return Tuple literal from a method - CSharp Language Basics

CSharp examples for Language Basics:Tuple

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Description

return Tuple literal from a method

Demo Code

using System;//from w  w  w .  j  a va  2  s.  c om
using System.Collections.Generic;
using System.Linq;
class MinMax3
{
   static void Main()
   {
      Random rng = new Random();
      var numbers = Enumerable.Range(0, 100).Select(_ => rng.Next(1000));
      var minMax = MinMax(numbers);
      Console.WriteLine($"Minimum: {minMax.min}");
      Console.WriteLine($"Maximum: {minMax.max}");
   }
   static (int min, int max) MinMax(IEnumerable<int> source)
   {
      using (var iterator = source.GetEnumerator())
      {
         if (!iterator.MoveNext())
         {
            throw new InvalidOperationException("Cannot find min/max of an empty sequence");
         }
         var result = (min: iterator.Current, max: iterator.Current);
         while (iterator.MoveNext())
         {
            result = (Math.Min(result.min, iterator.Current),
            Math.Max(result.max, iterator.Current));
         }
         return result;
      }
   }
}

Result


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