
      TestObjectForEquality(sbyte1);

      ushort ushort1 = 112;
      Console.WriteLine("value = ushort1: {0,16}", value.Equals(ushort1));
      TestObjectForEquality(ushort1);

      ulong ulong1 = 112;
      Console.WriteLine("value = ulong1: {0,18}", value.Equals(ulong1));
      TestObjectForEquality(ulong1);

      decimal dec1 = 112m;
      Console.WriteLine("value = dec1: {0,21}", value.Equals(dec1));
      TestObjectForEquality(dec1);

      double dbl1 = 112;
      Console.WriteLine("value = dbl1: {0,20}", value.Equals(dbl1));
      TestObjectForEquality(dbl1);
   }

   private static void TestObjectForEquality(Object obj)
   {
      Console.WriteLine("{0} ({1}) = {2} ({3}): {4}\n",
                        value, value.GetType().Name,
                        obj, obj.GetType().Name,
                        value.Equals(obj));
   }
}
// The example displays the following output:
//       value = byte1:             True
//       112 (UInt32) = 112 (Byte): False
//
//       value = short1:             False
//       112 (UInt32) = 112 (Int16): False
//
//       value = long1:              False
//       112 (UInt32) = 112 (Int64): False
//
//       value = sbyte1:             False
//       112 (UInt32) = 112 (SByte): False
//
//       value = ushort1:             True
//       112 (UInt32) = 112 (UInt16): False
//
//       value = ulong1:               False
//       112 (UInt32) = 112 (UInt64): False
//
//       value = dec1:                 False
//       112 (UInt32) = 112 (Decimal): False
//
//       value = dbl1:                False
//       112 (UInt32) = 112 (Double): False

let value = 112u

let testObjectForEquality (obj: obj) =
    printfn $"{value} ({value.GetType().Name}) = {obj} ({obj.GetType().Name}): {value.Equals obj}\n"

let byte1 = 112uy
printfn $"value = byte1: {value.Equals byte1,16}"
testObjectForEquality byte1

let short1 = 112s
printfn $"value = short1: {value.Equals short1,17}"
testObjectForEquality short1

let long1 = 112L
printfn $"value = long1: {value.Equals long1,18}"
testObjectForEquality long1

let sbyte1 = 112y
printfn $"value = sbyte1: {value.Equals sbyte1,17}"
testObjectForEquality sbyte1

let ushort1 = 112us
printfn $"value = ushort1: {value.Equals ushort1,16}"
testObjectForEquality ushort1

let ulong1 = 112uL
printfn $"value = ulong1: {value.Equals ulong1,18}"
testObjectForEquality ulong1

let dec1 = 112m
printfn $"value = dec1: {value.Equals dec1,21}"
testObjectForEquality dec1

let dbl1 = 112.
printfn $"value = dbl1: {value.Equals dbl1,20}"
testObjectForEquality dbl1

// The example displays the following output:
//       value = byte1:             True
//       112 (UInt32) = 112 (Byte): False
//
//       value = short1:             False
//       112 (UInt32) = 112 (Int16): False
//
//       value = long1:              False
//       112 (UInt32) = 112 (Int64): False
//
//       value = sbyte1:             False
//       112 (UInt32) = 112 (SByte): False
//
//       value = ushort1:             True
//       112 (UInt32) = 112 (UInt16): False
//
//       value = ulong1:               False
//       112 (UInt32) = 112 (UInt64): False
//
//       value = dec1:                 False
//       112 (UInt32) = 112 (Decimal): False
//
//       value = dbl1:                False
//       112 (UInt32) = 112 (Double): False

Module Example
   Dim value As UInt32 = 112
   
   Public Sub Main()
      Dim byte1 As Byte = 112
      Console.WriteLine("value = byte1: {0,16}", value.Equals(byte1))
      TestObjectForEquality(byte1)
      
      Dim short1 As Short = 112
      Console.WriteLine("value = short1: {0,17}", value.Equals(short1))
      TestObjectForEquality(short1)

      Dim long1 As Long = 112
      Console.WriteLine("value = long1: {0,18}", value.Equals(long1))
      TestObjectForEquality(long1)

      Dim sbyte1 As SByte = 112
      Console.WriteLine("value = sbyte1: {0,17}", value.Equals(sbyte1))
      TestObjectForEquality(sbyte1)
      
      Dim ushort1 As UShort = 112
      Console.WriteLine("value = ushort1: {0,16}", value.Equals(ushort1))
      TestObjectForEquality(ushort1)

      Dim ulong1 As ULong = 112
      Console.WriteLine("value = ulong1: {0,19}", value.Equals(ulong1))
      TestObjectForEquality(ulong1)

      Dim dec1 As Decimal = 112d
      Console.WriteLine("value = dec1: {0,21}", value.Equals(dec1))
      TestObjectForEquality(dec1)

      Dim dbl1 As Double = 112
      Console.WriteLine("value = dbl1: {0,20}", value.Equals(dbl1))
      TestObjectForEquality(dbl1)
   End Sub
   
   Private Sub TestObjectForEquality(obj As Object)
      Console.WriteLine("{0} ({1}) = {2} ({3}): {4}",
                        value, value.GetType().Name,
                        obj, obj.GetType().Name,
                        value.Equals(obj))
      Console.WriteLine()
   End Sub
End Module
' The example displays the following output:
'       value = byte1:             True
'       112 (UInt32) = 112 (Byte): False
'
'       value = short1:             False
'       112 (UInt32) = 112 (Int16): False
'
'       value = long1:              False
'       112 (UInt32) = 112 (Int64): False
'
'       value = sbyte1:             False
'       112 (UInt32) = 112 (SByte): False
'
'       value = ushort1:             True
'       112 (UInt32) = 112 (UInt16): False
'
'       value = ulong1:               False
'       112 (UInt32) = 112 (UInt64): False
'
'       value = dec1:                 False
'       112 (UInt32) = 112 (Decimal): False
'
'       value = dbl1:                False
'       112 (UInt32) = 112 (Double): False

適用対象