Unnecessary comma in enum declaration

Question

Possible Duplicate:
.NET Enumeration allows comma in the last field

public enum SubPackageBackupModes
{
    Required,
    NotRequired //no comma
}

public enum SubPackageBackupModes
{
    Required,
    NotRequired, //extra unnecessary comma 
}

Since both compile, is there any differences between these declarations?

Nope......................its a convenience thing, for adding the next and the next.... — Mitch Wheat, Feb 26 '11 at 10:57
Duplicate of http://stackoverflow.com/questions/792753/is-the-last-comma-in-c-enum-required — Greg Treleaven, Feb 26 '11 at 10:58
True, but C# borrows a large portion of its syntax from C. It makes sense that if it's allowed in C99, it would be allowed in C#. A similar rationale applies, in addition to history. — Cody Gray, Feb 26 '11 at 11:04
@Greg: that's link is for `C` not `C#`, that's more suitable --> http://stackoverflow.com/questions/2147333/net-enumeration-allows-comma-in-the-last-field — digEmAll, Feb 26 '11 at 11:06
@froeschli @digEmAll: Oh, I didn't notice that c# tag. My mistake. — Greg Treleaven, Feb 26 '11 at 11:09

score 4 · Accepted Answer · answered Feb 26 '11 at 10:58

4

I prefer second syntax because if you will add addition member to your enum you will have only one line difference in SCM.

answered Feb 26 '11 at 10:58

Snowbear

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You can also achieve that by putting the comma before the value (i.e. no comma on the first line) -- ugly but can be useful for cases where the extra comma isn't allowed. – tgdavies Feb 26 '11 at 11:01
4

@tdavies, agree, ugly :) I will prefer having two lines of diff instead of lines starting with comma. – Snowbear Feb 26 '11 at 11:03

score 2 · Answer 2 · edited Feb 26 '11 at 11:06

2

No, there is no difference.

This was allowed in C++ also, and that continues. I guess it is easier with the comma, since you may comment out the last enum element and it is easier for code-generation tools.

edited Feb 26 '11 at 11:06

Cody Gray

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answered Feb 26 '11 at 11:00

Ken D

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Unnecessary comma in enum declaration

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