How is enumerations are stored in memory?
I need an answer right now..so who all is seeing this if you know pls reply me..
Regards,
TeenzoneZ.
3  1050 
hi,
If anyone knows how enumerations are stored in memory...
TeenzoneZ.
From Joe Duffy's Professional .NET Framework 2.0 (buy the book, it's great!):
An enumeration (a.k.a. enum) is a special type that maps a set of names to numeric values. Using them is an alternative to embedding constants in your code and provides a higher level of nominal type safety. Enum types look much like ordinary types in metadata, although they abide by a strict set of rules as defined in the CTS. For example, defining methods or constructors on enum types is prohibited, as is implementing interfaces, and they can only have a single field to represent the value. The rules exist so that enums are performant and so languages can treat them in a certain manner. Thankfully, most languages have syntactic support to abstract these rules away (C# included).
An enum type itself derives from System.Enum, which itself derives from System.ValueType. Each is backed by a specific primitive data type, one of Boolean, Char, Byte, Int16, Int32, Int64, SByte, UInt16, UInt32, UInt64, IntPtr, UIntPtr, Single, and Double. Int32 is used as the default in most languages; it provides a good compromise between storage and capability to extend the enum in the future to support more and more values.
An instance of a given enum contains a single field representing its value. Because enums are value types, having an instance of one is essentially the same as having a value of its backing store type, except that you can refer to it by type name, and they can be coerced back and forth rather simply.
Hi
Thanks
Regards,
TeenzoneZ
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