readInt docs mention Integral typeclass which doesn't appear in signature
Summary
The docs for readInt in Numeric mention Integral in single quotes, which makes it get linked to the Integral type class on rendering.
https://gitlab.haskell.org/ghc/ghc/-/blob/master/libraries/base/Numeric.hs#L81
Proposed improvements or changes
It should mention the Num constraint and whether the unsigned requirement is only relevant for input.
It seems to work fine for negative numbers:
ghci> readInt 2 (`elem` "01") digitToInt ("1" ++ (concat $ replicate 63 "1")) :: [(Int,String)]
[(-1,"")]Environment
9.2.1