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 (Contextual Keywords)
add alias async await dynamic
get global nameof partial remove
set value when where yield
Contextual Keywords (Used in Queries)
ascending by descending equals from
group in into join let
on orderby select where