Alternative Prelude with numeric and logic expressions typed bottom-up


Version on this page:
LTS Haskell 22.26:0.5.12
Stackage Nightly 2024-06-18:0.5.12
Latest on Hackage:0.5.12

See all snapshots mixed-types-num appears in

BSD-3-Clause licensed by Michal Konecny
Maintained by Michal Konecny
This version can be pinned in stack with:mixed-types-num-,2833

This package provides a version of Prelude where unary and binary operations such as not, +, == have their result type derived from the parameter type(s) and thus supports mixed-type arithmetic and comparisons.

See module MixedTypesNumPrelude for further documentation.

Ghci 8.0.* fails when loading this package due to ghc bug 13385. This bug does not affect ghci 7.10.3 and ghci 8.2.1.


  • v 2017-12-06

    • removed upper bounds for dependencies
  • v 2017-08-22

    • fixed bound on base in test suite
  • v 2017-08-15

    • provided compatible versions of take, drop, length, replicate, splitAt
    • added missing mixed-type subtraction combination to Ring etc.
  • v 2017-08-01

    • improve package documentation in module MixedTypesNumPrelude
  • v 0.3 2017-08-01

    • renamed the main module to MixedTypesNumPrelude
    • much faster compilation
    • Ring and Field are now classes, not synonyms for large sets of constraints
    • many fixes in collect-error framework and its use in division and power
    • Overloaded if-then-else via -XRebindableSyntax
    • compiling with ghc 8.2.1
  • v

    • fix compilation bug in test suite
    • minor doc improvements
    • fix Complex instances of error-throwing division (/!)
  • v 0.2

    • new CollectErrors wrapper
    • CN, specialisation of CollectErrors to NumErrors
    • numerical partial operators (eg division) return a CN type
    • instances for Data.Complex
  • v 0.1

    • first release