C# Programming/Keywords/fixed

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The fixed keyword is used to prevent the garbage collector from relocating a variable. You may only use this in an unsafe context.

fixed (int *c = &shape.color) {
  *c = Color.White; 

If you are using C# 2.0 or greater, the fixed may also be used to declare a fixed-size array. This is useful when creating code that works with a COM project or DLL.

Your array must be composed of one of the primitive types: bool, byte, char, double, float, int, long, sbyte, short, ulong, or ushort.

protected fixed int monthDays[12];

C# Keywords
abstract as base bool break
byte case catch char checked
class const continue decimal default
delegate do double else enum
event explicit extern false finally
fixed float for foreach
goto if implicit in int
interface internal is lock long
namespace new null object operator
out override params private protected
public readonly ref return sbyte
sealed short sizeof stackalloc
static string struct switch this
throw true try typeof uint
ulong unchecked unsafe ushort using
var virtual void volatile while
Special C# Identifiers
add alias get global partial
remove set value where yield