This fails at compile-time:
public enum MyEnum : short {
ValueOne = 0,
ValueTwo = 1,
}
Console.WriteLine((MyEnum)Int32.MaxValue);
John.
>-----Original Message-----
>From: Moderated discussion of advanced .NET topics. [mailto:ADVANCED-
>[EMAIL PROTECTED] On Behalf Of Daniel O'Connell
>Sent: Saturday, 10 April 2004 4:56 AM
>To: [EMAIL PROTECTED]
>Subject: Re: [ADVANCED-DOTNET] Enumeration bounds checking?
>
>Because it's perfectly legal as far as the CLR is concerned. An enum is
>effectively an integral primitive that is treated slightly differently
by
>the runtime. Any valid value for the primitive type is a valid value
for
>the enum.
>By not limiting the enum to a set of values, it's possible to support
>scenarios where unknown enum values can be ignored or where flags with
>unknown bits set can exist. If it's important in your application you
can
>perform checking yourself pretty easily without bogging down all uses
of
>enums with needless value checking.
>
>> -----Original Message-----
>> From: Moderated discussion of advanced .NET topics. [mailto:ADVANCED-
>> [EMAIL PROTECTED] On Behalf Of Michael Sawczyn
>> Sent: Thursday, April 08, 2004 3:35 PM
>> To: [EMAIL PROTECTED]
>> Subject: [ADVANCED-DOTNET] Enumeration bounds checking?
>>
>> This is curious, and not covered in the C# language spec that I can
find.
>> There appears not to be bounds checking invoked when enums are passed
as
>> parameters. The following compiles and runs successfully. Any
thoughts as
>> to why this would not be a language defect?
>>
>> public enum E
>> {
>> E1,
>> E2
>> };
>>
>> class Class1
>> {
>> static void Main()
>> {
>> foo((E)50); // should throw runtime exception?
>> }
>>
>> static void foo(E e)
>> {
>> System.Console.Out.WriteLine(e);
>> }
>> }
>>
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>
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