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Koshkin
on Jan 21, 2019
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Covariance and contravariance in C++
Some things are better left to the subconscious. Otherwise one might find themselves in a position of a centipede who lost the ability to walk as soon as it started wondering which leg to move first.
paulddraper
on Jan 21, 2019
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Any pattern involving "callbacks" or similar make one wish for contravariance, though in my experience it is not an intuitive idea.
skummetmaelk
on Jan 21, 2019
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Analysis paralysis.
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