natural is:exact

natural :: GenTokenParser s u m -> ParsecT s u m Integer
parsec Text.Parsec.Token Text.ParserCombinators.Parsec.Token
This lexeme parser parses a natural number (a non-negative whole number). Returns the value of the number. The number can be specified in decimal, hexadecimal or octal. The number is parsed according to the grammar rules in the Haskell report.
natural :: TokenParsing m => m Integer
parsers Text.Parser.Token
This token parser parses a natural number (a non-negative whole number). Returns the value of the number. The number can be specified in decimal, hexadecimal or octal. The number is parsed according to the grammar rules in the Haskell report.
natural :: Decoder Natural
dhall Dhall.Marshal.Decode
Decode a Natural. 
>>> input natural "42"
42
natural :: Key -> TomlCodec Natural
tomland Toml.Codec.Combinator.Primitive
Codec for natural values.
natural :: Parser Int
polyparse Text.ParserCombinators.HuttonMeijer
natural :: Natural
leancheck Test.LeanCheck.Utils.TypeBinding
Undefined Natural value.
natural :: MyParser Integer
tidal Sound.Tidal.Boot, tidal-core Sound.Tidal.ParseBP
natural :: Natural n => f Zero -> (forall m . Natural m => f (Succ m)) -> f n
natural-induction Data.Natural.Class
natural :: STR Integer
RefSerialize Data.RefSerialize.Parser
package natural
Uses
Not on Stackage, so not searched. Natural number
natural :: Decoder Natural
aeson-combinators Data.Aeson.Combinators.Decode
Decode JSON number to GHC's Natural (non negative) This function requires base >= 4.8.0
natural :: Encoder Natural
aeson-combinators Data.Aeson.Combinators.Encode
Encode JSON number to GHC's Natural (non negative) This function requires base >= 4.8.0