Hi Jan,

in functional programming there is no such thing as "identity" as we understand the idea from OO.

There is only such as thing as "equality" though.

Günther


Am 03.01.2009, 16:28 Uhr, schrieb Xie Hanjian <[email protected]>:

Hi,

I tried this in ghci:
Prelude> 1:2:[] == 1:2:[]
True

Does this mean (:) return the same object on same input, or
(==) is not for identity checking? If the later is true, how
can I check two object is the *same* object?

Thanks
Jan




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