Safe Swap : Pointer : Unsafe C# Examples

Safe Swap

    
using  System;
using  System.Globalization;

public  class  MainClass{

    public  static  void  SafeSwap(ref  int  i,  ref  int  j)
    {
        int  temp  =  i;
        i  =  j;
        j  =  temp;
    }

    static  void  Main(string[]  args)
    {
        int  i  =  10,  j  =  20;
        
        Console.WriteLine("Values  before  safe  swap:  i  =  {0},  j  =  {1}",  i,  j);
        SafeSwap(ref  i,  ref  j);
        Console.WriteLine("Values  after  safe  swap:  i  =  {0},  j  =  {1}",  i,  j);
    }
}
    
   
  
   

Values before safe swap: i = 10, j = 20
Values after safe swap: i = 20, j = 10

Related in same category :
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• IntPtrs and unsafe bit-twiddling
• The & is a unary operator that returns the memory address of its operand
• Use fixed to put address of value into a pointer
• Demonstrate the effects of pointer arithmethic
• An array name with an index yields a pointer to the start of the array
• Index pointer
• Pointer arithmetic
• Get a pointer to the start of a string and display the contents of string via pointer
• Pointer of a pointer
• Assign value of myInt using pointer
• Unsafe swap