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If you require a constraint to be able to provide Default values (even if every type in fact implements Default - c.f. Typeable) then for Tuple in particular th
by dllthomas 10y ago
If you require a constraint to be able to provide Default values (even if every type in fact implements Default - c.f. Typeable) then for Tuple in particular there is only the correct implementation (modulo bottom or hidden side-effects).