:: Num i => [a] -> i package:ghc-lib-parser

strictGenericLength :: Num a => [x] -> a
ghc-lib-parser GHC.Prelude.Basic
The genericLength function defined in base can't be specialised due to the NOINLINE pragma. It is also not strict in the accumulator, and strictGenericLength is not exported. See #25706 for why it is important to use a strict, specialised version.