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ramshorns
on Jan 21, 2019
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Covariance and contravariance in C++
Cool. It looks like the one place I'd seen these terms used is a subcategory of one of a few different but related uses.
https://en.wikipedia.org/wiki/Covariance_and_contravariance
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Search:
https://en.wikipedia.org/wiki/Covariance_and_contravariance