unsafe and fixed block : Unsafe Code : Language Basics C# Source Code

unsafe and fixed block

    
 

public class MyValue
{
    public int id;
    public MyValue(int id) { this.id = id; }
}
   
class UnsafeClassApp
{
    unsafe public static void Swap(int* pi, int* pj)
    {
        int tmp = *pi;
        *pi = *pj;
        *pj = tmp;
    }
   
    static void Main(string[] args)
    {
        MyValue i = new MyValue(123);
        MyValue j = new MyValue(456);
        Console.WriteLine("Before Swap:\ti = {0}, j = {1}", i.id, j.id);
   
        unsafe
        {
             (int* pi = &i.id, pj = &j.id)
            {
                Swap(pi, pj);
            }
        }
   
        Console.WriteLine(
            "After Swap:\ti = {0}, j = {1}", i.id, j.id);
    }
}

 
    
   
  
   

Related in same category :
• int pointer variable
• Unsafe Methods
• Accessing Structure Members with a Pointer
• Supported sizeof() Types
• Fixing Managed Data in Memory
• Allocating Memory from the Stack
• Get variable address in unsafe mode
• Unsafe code
• Address and size of pointer object
• Using the unsafe keyword
• object pointer
• Use unsafe method to clone array
• mark method as unsafe
• Use unsage code to swap two integers