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About the last bit: http://en.wikipedia.org/wiki/Covariance_and_contravariance_%28computer_science%29#Need_for_covariant_argument_types.3F http://en.wikipedia.o
by route66 13y ago
About the last bit: http://en.wikipedia.org/wiki/Covariance_and_contravariance_%28computer_science%29#Need_for_covariant_argument_types.3F http://en.wikipedia.org/wiki/Covariance_and_contravariance_%... is probably one of the issues.
- btilly 13y agoIt is, although programmers have mostly working solutions that they are used to for that one.