C# Programming/Keywords/fixed

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