Hi,

does anyone know whether the custom IComparer and IHashCodeProvider are used
for (a) keys only, (b) values only, (c) both?

(I'd prefer c to be the answer

Thanks,
Phil

Philipp Schumann <(E-Mail Removed)> wrote:
> does anyone know whether the custom IComparer and IHashCodeProvider are used
> for (a) keys only, (b) values only, (c) both?
>
> (I'd prefer c to be the answer

a) - the values are never compared in a Hashtable. The point is to map
keys to values.

--
Jon Skeet - <(E-Mail Removed)>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

Hi Jon,

thanks---I was just wondering whether Hashtable.ContainsValue would
implicitly use one of the two, or both, thus I was hoping for (c) =)

Best,
Phil

"Jon Skeet [C# MVP]" <(E-Mail Removed)> schrieb im Newsbeitrag
news:(E-Mail Removed)...
> Philipp Schumann <(E-Mail Removed)> wrote:
>> does anyone know whether the custom IComparer and IHashCodeProvider are
>> used
>> for (a) keys only, (b) values only, (c) both?
>>
>> (I'd prefer c to be the answer
>
> a) - the values are never compared in a Hashtable. The point is to map
> keys to values.
>
> --
> Jon Skeet - <(E-Mail Removed)>
> http://www.pobox.com/~skeet
> If replying to the group, please do not mail me too

Philipp Schumann <(E-Mail Removed)> wrote:
> thanks---I was just wondering whether Hashtable.ContainsValue would
> implicitly use one of the two, or both, thus I was hoping for (c) =)

Hashtable.ContainsValue has to walk through all the "buckets" looking
for the value, using object.Equals to check each bucket's value.

--
Jon Skeet - <(E-Mail Removed)>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too