Hi – there is a countLeadingZeros function. It applies to instances of FiniteBits, such as Int (a fixed bit-size integer): GHCi, version 8.10.7: https://www.haskell.org/ghc/ :? for help Loaded package environment from C:\Users\David\AppData\Roaming\ghc\x86_64-mingw32-8.10.7\environments\default
:m +Data.Bits countLeadingZeros (23 :: Int) 59
The Integer type represents unbounded integers, so countLeadingZeros doesn’t really make sense. (ps. you can seach for functions like countLeadingZeros on Hooglehttps://hoogle.haskell.org/). Hope that helps, David. From: james fauremailto:james.faure@epitech.eu Sent: 13 November 2021 00:16 To: haskell-cafe@haskell.orgmailto:haskell-cafe@haskell.org Subject: [Haskell-cafe] clz / bsr functions on Integer Why is there no `countLeadingZeros` function for Integer? This seems particularly strange because gmp provides mp_bitcnt_t mpz_scan0 (const mpz_t op, mp_bitcnt_t starting_bit) More importantly, what is the recommended way to access it?