Re: Comparing Array Objects

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From: Alvin Bruney [MVP] (vapor)
Date: 02/24/04 

Date: Tue, 24 Feb 2004 12:29:24 -0600

> However, on a side-note, when realizing a ValueType class, like a struct
in
> C#; forgetting to override Equals, GetHashCode and ToString should be a
> criminal offence. =)

No. not true at all.

An application even as gracious as the framework cannot uncover every
programmer's intent. In this regard, overriding must be a recommendation
albeit a strong one. But it cannot be manditory as in a criminal offense
which is what you are implying. Throughout the programming life cycle there
may be times when overriding is not needed even for valuetype classes. A
framework needs to be as flexible as possible which is why overriding is
always optional. 

-- 
Regards,
Alvin Bruney [ASP.NET MVP]
Got tidbits? Get it here...
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"Michael S" <a@b.c> wrote in message
news:uWFhtFs%23DHA.2524@tk2msftngp13.phx.gbl...
>
> "Jon Skeet [C# MVP]" <skeet@pobox.com> wrote in message
> news:MPG.1aa3f876e1ef241798a1d6@msnews.microsoft.com...
> > Raphael Iloh <ilohraphael_NOSPAM@hotmail.com> wrote:
> > > ...thanks Alvin but your explanation falls short given the following
> > > example:
>
> > The real reason is that Array doesn't override the Equals method
> > (unlike, say, String).
>
> This is the real explaination. One should never assume that comparison are
> value-based. Hence that two different arrays are not equal, is working as
> designed.
>
> However, on a side-note, when realizing a ValueType class, like a struct
in
> C#; forgetting to override Equals, GetHashCode and ToString should be a
> criminal offence. =)
>
> - Michael S
>
> ps.
>  Keep up the good work Skeet. I like you posts....
>
>

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