The & is a unary operator that returns the memory address of its operand : Pointer « unsafe « C# / CSharp Tutorial

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C# / CSharp Tutorial » unsafe » Pointer 
36.3.3.The & is a unary operator that returns the memory address of its operand
using System;

class MainClass
{
  static unsafe void print( char* p, int len )
  {
    for ( int i = 0; i < len; i++, p++ )
    {
      Console.WriteLine( *p );
    }
  }

  [STAThread]
  static unsafe void Main(string[] args)
  {
    string s = "unsafe code";
    fixed ( char* p = &( s.ToCharArray()[ 0 ] ) )
    {
      print ( p, s.Length );
    }
  }
}
 
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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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