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C# Tuple<T1>.IStructuralEquatable.Equals方法代码示例

本文整理汇总了C#中System.Tuple<T1>.IStructuralEquatable.Equals方法的典型用法代码示例。如果您正苦于以下问题:C# Tuple<T1>.IStructuralEquatable.Equals方法的具体用法?C# Tuple<T1>.IStructuralEquatable.Equals怎么用?C# Tuple<T1>.IStructuralEquatable.Equals使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。


在下文中一共展示了Tuple<T1>.IStructuralEquatable.Equals方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: Equals

//引入命名空间
using System;
using System.Collections;

public class Tuple1Comparer : IEqualityComparer
{
   new public bool Equals(object x, object y)
   {
      // Check if x is a floating point type. If x is, then y is.
      if (x is double | x is float)
      {   
         // Convert to Double values.
         double dblX = (double) x;
         double dblY = (double) y;
         if (Double.IsNaN(dblX) | Double.IsInfinity(dblX) |
             Double.IsNaN(dblY) | Double.IsInfinity(dblY)) 
            return dblX.Equals(dblY);   
         else
            return Math.Abs(dblX - dblY) <= dblX * .0001;
      }
      else
      {
         return x.Equals(y);
      }
   }
   
   public int GetHashCode(object obj)
   {
      return obj.GetHashCode();
   }
}

public class Example
{
   public static void Main()
   {
      var doubleTuple1 = Tuple.Create(12.3455);

      var doubleTuple2 = Tuple.Create(16.8912);
      var doubleTuple3 = Tuple.Create(12.3449599);

      // Compare first tuple with a Tuple<double> with a different value.
      TestEquality(doubleTuple1, doubleTuple2);
      //Compare first tuple with a Tuple<double> with the same value.
      TestEquality(doubleTuple1, doubleTuple3);
   }

   private static void TestEquality(Tuple<double> tuple, object obj)
   {
      Console.WriteLine("{0} = {1}: {2}", tuple.ToString(),
                                             obj.ToString(),
                                             ((IStructuralEquatable)tuple).Equals(obj, new Tuple1Comparer()));
   }
}
开发者ID:.NET开发者,项目名称:System,代码行数:54,代码来源:Tuple.IStructuralEquatable.Equals

输出:

(12.3455) = (16.8912): False
(12.3455) = (12.3449599): True


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