Index pointer : Pointer « unsafe « C# / CSharp Tutorial

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C# / CSharp Tutorial » unsafe » Pointer

36.3.7.Index pointer

using System; 

 

class MainClass { 

  unsafe public static void Main() { 

    int[] nums = new int[10]; 

 

    

    Console.WriteLine("Index pointer like array."); 

    fixed (int* p = nums) { 

      for(int i=0; i < 10; i++)  

        p[i] = i; // index pointer like array 

 

      for(int i=0; i < 10; i++)  

        Console.WriteLine("p[{0}]: {1} ", i, p[i]); 

    } 

 

  } 

}

Index pointer like array.
p[0]: 0
p[1]: 1
p[2]: 2
p[3]: 3
p[4]: 4
p[5]: 5
p[6]: 6
p[7]: 7
p[8]: 8
p[9]: 9

36.3.Pointer
	36.3.1.	Declaring a Pointer
	36.3.2.	IntPtrs and unsafe bit-twiddling
	36.3.3.	The & is a unary operator that returns the memory address of its operand
	36.3.4.	Use fixed to put address of value into a pointer
	36.3.5.	Demonstrate the effects of pointer arithmethic
	36.3.6.	An array name with an index yields a pointer to the start of the array
	36.3.7.	Index pointer
	36.3.8.	Pointer arithmetic
	36.3.9.	Get a pointer to the start of a string and display the contents of string via pointer
	36.3.10.	Pointer of a pointer
	36.3.11.	Assign value of myInt using pointer
	36.3.12.	Safe Swap
	36.3.13.	Unsafe swap
	36.3.14.	C# Pointer Operators
	36.3.15.	Modifying an Immutable String with Pointer
	36.3.16.	Pointer Arithmetic

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