Better way to sort array in descending order

Question

I have a array of int  which I have to sort by descending   Since I did not find any method to sort the array in descending order Currently I am sorting the array in descending order as below  int   array   new int     3  1  4  5  2    Array Sort lt int gt   array    Array Reverse  array      Now the question is that Is there any better way to do the same in c

User · Answer

You may specify a comparer IComparer implementation  as a parameter in Array Sort  the order of sorting actually depends on comparer  The default comparer is used in ascending sorting

User · Answer

For in-place sorting in descending order  int   numbers     1  2  3    Array Sort numbers   a  b    gt  b CompareTo a     For out-of-place sorting  no changes to input array   int   numbers     1  2  3    var sortedNumbers   numbers OrderByDescending x   gt  x  ToArray

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class Program       private static int   table       static void Main string   args                int   ints   new int     6  2  5  99  55            table   ints OrderByDescending x   gt  x  ToArray             foreach  var item in table                        Console WriteLine item

User · Answer

Depending on the sort order  you can do this        int   array   new int     3  1  4  5  2        Array Sort lt int gt  array                      new Comparison lt int gt                                i1  i2    gt  i2 CompareTo i1                                or this        int   array   new int     3  1  4  5  2        Array Sort lt int gt  array                      new Comparison lt int gt                                i1  i2    gt  i1 CompareTo i2                            i1 and i2 are just reversed

User · Answer

Use LINQ OrderByDescending method  It returns IOrderedIEnumerable lt int gt   which you can convert back to Array if you need so  Generally  List lt  gt s are more functional then Arrays   array   array OrderByDescending c   gt  c  ToArray

User · Answer

Sure  You can customize the sort     You need to give the Sort   a delegate to a comparison method which it will use to sort   Using an anonymous method   Array Sort lt int gt   array  delegate int a  int b          return b - a    Normal compare is a-b          Read more about it   Sorting arrays MSDN - Array Sort Method  T    Comparison

User · Answer

Yes  you can pass predicate to sort  That would be your reverse implementation

[c#] Better way to sort array in descending order

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