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Use the pointer indirection expression to obtain the variable at the ___location pointed to by a pointer. The expression takes the following form:
*unary expression
Parameters
- *
The unary indirection operator.
- unary expression
A pointer-type expression.
Remarks
You cannot use the unary indirection operator on an expression of any type other than the pointer type. Also, you cannot apply it to a void pointer.
When you apply the indirection operator to a null pointer, the result depends on the implementation.
Example
In the following example, a variable of the type char is accessed using pointers of different types.
// compile with: /unsafe
unsafe class TestClass
{
static void Main()
{
char theChar = 'Z';
char* pChar = &theChar;
void* pVoid = pChar;
int* pInt = (int*)pVoid;
System.Console.WriteLine("Value of theChar = {0}", theChar);
System.Console.WriteLine("Address of theChar = {0:X2}",(int)pChar);
System.Console.WriteLine("Value of pChar = {0}", *pChar);
System.Console.WriteLine("Value of pInt = {0}", *pInt);
}
}
Sample Output
Note that the address of theChar will vary from run to run, because the physical address allocated to a variable can change.
Value of theChar = Z
Address of theChar = 12F718
Value of pChar = Z
Value of pInt = 90
See Also
Reference
Pointer Expressions (C# Programming Guide)
Pointer types (C# Programming Guide)
unsafe (C# Reference)
fixed Statement (C# Reference)
stackalloc (C# Reference)