validity

Validity typeclass

https://github.com/NorfairKing/validity#readme

LTS Haskell 23.22:0.12.1.0
Stackage Nightly 2025-05-18:0.12.1.0
Latest on Hackage:0.12.1.0

See all snapshots validity appears in

MIT licensed by Tom Sydney Kerckhove
Maintained by [email protected]
This version can be pinned in stack with:validity-0.12.1.0@sha256:c31797bae381a069146f068b986334f59dbc3601a3875049f2c54a4b8c90a8dd,2534

Module documentation for 0.12.1.0

Depends on 1 package(full list with versions):
base

For more info, see the readme.

Note: There are companion instance packages for this library:

Changes

Changelog

[0.12.1.0 - 2024-07-18]

Added

  • Validity instances for various newtypes in base

[0.12.0.2] - 2023-10-09

Added

  • decorateString

[0.12.0.1] - 2022-04-26

Added

  • Compatibility with GHC >= 9.0.0

[0.12.0.0] - 2021-11-20

Removed

  • RelativeValidity, it was a misfeature.

[0.11.0.0] - 2020-04-17

Changed

  • Made it so that Char is no longer trivially valid.

[0.10.0.0] - 2020-04-12

Changed

  • Made it so that Word8, Word16, Word32 and Int8, Int16, Int32 are no longer trivially valid.

[0.9.0.3] - 2020-02-10

Changed

  • Improved the ‘validateRatioNormalised’ to not crash on certain extreme values.

[0.9.0.2] - 2019-09-27

Added

  • isUtf16SurrogateCodePoint and validateCharNotUtf16SurrogateCodePoint

Changed

  • The contents of the error message when using validateNotNan or validateNotInfinite is now more accurate.

Added

  • validateRatioNotNan
  • validateRatioNotInfinite
  • validateRatioNormalised

[0.9.0.1] - 2018-12-05

Changed

  • The validity instance of Ratio a now disallows unnormalised values. So 0 %: 1 is valid, but 0 %: 2 is not.

[0.9.0.0] - 2018-10-07

Added

  • prettyValidate, validationIsValid, prettyValidation
  • validateNotNaN, validateNotInfinite

Changed

  • Renamed prettyValidation to prettyValidate before adding the new prettyValidation.
  • NaN, +Infinity and -Infinity are now considered valid for both Double and Float.

[0.8.0.0] - 2018-08-25

Added

  • decorateList in Data.Validity

Changed

  • -0 is now a valid value for Double and Float.

Older versions

No history before version 0.8.0.0